WSL2-Linux-Kernel/include/linux/nfs_xdr.h

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 17:07:57 +03:00
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H
#include <linux/nfsacl.h>
#include <linux/sunrpc/gss_api.h>
/*
* To change the maximum rsize and wsize supported by the NFS client, adjust
* NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
* support a megabyte or more. The default is left at 4096 bytes, which is
* reasonable for NFS over UDP.
*/
#define NFS_MAX_FILE_IO_SIZE (1048576U)
#define NFS_DEF_FILE_IO_SIZE (4096U)
#define NFS_MIN_FILE_IO_SIZE (1024U)
#define NFS_BITMASK_SZ 3
struct nfs4_string {
unsigned int len;
char *data;
};
struct nfs_fsid {
uint64_t major;
uint64_t minor;
};
/*
* Helper for checking equality between 2 fsids.
*/
static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
{
return a->major == b->major && a->minor == b->minor;
}
struct nfs4_threshold {
__u32 bm;
__u32 l_type;
__u64 rd_sz;
__u64 wr_sz;
__u64 rd_io_sz;
__u64 wr_io_sz;
};
struct nfs_fattr {
unsigned int valid; /* which fields are valid */
umode_t mode;
__u32 nlink;
kuid_t uid;
kgid_t gid;
dev_t rdev;
__u64 size;
union {
struct {
__u32 blocksize;
__u32 blocks;
} nfs2;
struct {
__u64 used;
} nfs3;
} du;
struct nfs_fsid fsid;
__u64 fileid;
__u64 mounted_on_fileid;
struct timespec64 atime;
struct timespec64 mtime;
struct timespec64 ctime;
__u64 change_attr; /* NFSv4 change attribute */
__u64 pre_change_attr;/* pre-op NFSv4 change attribute */
__u64 pre_size; /* pre_op_attr.size */
struct timespec64 pre_mtime; /* pre_op_attr.mtime */
struct timespec64 pre_ctime; /* pre_op_attr.ctime */
unsigned long time_start;
unsigned long gencount;
struct nfs4_string *owner_name;
struct nfs4_string *group_name;
struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
struct nfs4_label *label;
};
#define NFS_ATTR_FATTR_TYPE (1U << 0)
#define NFS_ATTR_FATTR_MODE (1U << 1)
#define NFS_ATTR_FATTR_NLINK (1U << 2)
#define NFS_ATTR_FATTR_OWNER (1U << 3)
#define NFS_ATTR_FATTR_GROUP (1U << 4)
#define NFS_ATTR_FATTR_RDEV (1U << 5)
#define NFS_ATTR_FATTR_SIZE (1U << 6)
#define NFS_ATTR_FATTR_PRESIZE (1U << 7)
#define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
#define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
#define NFS_ATTR_FATTR_FSID (1U << 10)
#define NFS_ATTR_FATTR_FILEID (1U << 11)
#define NFS_ATTR_FATTR_ATIME (1U << 12)
#define NFS_ATTR_FATTR_MTIME (1U << 13)
#define NFS_ATTR_FATTR_CTIME (1U << 14)
#define NFS_ATTR_FATTR_PREMTIME (1U << 15)
#define NFS_ATTR_FATTR_PRECTIME (1U << 16)
#define NFS_ATTR_FATTR_CHANGE (1U << 17)
#define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
#define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
#define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
#define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
#define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
| NFS_ATTR_FATTR_MODE \
| NFS_ATTR_FATTR_NLINK \
| NFS_ATTR_FATTR_OWNER \
| NFS_ATTR_FATTR_GROUP \
| NFS_ATTR_FATTR_RDEV \
| NFS_ATTR_FATTR_SIZE \
| NFS_ATTR_FATTR_FSID \
| NFS_ATTR_FATTR_FILEID \
| NFS_ATTR_FATTR_ATIME \
| NFS_ATTR_FATTR_MTIME \
| NFS_ATTR_FATTR_CTIME \
| NFS_ATTR_FATTR_CHANGE)
#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_BLOCKS_USED)
#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_SPACE_USED)
#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_SPACE_USED \
| NFS_ATTR_FATTR_V4_SECURITY_LABEL)
/*
* Maximal number of supported layout drivers.
*/
#define NFS_MAX_LAYOUT_TYPES 8
/*
* Info on the file system
*/
struct nfs_fsinfo {
struct nfs_fattr *fattr; /* Post-op attributes */
__u32 rtmax; /* max. read transfer size */
__u32 rtpref; /* pref. read transfer size */
__u32 rtmult; /* reads should be multiple of this */
__u32 wtmax; /* max. write transfer size */
__u32 wtpref; /* pref. write transfer size */
__u32 wtmult; /* writes should be multiple of this */
__u32 dtpref; /* pref. readdir transfer size */
__u64 maxfilesize;
struct timespec64 time_delta; /* server time granularity */
__u32 lease_time; /* in seconds */
__u32 nlayouttypes; /* number of layouttypes */
__u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */
__u32 blksize; /* preferred pnfs io block size */
__u32 clone_blksize; /* granularity of a CLONE operation */
enum nfs4_change_attr_type
change_attr_type; /* Info about change attr */
__u32 xattr_support; /* User xattrs supported */
};
struct nfs_fsstat {
struct nfs_fattr *fattr; /* Post-op attributes */
__u64 tbytes; /* total size in bytes */
__u64 fbytes; /* # of free bytes */
__u64 abytes; /* # of bytes available to user */
__u64 tfiles; /* # of files */
__u64 ffiles; /* # of free files */
__u64 afiles; /* # of files available to user */
};
struct nfs2_fsstat {
__u32 tsize; /* Server transfer size */
__u32 bsize; /* Filesystem block size */
__u32 blocks; /* No. of "bsize" blocks on filesystem */
__u32 bfree; /* No. of free "bsize" blocks */
__u32 bavail; /* No. of available "bsize" blocks */
};
struct nfs_pathconf {
struct nfs_fattr *fattr; /* Post-op attributes */
__u32 max_link; /* max # of hard links */
__u32 max_namelen; /* max name length */
};
struct nfs4_change_info {
u32 atomic;
u64 before;
u64 after;
};
struct nfs_seqid;
nfs41: sessions client infrastructure NFSv4.1 Sessions basic data types, initialization, and destruction. The session is always associated with a struct nfs_client that holds the exchange_id results. Signed-off-by: Rahul Iyer <iyer@netapp.com> Signed-off-by: Andy Adamson<andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [remove extraneous rpc_clnt pointer, use the struct nfs_client cl_rpcclient. remove the rpc_clnt parameter from nfs4 nfs4_init_session] Signed-off-by: Andy Adamson<andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [Use the presence of a session to determine behaviour instead of the minorversion number.] Signed-off-by: Andy Adamson <andros@netapp.com> [constified nfs4_has_session's struct nfs_client parameter] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [Rename nfs4_put_session() to nfs4_destroy_session() and call it from nfs4_free_client() not nfs4_free_server(). Also get rid of nfs4_get_session() and the ref_count in nfs4_session struct as keeping track of nfs_client should be sufficient] Signed-off-by: Alexandros Batsakis <Alexandros.Batsakis@netapp.com> [nfs41: pass rsize and wsize into nfs4_init_session] Signed-off-by: Andy Adamson <andros@netapp.com> [separated out removal of rpc_clnt parameter from nfs4_init_session ot a patch of its own] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [Pass the nfs_client pointer into nfs4_alloc_session] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: don't assign to session->clp->cl_session in nfs4_destroy_session] [nfs41: fixup nfs4_clear_client_minor_version] [introduce nfs4_clear_client_minor_version() in this patch] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [Refactor nfs4_init_session] Moved session allocation into nfs4_init_client_minor_version, called from nfs4_init_client. Leave rwise and wsize initialization in nfs4_init_session, called from nfs4_init_server. Reverted moving of nfs_fsid definition to nfs_fs_sb.h Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: Move NFS4_MAX_SLOT_TABLE define from under CONFIG_NFS_V4_1] [Fix comile error when CONFIG_NFS_V4_1 is not set.] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [moved nfs4_init_slot_table definition to "create_session operation"] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: alloc session with GFP_KERNEL] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-04-01 17:21:53 +04:00
/* nfs41 sessions channel attributes */
struct nfs4_channel_attrs {
u32 max_rqst_sz;
u32 max_resp_sz;
u32 max_resp_sz_cached;
u32 max_ops;
u32 max_reqs;
};
struct nfs4_slot;
struct nfs4_sequence_args {
struct nfs4_slot *sa_slot;
u8 sa_cache_this : 1,
sa_privileged : 1;
};
struct nfs4_sequence_res {
struct nfs4_slot *sr_slot; /* slot used to send request */
unsigned long sr_timestamp;
nfs41: setup_sequence method Allocate a slot in the session slot table and set the sequence op arguments. Called at the rpc prepare stage. Add a status to nfs41_sequence_res, initialize it to one so that we catch rpc level failures which do not go through decode_sequence which sets the new status field. Note that upon an rpc level failure, we don't know if the server processed the sequence operation or not. Proceed as if the server did process the sequence operation. Signed-off-by: Rahul Iyer <iyer@netapp.com> [nfs41: sequence args use slotid] [nfs41: find slot return slotid] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: remove SEQ4_STATUS_USE_TK_STATUS] As per 11-14-08 review [move extern declaration from nfs41: sequence setup/done support] [removed sa_session definition, changed sa_cache_this into a u8 to reduce footprint] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: rpc_sleep_on slot_tbl_waitq must be called under slot_tbl_lock] Otherwise there's a race (we've hit) with nfs4_free_slot where nfs41_setup_sequence sees a full slot table, unlocks slot_tbl_lock, nfs4_free_slots happen concurrently and call rpc_wake_up_next where there's nobody to wake up yet, context goes back to nfs41_setup_sequence which goes to sleep when the slot table is actually empty now and there's no-one to wake it up anymore. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2009-04-01 17:22:15 +04:00
int sr_status; /* sequence operation status */
u32 sr_status_flags;
u32 sr_highest_slotid;
u32 sr_target_highest_slotid;
};
struct nfs4_get_lease_time_args {
struct nfs4_sequence_args la_seq_args;
};
struct nfs4_get_lease_time_res {
struct nfs4_sequence_res lr_seq_res;
struct nfs_fsinfo *lr_fsinfo;
};
struct xdr_stream;
struct nfs4_xdr_opaque_data;
struct nfs4_xdr_opaque_ops {
void (*encode)(struct xdr_stream *, const void *args,
const struct nfs4_xdr_opaque_data *);
void (*free)(struct nfs4_xdr_opaque_data *);
};
struct nfs4_xdr_opaque_data {
const struct nfs4_xdr_opaque_ops *ops;
void *data;
};
#define PNFS_LAYOUT_MAXSIZE 4096
struct nfs4_layoutdriver_data {
struct page **pages;
__u32 pglen;
__u32 len;
};
struct pnfs_layout_range {
u32 iomode;
u64 offset;
u64 length;
};
struct nfs4_layoutget_args {
struct nfs4_sequence_args seq_args;
__u32 type;
struct pnfs_layout_range range;
__u64 minlength;
__u32 maxcount;
struct inode *inode;
struct nfs_open_context *ctx;
nfs4_stateid stateid;
struct nfs4_layoutdriver_data layout;
};
struct nfs4_layoutget_res {
struct nfs4_sequence_res seq_res;
int status;
__u32 return_on_close;
struct pnfs_layout_range range;
__u32 type;
nfs4_stateid stateid;
struct nfs4_layoutdriver_data *layoutp;
};
struct nfs4_layoutget {
struct nfs4_layoutget_args args;
struct nfs4_layoutget_res res;
const struct cred *cred;
struct pnfs_layout_hdr *lo;
gfp_t gfp_flags;
};
struct nfs4_getdeviceinfo_args {
struct nfs4_sequence_args seq_args;
struct pnfs_device *pdev;
__u32 notify_types;
};
struct nfs4_getdeviceinfo_res {
struct nfs4_sequence_res seq_res;
struct pnfs_device *pdev;
__u32 notification;
};
struct nfs4_layoutcommit_args {
struct nfs4_sequence_args seq_args;
nfs4_stateid stateid;
__u64 lastbytewritten;
struct inode *inode;
const u32 *bitmask;
size_t layoutupdate_len;
struct page *layoutupdate_page;
struct page **layoutupdate_pages;
__be32 *start_p;
};
struct nfs4_layoutcommit_res {
struct nfs4_sequence_res seq_res;
struct nfs_fattr *fattr;
const struct nfs_server *server;
int status;
};
struct nfs4_layoutcommit_data {
struct rpc_task task;
struct nfs_fattr fattr;
struct list_head lseg_list;
const struct cred *cred;
struct inode *inode;
struct nfs4_layoutcommit_args args;
struct nfs4_layoutcommit_res res;
};
struct nfs4_layoutreturn_args {
struct nfs4_sequence_args seq_args;
struct pnfs_layout_hdr *layout;
struct inode *inode;
struct pnfs_layout_range range;
nfs4_stateid stateid;
__u32 layout_type;
struct nfs4_xdr_opaque_data *ld_private;
};
struct nfs4_layoutreturn_res {
struct nfs4_sequence_res seq_res;
u32 lrs_present;
nfs4_stateid stateid;
};
struct nfs4_layoutreturn {
struct nfs4_layoutreturn_args args;
struct nfs4_layoutreturn_res res;
const struct cred *cred;
struct nfs_client *clp;
struct inode *inode;
int rpc_status;
struct nfs4_xdr_opaque_data ld_private;
};
#define PNFS_LAYOUTSTATS_MAXSIZE 256
struct nfs42_layoutstat_args;
struct nfs42_layoutstat_devinfo;
typedef void (*layoutstats_encode_t)(struct xdr_stream *,
struct nfs42_layoutstat_args *,
struct nfs42_layoutstat_devinfo *);
/* Per file per deviceid layoutstats */
struct nfs42_layoutstat_devinfo {
struct nfs4_deviceid dev_id;
__u64 offset;
__u64 length;
__u64 read_count;
__u64 read_bytes;
__u64 write_count;
__u64 write_bytes;
__u32 layout_type;
struct nfs4_xdr_opaque_data ld_private;
};
struct nfs42_layoutstat_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
struct inode *inode;
nfs4_stateid stateid;
int num_dev;
struct nfs42_layoutstat_devinfo *devinfo;
};
struct nfs42_layoutstat_res {
struct nfs4_sequence_res seq_res;
int num_dev;
int rpc_status;
};
struct nfs42_layoutstat_data {
struct inode *inode;
struct nfs42_layoutstat_args args;
struct nfs42_layoutstat_res res;
};
struct nfs42_device_error {
struct nfs4_deviceid dev_id;
int status;
enum nfs_opnum4 opnum;
};
struct nfs42_layout_error {
__u64 offset;
__u64 length;
nfs4_stateid stateid;
struct nfs42_device_error errors[1];
};
#define NFS42_LAYOUTERROR_MAX 5
struct nfs42_layouterror_args {
struct nfs4_sequence_args seq_args;
struct inode *inode;
unsigned int num_errors;
struct nfs42_layout_error errors[NFS42_LAYOUTERROR_MAX];
};
struct nfs42_layouterror_res {
struct nfs4_sequence_res seq_res;
unsigned int num_errors;
int rpc_status;
};
struct nfs42_layouterror_data {
struct nfs42_layouterror_args args;
struct nfs42_layouterror_res res;
struct inode *inode;
struct pnfs_layout_segment *lseg;
};
struct nfs42_clone_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *src_fh;
struct nfs_fh *dst_fh;
nfs4_stateid src_stateid;
nfs4_stateid dst_stateid;
__u64 src_offset;
__u64 dst_offset;
__u64 count;
const u32 *dst_bitmask;
};
struct nfs42_clone_res {
struct nfs4_sequence_res seq_res;
unsigned int rpc_status;
struct nfs_fattr *dst_fattr;
const struct nfs_server *server;
};
struct stateowner_id {
__u64 create_time;
__u32 uniquifier;
};
/*
* Arguments to the open call.
*/
struct nfs_openargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
struct nfs_seqid * seqid;
int open_flags;
fmode_t fmode;
u32 share_access;
u32 access;
__u64 clientid;
struct stateowner_id id;
union {
struct {
struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
nfs4_verifier verifier; /* EXCLUSIVE */
};
nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
fmode_t delegation_type; /* CLAIM_PREVIOUS */
} u;
const struct qstr * name;
const struct nfs_server *server; /* Needed for ID mapping */
const u32 * bitmask;
const u32 * open_bitmap;
enum open_claim_type4 claim;
enum createmode4 createmode;
const struct nfs4_label *label;
umode_t umask;
struct nfs4_layoutget_args *lg_args;
};
struct nfs_openres {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_fh fh;
struct nfs4_change_info cinfo;
__u32 rflags;
struct nfs_fattr * f_attr;
struct nfs_seqid * seqid;
const struct nfs_server *server;
fmode_t delegation_type;
nfs4_stateid delegation;
unsigned long pagemod_limit;
__u32 do_recall;
__u32 attrset[NFS4_BITMAP_SIZE];
struct nfs4_string *owner;
struct nfs4_string *group_owner;
__u32 access_request;
__u32 access_supported;
__u32 access_result;
struct nfs4_layoutget_res *lg_res;
};
/*
* Arguments to the open_confirm call.
*/
struct nfs_open_confirmargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
nfs4_stateid * stateid;
struct nfs_seqid * seqid;
};
struct nfs_open_confirmres {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
};
/*
* Arguments to the close call.
*/
struct nfs_closeargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
fmode_t fmode;
u32 share_access;
const u32 * bitmask;
u32 bitmask_store[NFS_BITMASK_SZ];
struct nfs4_layoutreturn_args *lr_args;
};
struct nfs_closeres {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_fattr * fattr;
struct nfs_seqid * seqid;
const struct nfs_server *server;
struct nfs4_layoutreturn_res *lr_res;
int lr_ret;
};
/*
* * Arguments to the lock,lockt, and locku call.
* */
struct nfs_lowner {
__u64 clientid;
__u64 id;
dev_t s_dev;
};
struct nfs_lock_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_seqid * lock_seqid;
nfs4_stateid lock_stateid;
struct nfs_seqid * open_seqid;
nfs4_stateid open_stateid;
struct nfs_lowner lock_owner;
unsigned char block : 1;
unsigned char reclaim : 1;
unsigned char new_lock : 1;
unsigned char new_lock_owner : 1;
};
struct nfs_lock_res {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_seqid * lock_seqid;
struct nfs_seqid * open_seqid;
};
struct nfs_locku_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_seqid * seqid;
nfs4_stateid stateid;
};
struct nfs_locku_res {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
};
struct nfs_lockt_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_lowner lock_owner;
};
struct nfs_lockt_res {
struct nfs4_sequence_res seq_res;
struct file_lock * denied; /* LOCK, LOCKT failed */
};
struct nfs_release_lockowner_args {
struct nfs4_sequence_args seq_args;
struct nfs_lowner lock_owner;
};
struct nfs_release_lockowner_res {
struct nfs4_sequence_res seq_res;
};
struct nfs4_delegreturnargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fhandle;
const nfs4_stateid *stateid;
const u32 *bitmask;
u32 bitmask_store[NFS_BITMASK_SZ];
struct nfs4_layoutreturn_args *lr_args;
};
struct nfs4_delegreturnres {
struct nfs4_sequence_res seq_res;
struct nfs_fattr * fattr;
struct nfs_server *server;
struct nfs4_layoutreturn_res *lr_res;
int lr_ret;
};
/*
* Arguments to the write call.
*/
struct nfs_write_verifier {
char data[8];
};
struct nfs_writeverf {
struct nfs_write_verifier verifier;
enum nfs3_stable_how committed;
};
/*
* Arguments shared by the read and write call.
*/
struct nfs_pgio_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct nfs_open_context *context;
struct nfs_lock_context *lock_context;
nfs4_stateid stateid;
__u64 offset;
__u32 count;
unsigned int pgbase;
struct page ** pages;
union {
unsigned int replen; /* used by read */
struct {
const u32 * bitmask; /* used by write */
u32 bitmask_store[NFS_BITMASK_SZ]; /* used by write */
enum nfs3_stable_how stable; /* used by write */
};
};
};
struct nfs_pgio_res {
struct nfs4_sequence_res seq_res;
struct nfs_fattr * fattr;
__u64 count;
__u32 op_status;
union {
struct {
unsigned int replen; /* used by read */
int eof; /* used by read */
};
struct {
struct nfs_writeverf * verf; /* used by write */
const struct nfs_server *server; /* used by write */
};
};
};
/*
* Arguments to the commit call.
*/
struct nfs_commitargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
__u64 offset;
__u32 count;
const u32 *bitmask;
};
struct nfs_commitres {
struct nfs4_sequence_res seq_res;
__u32 op_status;
struct nfs_fattr *fattr;
struct nfs_writeverf *verf;
const struct nfs_server *server;
};
/*
* Common arguments to the unlink call
*/
struct nfs_removeargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fh;
struct qstr name;
};
struct nfs_removeres {
struct nfs4_sequence_res seq_res;
struct nfs_server *server;
struct nfs_fattr *dir_attr;
struct nfs4_change_info cinfo;
};
/*
* Common arguments to the rename call
*/
struct nfs_renameargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *old_dir;
const struct nfs_fh *new_dir;
const struct qstr *old_name;
const struct qstr *new_name;
};
struct nfs_renameres {
struct nfs4_sequence_res seq_res;
struct nfs_server *server;
struct nfs4_change_info old_cinfo;
struct nfs_fattr *old_fattr;
struct nfs4_change_info new_cinfo;
struct nfs_fattr *new_fattr;
};
/* parsed sec= options */
#define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
struct nfs_auth_info {
unsigned int flavor_len;
rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
};
/*
* Argument struct for decode_entry function
*/
struct nfs_entry {
__u64 ino;
__u64 cookie;
const char * name;
unsigned int len;
int eof;
struct nfs_fh * fh;
struct nfs_fattr * fattr;
unsigned char d_type;
struct nfs_server * server;
};
struct nfs_readdir_arg {
struct dentry *dentry;
const struct cred *cred;
__be32 *verf;
u64 cookie;
struct page **pages;
unsigned int page_len;
bool plus;
};
struct nfs_readdir_res {
__be32 *verf;
};
/*
* The following types are for NFSv2 only.
*/
struct nfs_sattrargs {
struct nfs_fh * fh;
struct iattr * sattr;
};
struct nfs_diropargs {
struct nfs_fh * fh;
const char * name;
unsigned int len;
};
struct nfs_createargs {
struct nfs_fh * fh;
const char * name;
unsigned int len;
struct iattr * sattr;
};
struct nfs_setattrargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
nfs4_stateid stateid;
struct iattr * iap;
const struct nfs_server * server; /* Needed for name mapping */
const u32 * bitmask;
const struct nfs4_label *label;
};
struct nfs_setaclargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
size_t acl_len;
struct page ** acl_pages;
};
struct nfs_setaclres {
struct nfs4_sequence_res seq_res;
};
struct nfs_getaclargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
size_t acl_len;
struct page ** acl_pages;
};
/* getxattr ACL interface flags */
#define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
struct nfs_getaclres {
struct nfs4_sequence_res seq_res;
size_t acl_len;
size_t acl_data_offset;
int acl_flags;
struct page * acl_scratch;
};
struct nfs_setattrres {
struct nfs4_sequence_res seq_res;
struct nfs_fattr * fattr;
const struct nfs_server * server;
};
struct nfs_linkargs {
struct nfs_fh * fromfh;
struct nfs_fh * tofh;
const char * toname;
unsigned int tolen;
};
struct nfs_symlinkargs {
struct nfs_fh * fromfh;
const char * fromname;
unsigned int fromlen;
struct page ** pages;
unsigned int pathlen;
struct iattr * sattr;
};
struct nfs_readdirargs {
struct nfs_fh * fh;
__u32 cookie;
unsigned int count;
struct page ** pages;
};
struct nfs3_getaclargs {
struct nfs_fh * fh;
int mask;
struct page ** pages;
};
struct nfs3_setaclargs {
struct inode * inode;
int mask;
struct posix_acl * acl_access;
struct posix_acl * acl_default;
size_t len;
unsigned int npages;
struct page ** pages;
};
struct nfs_diropok {
struct nfs_fh * fh;
struct nfs_fattr * fattr;
};
struct nfs_readlinkargs {
struct nfs_fh * fh;
unsigned int pgbase;
unsigned int pglen;
struct page ** pages;
};
struct nfs3_sattrargs {
struct nfs_fh * fh;
struct iattr * sattr;
unsigned int guard;
struct timespec64 guardtime;
};
struct nfs3_diropargs {
struct nfs_fh * fh;
const char * name;
unsigned int len;
};
struct nfs3_accessargs {
struct nfs_fh * fh;
__u32 access;
};
struct nfs3_createargs {
struct nfs_fh * fh;
const char * name;
unsigned int len;
struct iattr * sattr;
enum nfs3_createmode createmode;
__be32 verifier[2];
};
struct nfs3_mkdirargs {
struct nfs_fh * fh;
const char * name;
unsigned int len;
struct iattr * sattr;
};
struct nfs3_symlinkargs {
struct nfs_fh * fromfh;
const char * fromname;
unsigned int fromlen;
struct page ** pages;
unsigned int pathlen;
struct iattr * sattr;
};
struct nfs3_mknodargs {
struct nfs_fh * fh;
const char * name;
unsigned int len;
enum nfs3_ftype type;
struct iattr * sattr;
dev_t rdev;
};
struct nfs3_linkargs {
struct nfs_fh * fromfh;
struct nfs_fh * tofh;
const char * toname;
unsigned int tolen;
};
struct nfs3_readdirargs {
struct nfs_fh * fh;
__u64 cookie;
__be32 verf[2];
bool plus;
unsigned int count;
struct page ** pages;
};
struct nfs3_diropres {
struct nfs_fattr * dir_attr;
struct nfs_fh * fh;
struct nfs_fattr * fattr;
};
struct nfs3_accessres {
struct nfs_fattr * fattr;
__u32 access;
};
struct nfs3_readlinkargs {
struct nfs_fh * fh;
unsigned int pgbase;
unsigned int pglen;
struct page ** pages;
};
struct nfs3_linkres {
struct nfs_fattr * dir_attr;
struct nfs_fattr * fattr;
};
struct nfs3_readdirres {
struct nfs_fattr * dir_attr;
__be32 * verf;
bool plus;
};
struct nfs3_getaclres {
struct nfs_fattr * fattr;
int mask;
unsigned int acl_access_count;
unsigned int acl_default_count;
struct posix_acl * acl_access;
struct posix_acl * acl_default;
};
#if IS_ENABLED(CONFIG_NFS_V4)
typedef u64 clientid4;
struct nfs4_accessargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
u32 access;
};
struct nfs4_accessres {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
u32 supported;
u32 access;
};
struct nfs4_create_arg {
struct nfs4_sequence_args seq_args;
u32 ftype;
union {
struct {
struct page ** pages;
unsigned int len;
} symlink; /* NF4LNK */
struct {
u32 specdata1;
u32 specdata2;
} device; /* NF4BLK, NF4CHR */
} u;
const struct qstr * name;
const struct nfs_server * server;
const struct iattr * attrs;
const struct nfs_fh * dir_fh;
const u32 * bitmask;
const struct nfs4_label *label;
umode_t umask;
};
struct nfs4_create_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fh * fh;
struct nfs_fattr * fattr;
struct nfs4_change_info dir_cinfo;
};
struct nfs4_fsinfo_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_fsinfo_res {
struct nfs4_sequence_res seq_res;
struct nfs_fsinfo *fsinfo;
};
struct nfs4_getattr_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_getattr_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
};
struct nfs4_link_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const struct nfs_fh * dir_fh;
const struct qstr * name;
const u32 * bitmask;
};
struct nfs4_link_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs4_change_info cinfo;
struct nfs_fattr * dir_attr;
};
struct nfs4_lookup_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * dir_fh;
const struct qstr * name;
const u32 * bitmask;
};
struct nfs4_lookup_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs_fh * fh;
};
struct nfs4_lookupp_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fh;
const u32 *bitmask;
};
struct nfs4_lookupp_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server *server;
struct nfs_fattr *fattr;
struct nfs_fh *fh;
};
struct nfs4_lookup_root_arg {
struct nfs4_sequence_args seq_args;
const u32 * bitmask;
};
struct nfs4_pathconf_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_pathconf_res {
struct nfs4_sequence_res seq_res;
struct nfs_pathconf *pathconf;
};
struct nfs4_readdir_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
u64 cookie;
nfs4_verifier verifier;
u32 count;
struct page ** pages; /* zero-copy data */
unsigned int pgbase; /* zero-copy data */
const u32 * bitmask;
bool plus;
};
struct nfs4_readdir_res {
struct nfs4_sequence_res seq_res;
nfs4_verifier verifier;
unsigned int pgbase;
};
struct nfs4_readlink {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
unsigned int pgbase;
unsigned int pglen; /* zero-copy data */
struct page ** pages; /* zero-copy data */
};
struct nfs4_readlink_res {
struct nfs4_sequence_res seq_res;
};
struct nfs4_setclientid {
const nfs4_verifier * sc_verifier;
u32 sc_prog;
unsigned int sc_netid_len;
char sc_netid[RPCBIND_MAXNETIDLEN + 1];
unsigned int sc_uaddr_len;
char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
struct nfs_client *sc_clnt;
struct rpc_cred *sc_cred;
};
struct nfs4_setclientid_res {
u64 clientid;
nfs4_verifier confirm;
};
struct nfs4_statfs_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_statfs_res {
struct nfs4_sequence_res seq_res;
struct nfs_fsstat *fsstat;
};
struct nfs4_server_caps_arg {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fhandle;
const u32 * bitmask;
};
struct nfs4_server_caps_res {
struct nfs4_sequence_res seq_res;
u32 attr_bitmask[3];
u32 exclcreat_bitmask[3];
u32 acl_bitmask;
u32 has_links;
u32 has_symlinks;
u32 fh_expire_type;
u32 case_insensitive;
u32 case_preserving;
};
#define NFS4_PATHNAME_MAXCOMPONENTS 512
struct nfs4_pathname {
unsigned int ncomponents;
struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
};
#define NFS4_FS_LOCATION_MAXSERVERS 10
struct nfs4_fs_location {
unsigned int nservers;
struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
struct nfs4_pathname rootpath;
};
#define NFS4_FS_LOCATIONS_MAXENTRIES 10
struct nfs4_fs_locations {
struct nfs_fattr fattr;
const struct nfs_server *server;
struct nfs4_pathname fs_path;
int nlocations;
struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
};
struct nfs4_fs_locations_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *dir_fh;
NFS: Add method to retrieve fs_locations during migration recovery The nfs4_proc_fs_locations() function is invoked during referral processing to perform a GETATTR(fs_locations) on an object's parent directory in order to discover the target of the referral. It performs a LOOKUP in the compound, so the client needs to know the parent's file handle a priori. Unfortunately this function is not adequate for handling migration recovery. We need to probe fs_locations information on an FSID, but there's no parent directory available for many operations that can return NFS4ERR_MOVED. Another subtlety: recovering from NFS4ERR_LEASE_MOVED is a process of walking over a list of known FSIDs that reside on the server, and probing whether they have migrated. Once the server has detected that the client has probed all migrated file systems, it stops returning NFS4ERR_LEASE_MOVED. A minor version zero server needs to know what client ID is requesting fs_locations information so it can clear the flag that forces it to continue returning NFS4ERR_LEASE_MOVED. This flag is set per client ID and per FSID. However, the client ID is not an argument of either the PUTFH or GETATTR operations. Later minor versions have client ID information embedded in the compound's SEQUENCE operation. Therefore, by convention, minor version zero clients send a RENEW operation in the same compound as the GETATTR(fs_locations), since RENEW's one argument is a clientid4. This allows a minor version zero server to identify correctly the client that is probing for a migration. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-17 22:12:50 +04:00
const struct nfs_fh *fh;
const struct qstr *name;
struct page *page;
const u32 *bitmask;
NFS: Add method to retrieve fs_locations during migration recovery The nfs4_proc_fs_locations() function is invoked during referral processing to perform a GETATTR(fs_locations) on an object's parent directory in order to discover the target of the referral. It performs a LOOKUP in the compound, so the client needs to know the parent's file handle a priori. Unfortunately this function is not adequate for handling migration recovery. We need to probe fs_locations information on an FSID, but there's no parent directory available for many operations that can return NFS4ERR_MOVED. Another subtlety: recovering from NFS4ERR_LEASE_MOVED is a process of walking over a list of known FSIDs that reside on the server, and probing whether they have migrated. Once the server has detected that the client has probed all migrated file systems, it stops returning NFS4ERR_LEASE_MOVED. A minor version zero server needs to know what client ID is requesting fs_locations information so it can clear the flag that forces it to continue returning NFS4ERR_LEASE_MOVED. This flag is set per client ID and per FSID. However, the client ID is not an argument of either the PUTFH or GETATTR operations. Later minor versions have client ID information embedded in the compound's SEQUENCE operation. Therefore, by convention, minor version zero clients send a RENEW operation in the same compound as the GETATTR(fs_locations), since RENEW's one argument is a clientid4. This allows a minor version zero server to identify correctly the client that is probing for a migration. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-17 22:12:50 +04:00
clientid4 clientid;
unsigned char migration:1, renew:1;
};
struct nfs4_fs_locations_res {
struct nfs4_sequence_res seq_res;
struct nfs4_fs_locations *fs_locations;
NFS: Add method to retrieve fs_locations during migration recovery The nfs4_proc_fs_locations() function is invoked during referral processing to perform a GETATTR(fs_locations) on an object's parent directory in order to discover the target of the referral. It performs a LOOKUP in the compound, so the client needs to know the parent's file handle a priori. Unfortunately this function is not adequate for handling migration recovery. We need to probe fs_locations information on an FSID, but there's no parent directory available for many operations that can return NFS4ERR_MOVED. Another subtlety: recovering from NFS4ERR_LEASE_MOVED is a process of walking over a list of known FSIDs that reside on the server, and probing whether they have migrated. Once the server has detected that the client has probed all migrated file systems, it stops returning NFS4ERR_LEASE_MOVED. A minor version zero server needs to know what client ID is requesting fs_locations information so it can clear the flag that forces it to continue returning NFS4ERR_LEASE_MOVED. This flag is set per client ID and per FSID. However, the client ID is not an argument of either the PUTFH or GETATTR operations. Later minor versions have client ID information embedded in the compound's SEQUENCE operation. Therefore, by convention, minor version zero clients send a RENEW operation in the same compound as the GETATTR(fs_locations), since RENEW's one argument is a clientid4. This allows a minor version zero server to identify correctly the client that is probing for a migration. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-17 22:12:50 +04:00
unsigned char migration:1, renew:1;
};
struct nfs4_secinfo4 {
u32 flavor;
struct rpcsec_gss_info flavor_info;
};
struct nfs4_secinfo_flavors {
unsigned int num_flavors;
NFS: Replace zero-length array with flexible-array The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] sizeof(flexible-array-member) triggers a warning because flexible array members have incomplete type[1]. There are some instances of code in which the sizeof operator is being incorrectly/erroneously applied to zero-length arrays and the result is zero. Such instances may be hiding some bugs. So, this work (flexible-array member conversions) will also help to get completely rid of those sorts of issues. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-05-07 22:02:23 +03:00
struct nfs4_secinfo4 flavors[];
};
struct nfs4_secinfo_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *dir_fh;
const struct qstr *name;
};
struct nfs4_secinfo_res {
struct nfs4_sequence_res seq_res;
struct nfs4_secinfo_flavors *flavors;
};
struct nfs4_fsid_present_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fh;
clientid4 clientid;
unsigned char renew:1;
};
struct nfs4_fsid_present_res {
struct nfs4_sequence_res seq_res;
struct nfs_fh *fh;
unsigned char renew:1;
};
#endif /* CONFIG_NFS_V4 */
struct nfstime4 {
u64 seconds;
u32 nseconds;
};
#ifdef CONFIG_NFS_V4_1
struct pnfs_commit_bucket {
struct list_head written;
struct list_head committing;
struct pnfs_layout_segment *lseg;
struct nfs_writeverf direct_verf;
};
struct pnfs_commit_array {
struct list_head cinfo_list;
struct list_head lseg_list;
struct pnfs_layout_segment *lseg;
struct rcu_head rcu;
refcount_t refcount;
unsigned int nbuckets;
struct pnfs_commit_bucket buckets[];
};
struct pnfs_ds_commit_info {
struct list_head commits;
unsigned int nwritten;
unsigned int ncommitting;
const struct pnfs_commit_ops *ops;
};
struct nfs41_state_protection {
u32 how;
struct nfs4_op_map enforce;
struct nfs4_op_map allow;
};
struct nfs41_exchange_id_args {
struct nfs_client *client;
nfs4_verifier verifier;
u32 flags;
struct nfs41_state_protection state_protect;
};
struct nfs41_server_owner {
uint64_t minor_id;
uint32_t major_id_sz;
char major_id[NFS4_OPAQUE_LIMIT];
};
struct nfs41_server_scope {
uint32_t server_scope_sz;
char server_scope[NFS4_OPAQUE_LIMIT];
};
struct nfs41_impl_id {
char domain[NFS4_OPAQUE_LIMIT + 1];
char name[NFS4_OPAQUE_LIMIT + 1];
struct nfstime4 date;
};
#define MAX_BIND_CONN_TO_SESSION_RETRIES 3
struct nfs41_bind_conn_to_session_args {
struct nfs_client *client;
struct nfs4_sessionid sessionid;
u32 dir;
bool use_conn_in_rdma_mode;
int retries;
};
struct nfs41_bind_conn_to_session_res {
struct nfs4_sessionid sessionid;
u32 dir;
bool use_conn_in_rdma_mode;
};
struct nfs41_exchange_id_res {
u64 clientid;
u32 seqid;
u32 flags;
struct nfs41_server_owner *server_owner;
struct nfs41_server_scope *server_scope;
struct nfs41_impl_id *impl_id;
struct nfs41_state_protection state_protect;
};
nfs41: create_session operation Implement the create_session operation conforming to http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26 Set the real fore channel max operations to preserve server resources. Note: If the server returns < NFS4_MAX_OPS, the client will very soon get an NFS4ERR_TOO_MANY_OPS. A later patch will handle this. Set the max_rqst_sz and max_resp_sz to PAGE_SIZE - we preallocate the buffers. Set the back channel max_resp_sz_cached to zero to force the client to always set csa_cachethis to FALSE because the current implementation of the back channel DRC only supports caching the CB_SEQUENCE operation. The client back channel server supports one slot, and desires 2 operations per compound. Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Andy Adamson<andros@umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: remove extraneous rpc_clnt pointer] Use the struct nfs_client cl_rpcclient. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: nfs4_init_channel_attrs, just use nfs41_create_session_args] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use rsize and wsize for session channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set channel max operations] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set back channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: obliterate nfs4_adjust_channel_attrs] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: have create_session work on nfs_client] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: move CONFIG_NFS_V4_1 endif] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: pass *session in seq_args and seq_res] [moved nfs4_init_slot_table definition here] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use kcalloc to allocate slot table] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> [nfs41: fix Xcode_create_session's xdr Xcoding pointer type] [nfs41: refactor decoding of channel attributes] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
2009-04-01 17:22:31 +04:00
struct nfs41_create_session_args {
struct nfs_client *client;
u64 clientid;
uint32_t seqid;
nfs41: create_session operation Implement the create_session operation conforming to http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26 Set the real fore channel max operations to preserve server resources. Note: If the server returns < NFS4_MAX_OPS, the client will very soon get an NFS4ERR_TOO_MANY_OPS. A later patch will handle this. Set the max_rqst_sz and max_resp_sz to PAGE_SIZE - we preallocate the buffers. Set the back channel max_resp_sz_cached to zero to force the client to always set csa_cachethis to FALSE because the current implementation of the back channel DRC only supports caching the CB_SEQUENCE operation. The client back channel server supports one slot, and desires 2 operations per compound. Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Andy Adamson<andros@umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: remove extraneous rpc_clnt pointer] Use the struct nfs_client cl_rpcclient. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: nfs4_init_channel_attrs, just use nfs41_create_session_args] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use rsize and wsize for session channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set channel max operations] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set back channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: obliterate nfs4_adjust_channel_attrs] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: have create_session work on nfs_client] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: move CONFIG_NFS_V4_1 endif] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: pass *session in seq_args and seq_res] [moved nfs4_init_slot_table definition here] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use kcalloc to allocate slot table] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> [nfs41: fix Xcode_create_session's xdr Xcoding pointer type] [nfs41: refactor decoding of channel attributes] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
2009-04-01 17:22:31 +04:00
uint32_t flags;
uint32_t cb_program;
struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
struct nfs4_channel_attrs bc_attrs; /* Back Channel */
};
struct nfs41_create_session_res {
struct nfs4_sessionid sessionid;
uint32_t seqid;
uint32_t flags;
struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
struct nfs4_channel_attrs bc_attrs; /* Back Channel */
nfs41: create_session operation Implement the create_session operation conforming to http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26 Set the real fore channel max operations to preserve server resources. Note: If the server returns < NFS4_MAX_OPS, the client will very soon get an NFS4ERR_TOO_MANY_OPS. A later patch will handle this. Set the max_rqst_sz and max_resp_sz to PAGE_SIZE - we preallocate the buffers. Set the back channel max_resp_sz_cached to zero to force the client to always set csa_cachethis to FALSE because the current implementation of the back channel DRC only supports caching the CB_SEQUENCE operation. The client back channel server supports one slot, and desires 2 operations per compound. Signed-off-by: Ricardo Labiaga <ricardo.labiaga@netapp.com> Signed-off-by: Andy Adamson<andros@umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: remove extraneous rpc_clnt pointer] Use the struct nfs_client cl_rpcclient. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: nfs4_init_channel_attrs, just use nfs41_create_session_args] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use rsize and wsize for session channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set channel max operations] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: set back channel attributes] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: obliterate nfs4_adjust_channel_attrs] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: have create_session work on nfs_client] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: move CONFIG_NFS_V4_1 endif] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: pass *session in seq_args and seq_res] [moved nfs4_init_slot_table definition here] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfs41: use kcalloc to allocate slot table] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> [nfs41: fix Xcode_create_session's xdr Xcoding pointer type] [nfs41: refactor decoding of channel attributes] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
2009-04-01 17:22:31 +04:00
};
struct nfs41_reclaim_complete_args {
struct nfs4_sequence_args seq_args;
/* In the future extend to include curr_fh for use with migration */
unsigned char one_fs:1;
};
struct nfs41_reclaim_complete_res {
struct nfs4_sequence_res seq_res;
};
#define SECINFO_STYLE_CURRENT_FH 0
#define SECINFO_STYLE_PARENT 1
struct nfs41_secinfo_no_name_args {
struct nfs4_sequence_args seq_args;
int style;
};
struct nfs41_test_stateid_args {
struct nfs4_sequence_args seq_args;
nfs4_stateid *stateid;
};
struct nfs41_test_stateid_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
};
struct nfs41_free_stateid_args {
struct nfs4_sequence_args seq_args;
nfs4_stateid stateid;
};
struct nfs41_free_stateid_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
};
#else
struct pnfs_ds_commit_info {
};
#endif /* CONFIG_NFS_V4_1 */
#ifdef CONFIG_NFS_V4_2
struct nfs42_falloc_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *falloc_fh;
nfs4_stateid falloc_stateid;
u64 falloc_offset;
u64 falloc_length;
const u32 *falloc_bitmask;
};
struct nfs42_falloc_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
struct nfs_fattr *falloc_fattr;
const struct nfs_server *falloc_server;
};
struct nfs42_copy_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *src_fh;
nfs4_stateid src_stateid;
u64 src_pos;
struct nfs_fh *dst_fh;
nfs4_stateid dst_stateid;
u64 dst_pos;
u64 count;
bool sync;
struct nl4_server *cp_src;
};
struct nfs42_write_res {
nfs4_stateid stateid;
u64 count;
struct nfs_writeverf verifier;
};
struct nfs42_copy_res {
struct nfs4_sequence_res seq_res;
struct nfs42_write_res write_res;
bool consecutive;
bool synchronous;
struct nfs_commitres commit_res;
};
struct nfs42_offload_status_args {
struct nfs4_sequence_args osa_seq_args;
struct nfs_fh *osa_src_fh;
nfs4_stateid osa_stateid;
};
struct nfs42_offload_status_res {
struct nfs4_sequence_res osr_seq_res;
uint64_t osr_count;
int osr_status;
};
struct nfs42_copy_notify_args {
struct nfs4_sequence_args cna_seq_args;
struct nfs_fh *cna_src_fh;
nfs4_stateid cna_src_stateid;
struct nl4_server cna_dst;
};
struct nfs42_copy_notify_res {
struct nfs4_sequence_res cnr_seq_res;
struct nfstime4 cnr_lease_time;
nfs4_stateid cnr_stateid;
struct nl4_server cnr_src;
};
struct nfs42_seek_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *sa_fh;
nfs4_stateid sa_stateid;
u64 sa_offset;
u32 sa_what;
};
struct nfs42_seek_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
u32 sr_eof;
u64 sr_offset;
};
struct nfs42_setxattrargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
const char *xattr_name;
u32 xattr_flags;
size_t xattr_len;
struct page **xattr_pages;
};
struct nfs42_setxattrres {
struct nfs4_sequence_res seq_res;
struct nfs4_change_info cinfo;
};
struct nfs42_getxattrargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
const char *xattr_name;
size_t xattr_len;
struct page **xattr_pages;
};
struct nfs42_getxattrres {
struct nfs4_sequence_res seq_res;
size_t xattr_len;
};
struct nfs42_listxattrsargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
u32 count;
u64 cookie;
struct page **xattr_pages;
};
struct nfs42_listxattrsres {
struct nfs4_sequence_res seq_res;
struct page *scratch;
void *xattr_buf;
size_t xattr_len;
u64 cookie;
bool eof;
size_t copied;
};
struct nfs42_removexattrargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
const char *xattr_name;
};
struct nfs42_removexattrres {
struct nfs4_sequence_res seq_res;
struct nfs4_change_info cinfo;
};
#endif /* CONFIG_NFS_V4_2 */
struct nfs_page;
#define NFS_PAGEVEC_SIZE (8U)
struct nfs_page_array {
struct page **pagevec;
unsigned int npages; /* Max length of pagevec */
struct page *page_array[NFS_PAGEVEC_SIZE];
};
/* used as flag bits in nfs_pgio_header */
enum {
NFS_IOHDR_ERROR = 0,
NFS_IOHDR_EOF,
NFS_IOHDR_REDO,
NFS_IOHDR_STAT,
NFS_IOHDR_RESEND_PNFS,
NFS_IOHDR_RESEND_MDS,
};
struct nfs_io_completion;
struct nfs_pgio_header {
struct inode *inode;
const struct cred *cred;
struct list_head pages;
struct nfs_page *req;
struct nfs_writeverf verf; /* Used for writes */
fmode_t rw_mode;
struct pnfs_layout_segment *lseg;
loff_t io_start;
const struct rpc_call_ops *mds_ops;
void (*release) (struct nfs_pgio_header *hdr);
const struct nfs_pgio_completion_ops *completion_ops;
const struct nfs_rw_ops *rw_ops;
struct nfs_io_completion *io_completion;
struct nfs_direct_req *dreq;
int pnfs_error;
int error; /* merge with pnfs_error */
unsigned int good_bytes; /* boundary of good data */
unsigned long flags;
/*
* rpc data
*/
struct rpc_task task;
struct nfs_fattr fattr;
struct nfs_pgio_args args; /* argument struct */
struct nfs_pgio_res res; /* result struct */
unsigned long timestamp; /* For lease renewal */
int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
__u64 mds_offset; /* Filelayout dense stripe */
struct nfs_page_array page_array;
struct nfs_client *ds_clp; /* pNFS data server */
u32 ds_commit_idx; /* ds index if ds_clp is set */
u32 pgio_mirror_idx;/* mirror index in pgio layer */
};
struct nfs_mds_commit_info {
atomic_t rpcs_out;
atomic_long_t ncommit;
struct list_head list;
};
struct nfs_commit_info;
struct nfs_commit_data;
struct nfs_inode;
struct nfs_commit_completion_ops {
void (*completion) (struct nfs_commit_data *data);
void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
};
struct nfs_commit_info {
struct inode *inode; /* Needed for inode->i_lock */
struct nfs_mds_commit_info *mds;
struct pnfs_ds_commit_info *ds;
struct nfs_direct_req *dreq; /* O_DIRECT request */
const struct nfs_commit_completion_ops *completion_ops;
};
struct nfs_commit_data {
struct rpc_task task;
struct inode *inode;
const struct cred *cred;
struct nfs_fattr fattr;
struct nfs_writeverf verf;
struct list_head pages; /* Coalesced requests we wish to flush */
struct list_head list; /* lists of struct nfs_write_data */
struct nfs_direct_req *dreq; /* O_DIRECT request */
struct nfs_commitargs args; /* argument struct */
struct nfs_commitres res; /* result struct */
struct nfs_open_context *context;
struct pnfs_layout_segment *lseg;
struct nfs_client *ds_clp; /* pNFS data server */
int ds_commit_index;
loff_t lwb;
const struct rpc_call_ops *mds_ops;
const struct nfs_commit_completion_ops *completion_ops;
int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
unsigned long flags;
};
struct nfs_pgio_completion_ops {
void (*error_cleanup)(struct list_head *head, int);
void (*init_hdr)(struct nfs_pgio_header *hdr);
void (*completion)(struct nfs_pgio_header *hdr);
void (*reschedule_io)(struct nfs_pgio_header *hdr);
};
struct nfs_unlinkdata {
struct nfs_removeargs args;
struct nfs_removeres res;
struct dentry *dentry;
wait_queue_head_t wq;
const struct cred *cred;
struct nfs_fattr dir_attr;
long timeout;
};
struct nfs_renamedata {
struct nfs_renameargs args;
struct nfs_renameres res;
const struct cred *cred;
struct inode *old_dir;
struct dentry *old_dentry;
struct nfs_fattr old_fattr;
struct inode *new_dir;
struct dentry *new_dentry;
struct nfs_fattr new_fattr;
void (*complete)(struct rpc_task *, struct nfs_renamedata *);
long timeout;
bool cancelled;
};
struct nfs_access_entry;
struct nfs_client;
struct rpc_timeout;
struct nfs_subversion;
struct nfs_mount_info;
struct nfs_client_initdata;
struct nfs_pageio_descriptor;
NFS: Add fs_context support. Add filesystem context support to NFS, parsing the options in advance and attaching the information to struct nfs_fs_context. The highlights are: (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context. This structure represents NFS's superblock config. (*) Make use of the VFS's parsing support to split comma-separated lists (*) Pin the NFS protocol module in the nfs_fs_context. (*) Attach supplementary error information to fs_context. This has the downside that these strings must be static and can't be formatted. (*) Remove the auxiliary file_system_type structs since the information necessary can be conveyed in the nfs_fs_context struct instead. (*) Root mounts are made by duplicating the config for the requested mount so as to have the same parameters. Submounts pick up their parameters from the parent superblock. [AV -- retrans is u32, not string] [SM -- Renamed cfg to ctx in a few functions in an earlier patch] [SM -- Moved fs_context mount option parsing to an earlier patch] [SM -- Moved fs_context error logging to a later patch] [SM -- Fixed printks in nfs4_try_get_tree() and nfs4_get_referral_tree()] [SM -- Added is_remount_fc() helper] [SM -- Deferred some refactoring to a later patch] [SM -- Fixed referral mounts, which were broken in the original patch] [SM -- Fixed leak of nfs_fattr when fs_context is freed] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-12-10 15:31:13 +03:00
struct fs_context;
/*
* RPC procedure vector for NFSv2/NFSv3 demuxing
*/
struct nfs_rpc_ops {
u32 version; /* Protocol version */
const struct dentry_operations *dentry_ops;
const struct inode_operations *dir_inode_ops;
const struct inode_operations *file_inode_ops;
const struct file_operations *file_ops;
const struct nlmclnt_operations *nlmclnt_ops;
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
NFS: Add fs_context support. Add filesystem context support to NFS, parsing the options in advance and attaching the information to struct nfs_fs_context. The highlights are: (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context. This structure represents NFS's superblock config. (*) Make use of the VFS's parsing support to split comma-separated lists (*) Pin the NFS protocol module in the nfs_fs_context. (*) Attach supplementary error information to fs_context. This has the downside that these strings must be static and can't be formatted. (*) Remove the auxiliary file_system_type structs since the information necessary can be conveyed in the nfs_fs_context struct instead. (*) Root mounts are made by duplicating the config for the requested mount so as to have the same parameters. Submounts pick up their parameters from the parent superblock. [AV -- retrans is u32, not string] [SM -- Renamed cfg to ctx in a few functions in an earlier patch] [SM -- Moved fs_context mount option parsing to an earlier patch] [SM -- Moved fs_context error logging to a later patch] [SM -- Fixed printks in nfs4_try_get_tree() and nfs4_get_referral_tree()] [SM -- Added is_remount_fc() helper] [SM -- Deferred some refactoring to a later patch] [SM -- Fixed referral mounts, which were broken in the original patch] [SM -- Fixed leak of nfs_fattr when fs_context is freed] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-12-10 15:31:13 +03:00
int (*submount) (struct fs_context *, struct nfs_server *);
int (*try_get_tree) (struct fs_context *);
int (*getattr) (struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *, struct inode *);
int (*setattr) (struct dentry *, struct nfs_fattr *,
struct iattr *);
int (*lookup) (struct inode *, struct dentry *,
struct nfs_fh *, struct nfs_fattr *);
int (*lookupp) (struct inode *, struct nfs_fh *,
struct nfs_fattr *);
int (*access) (struct inode *, struct nfs_access_entry *, const struct cred *);
int (*readlink)(struct inode *, struct page *, unsigned int,
unsigned int);
int (*create) (struct inode *, struct dentry *,
struct iattr *, int);
int (*remove) (struct inode *, struct dentry *);
void (*unlink_setup) (struct rpc_message *, struct dentry *, struct inode *);
void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
int (*unlink_done) (struct rpc_task *, struct inode *);
void (*rename_setup) (struct rpc_message *msg,
struct dentry *old_dentry,
struct dentry *new_dentry);
void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
int (*link) (struct inode *, struct inode *, const struct qstr *);
int (*symlink) (struct inode *, struct dentry *, struct page *,
unsigned int, struct iattr *);
int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
int (*rmdir) (struct inode *, const struct qstr *);
int (*readdir) (struct nfs_readdir_arg *, struct nfs_readdir_res *);
int (*mknod) (struct inode *, struct dentry *, struct iattr *,
dev_t);
int (*statfs) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsstat *);
int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
int (*pathconf) (struct nfs_server *, struct nfs_fh *,
struct nfs_pathconf *);
int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool);
int (*pgio_rpc_prepare)(struct rpc_task *,
struct nfs_pgio_header *);
void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *,
struct rpc_clnt **);
int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *,
struct rpc_clnt **);
void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
int (*lock)(struct file *, int, struct file_lock *);
int (*lock_check_bounds)(const struct file_lock *);
void (*clear_acl_cache)(struct inode *);
void (*close_context)(struct nfs_open_context *ctx, int);
struct inode * (*open_context) (struct inode *dir,
struct nfs_open_context *ctx,
int open_flags,
struct iattr *iattr,
int *);
int (*have_delegation)(struct inode *, fmode_t);
struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS Chris Worley reports: RIP: 0010:[<ffffffffa0245f80>] [<ffffffffa0245f80>] rpc_new_client+0x2a0/0x2e0 [sunrpc] RSP: 0018:ffff880158f6f548 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff880234f8bc00 RCX: 000000000000ea60 RDX: 0000000000074cc0 RSI: 000000000000ea60 RDI: ffff880234f8bcf0 RBP: ffff880158f6f588 R08: 000000000001ac80 R09: ffff880237003300 R10: ffff880201171000 R11: ffffea0000d75200 R12: ffffffffa03afc60 R13: ffff880230c18800 R14: 0000000000000000 R15: ffff880158f6f680 FS: 00007f0e32673740(0000) GS:ffff88023fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000008 CR3: 0000000234886000 CR4: 00000000001406e0 Stack: ffffffffa047a680 0000000000000000 ffff880158f6f598 ffff880158f6f680 ffff880158f6f680 ffff880234d11d00 ffff88023357f800 ffff880158f6f7d0 ffff880158f6f5b8 ffffffffa024660a ffff880158f6f5b8 ffffffffa02492ec Call Trace: [<ffffffffa024660a>] rpc_create_xprt+0x1a/0xb0 [sunrpc] [<ffffffffa02492ec>] ? xprt_create_transport+0x13c/0x240 [sunrpc] [<ffffffffa0246766>] rpc_create+0xc6/0x1a0 [sunrpc] [<ffffffffa038e695>] nfs_create_rpc_client+0xf5/0x140 [nfs] [<ffffffffa038f31a>] nfs_init_client+0x3a/0xd0 [nfs] [<ffffffffa038f22f>] nfs_get_client+0x25f/0x310 [nfs] [<ffffffffa025cef8>] ? rpc_ntop+0xe8/0x100 [sunrpc] [<ffffffffa047512c>] nfs3_set_ds_client+0xcc/0x100 [nfsv3] [<ffffffffa041fa10>] nfs4_pnfs_ds_connect+0x120/0x400 [nfsv4] [<ffffffffa03d41c7>] nfs4_ff_layout_prepare_ds+0xe7/0x330 [nfs_layout_flexfiles] [<ffffffffa03d1b1b>] ff_layout_pg_init_write+0xcb/0x280 [nfs_layout_flexfiles] [<ffffffffa03a14dc>] __nfs_pageio_add_request+0x12c/0x490 [nfs] [<ffffffffa03a1fa2>] nfs_pageio_add_request+0xc2/0x2a0 [nfs] [<ffffffffa03a0365>] ? nfs_pageio_init+0x75/0x120 [nfs] [<ffffffffa03a5b50>] nfs_do_writepage+0x120/0x270 [nfs] [<ffffffffa03a5d31>] nfs_writepage_locked+0x61/0xc0 [nfs] [<ffffffff813d4115>] ? __percpu_counter_add+0x55/0x70 [<ffffffffa03a6a9f>] nfs_wb_single_page+0xef/0x1c0 [nfs] [<ffffffff811ca4a3>] ? __dec_zone_page_state+0x33/0x40 [<ffffffffa0395b21>] nfs_launder_page+0x41/0x90 [nfs] [<ffffffff811baba0>] invalidate_inode_pages2_range+0x340/0x3a0 [<ffffffff811bac17>] invalidate_inode_pages2+0x17/0x20 [<ffffffffa039960e>] nfs_release+0x9e/0xb0 [nfs] [<ffffffffa0399570>] ? nfs_open+0x60/0x60 [nfs] [<ffffffffa0394dad>] nfs_file_release+0x3d/0x60 [nfs] [<ffffffff81226e6c>] __fput+0xdc/0x1e0 [<ffffffff81226fbe>] ____fput+0xe/0x10 [<ffffffff810bf2e4>] task_work_run+0xc4/0xe0 [<ffffffff810a4188>] do_exit+0x2e8/0xb30 [<ffffffff8102471c>] ? do_audit_syscall_entry+0x6c/0x70 [<ffffffff811464e6>] ? __audit_syscall_exit+0x1e6/0x280 [<ffffffff810a4a5f>] do_group_exit+0x3f/0xa0 [<ffffffff810a4ad4>] SyS_exit_group+0x14/0x20 [<ffffffff8179b76e>] system_call_fastpath+0x12/0x71 Which seems to be due to a call to utsname() when in a task exit context in order to determine the hostname to set in rpc_new_client(). In reality, what we want here is not the hostname of the current task, but the hostname that was used to set up the metadata server. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-06-22 21:13:12 +03:00
struct nfs_client *(*init_client) (struct nfs_client *,
const struct nfs_client_initdata *);
void (*free_client) (struct nfs_client *);
struct nfs_server *(*create_server)(struct fs_context *);
struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *, rpc_authflavor_t);
int (*discover_trunking)(struct nfs_server *, struct nfs_fh *);
void (*enable_swap)(struct inode *inode);
void (*disable_swap)(struct inode *inode);
};
/*
* NFS_CALL(getattr, inode, (fattr));
* into
* NFS_PROTO(inode)->getattr(fattr);
*/
#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
/*
* Function vectors etc. for the NFS client
*/
extern const struct nfs_rpc_ops nfs_v2_clientops;
extern const struct nfs_rpc_ops nfs_v3_clientops;
extern const struct nfs_rpc_ops nfs_v4_clientops;
extern const struct rpc_version nfs_version2;
extern const struct rpc_version nfs_version3;
extern const struct rpc_version nfs_version4;
extern const struct rpc_version nfsacl_version3;
extern const struct rpc_program nfsacl_program;
#endif