Roman Gushchin e33c267ab7 mm: shrinkers: provide shrinkers with names ... Currently shrinkers are anonymous objects. For debugging purposes they can be identified by count/scan function names, but it's not always useful: e.g. for superblock's shrinkers it's nice to have at least an idea of to which superblock the shrinker belongs. This commit adds names to shrinkers. register_shrinker() and prealloc_shrinker() functions are extended to take a format and arguments to master a name. In some cases it's not possible to determine a good name at the time when a shrinker is allocated. For such cases shrinker_debugfs_rename() is provided. The expected format is: <subsystem>-<shrinker_type>[:<instance>]-<id> For some shrinkers an instance can be encoded as (MAJOR:MINOR) pair. After this change the shrinker debugfs directory looks like: $ cd /sys/kernel/debug/shrinker/ $ ls dquota-cache-16 sb-devpts-28 sb-proc-47 sb-tmpfs-42 mm-shadow-18 sb-devtmpfs-5 sb-proc-48 sb-tmpfs-43 mm-zspool:zram0-34 sb-hugetlbfs-17 sb-pstore-31 sb-tmpfs-44 rcu-kfree-0 sb-hugetlbfs-33 sb-rootfs-2 sb-tmpfs-49 sb-aio-20 sb-iomem-12 sb-securityfs-6 sb-tracefs-13 sb-anon_inodefs-15 sb-mqueue-21 sb-selinuxfs-22 sb-xfs:vda1-36 sb-bdev-3 sb-nsfs-4 sb-sockfs-8 sb-zsmalloc-19 sb-bpf-32 sb-pipefs-14 sb-sysfs-26 thp-deferred_split-10 sb-btrfs:vda2-24 sb-proc-25 sb-tmpfs-1 thp-zero-9 sb-cgroup2-30 sb-proc-39 sb-tmpfs-27 xfs-buf:vda1-37 sb-configfs-23 sb-proc-41 sb-tmpfs-29 xfs-inodegc:vda1-38 sb-dax-11 sb-proc-45 sb-tmpfs-35 sb-debugfs-7 sb-proc-46 sb-tmpfs-40 [roman.gushchin@linux.dev: fix build warnings] Link: https://lkml.kernel.org/r/Yr+ZTnLb9lJk6fJO@castle Reported-by: kernel test robot <lkp@intel.com> Link: https://lkml.kernel.org/r/20220601032227.4076670-4-roman.gushchin@linux.dev Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Dave Chinner <dchinner@redhat.com> Cc: Hillf Danton <hdanton@sina.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2022-07-03 18:08:40 -07:00
..
9p	9p: fix EBADF errors in cached mode	2022-06-17 06:03:30 +09:00
adfs	fs: Convert block_read_full_page() to block_read_full_folio()	2022-05-09 16:21:44 -04:00
affs	affs: Convert affs to read_folio	2022-05-09 16:21:44 -04:00
afs	afs: Fix dynamic root getattr	2022-06-21 11:47:30 -05:00
autofs	…
befs	befs: Convert befs to read_folio	2022-05-09 16:21:45 -04:00
bfs	fs: Convert block_read_full_page() to block_read_full_folio()	2022-05-09 16:21:44 -04:00
btrfs	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
cachefiles	cachefiles: add tracepoints for on-demand read mode	2022-05-18 00:11:18 +08:00
ceph	netfs: Rename the netfs_io_request cleanup op and give it an op pointer	2022-06-10 20:55:21 +01:00
cifs	cifs: update cifs_ses::ip_addr after failover	2022-06-24 13:34:28 -05:00
coda	coda: Convert coda to read_folio	2022-05-09 16:21:45 -04:00
configfs	configfs: fix a race in configfs_{,un}register_subsystem()	2022-02-22 18:30:28 +01:00
cramfs	cramfs: Convert cramfs to read_folio	2022-05-09 16:21:45 -04:00
crypto	fscrypt: add new helper functions for test_dummy_encryption	2022-05-09 16:18:54 -07:00
debugfs	debugfs: Document that debugfs_create functions need not be error checked	2022-02-25 11:56:13 +01:00
devpts	fsnotify: fix fsnotify hooks in pseudo filesystems	2022-01-24 14:17:02 +01:00
dlm	dlm: use kref_put_lock in __put_lkb	2022-05-02 11:23:49 -05:00
ecryptfs	ecryptfs: Convert ecryptfs to read_folio	2022-05-09 16:21:45 -04:00
efivarfs	…
efs	efs: Convert efs symlinks to read_folio	2022-05-09 16:21:45 -04:00
erofs	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
exfat	exfat: use updated exfat_chain directly during renaming	2022-06-09 21:26:32 +09:00
exportfs	exportfs: support idmapped mounts	2022-04-28 16:31:10 +02:00
ext2	ext2: fix fs corruption when trying to remove a non-empty directory with IO error	2022-06-16 10:55:45 +02:00
ext4	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
f2fs	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
fat	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
freevxfs	SPDX changes for 5.19-rc1	2022-06-03 10:34:34 -07:00
fscache	fscache: remove FSCACHE_OLD_API Kconfig option	2022-04-08 23:54:37 +01:00
fuse	libnvdimm for 5.19	2022-05-27 15:49:30 -07:00
gfs2	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
hfs	fs: Change try_to_free_buffers() to take a folio	2022-05-09 23:12:34 -04:00
hfsplus	fs: Change try_to_free_buffers() to take a folio	2022-05-09 23:12:34 -04:00
hostfs	hostfs: Convert hostfs to read_folio	2022-05-09 16:21:45 -04:00
hpfs	hpfs: Convert symlinks to read_folio	2022-05-09 16:21:45 -04:00
hugetlbfs	hugetlbfs: zero partial pages during fallocate hole punch	2022-06-16 19:11:32 -07:00
iomap	Page cache changes for 5.19	2022-05-24 19:55:07 -07:00
isofs	isofs: Convert symlinks and zisofs to read_folio	2022-05-09 16:21:45 -04:00
jbd2	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
jffs2	This pull request contains fixes for JFFS2, UBI and UBIFS	2022-06-03 14:42:24 -07:00
jfs	JFS: One bug fix and some code cleanup	2022-05-27 15:59:21 -07:00
kernfs	kernfs: Separate kernfs_pr_cont_buf and rename_lock.	2022-05-19 19:37:06 +02:00
ksmbd	ksmbd: smbd: relax the count of sges required	2022-05-27 21:31:20 -05:00
lockd	NFSD: Move svc_serv_ops::svo_function into struct svc_serv	2022-02-28 10:26:40 -05:00
minix	fs: Convert block_read_full_page() to block_read_full_folio()	2022-05-09 16:21:44 -04:00
netfs	netfs: Rename the netfs_io_request cleanup op and give it an op pointer	2022-06-10 20:55:21 +01:00
nfs	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
nfs_common	…
nfsd	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
nilfs2	Page cache changes for 5.19	2022-05-24 19:55:07 -07:00
nls	…
notify	\n	2022-05-25 19:29:54 -07:00
ntfs	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
ntfs3	Ntfs3 for 5.19	2022-06-03 16:57:16 -07:00
ocfs2	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
omfs	fs: Convert block_read_full_page() to block_read_full_folio()	2022-05-09 16:21:44 -04:00
openpromfs	fs: allocate inode by using alloc_inode_sb()	2022-03-22 15:57:03 -07:00
orangefs	orangefs: Convert to free_folio	2022-05-09 23:12:53 -04:00
overlayfs	overlayfs update for 5.19	2022-05-30 11:19:16 -07:00
proc	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
pstore	pstore: Don't use semaphores in always-atomic-context code	2022-03-15 11:08:23 -07:00
qnx4	fs: Convert block_read_full_page() to block_read_full_folio()	2022-05-09 16:21:44 -04:00
qnx6	fs: Convert mpage_readpage to mpage_read_folio	2022-05-09 16:21:44 -04:00
quota	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
ramfs	Merge branch 'akpm' (patches from Andrew)	2021-11-09 10:11:53 -08:00
reiserfs	fs: Change try_to_free_buffers() to take a folio	2022-05-09 23:12:34 -04:00
romfs	romfs: Convert romfs to read_folio	2022-05-09 16:21:46 -04:00
smbfs_common	Add various fsctl structs	2022-05-23 20:24:12 -05:00
squashfs	Page cache changes for 5.19	2022-05-24 19:55:07 -07:00
sysfs	kobject: kobj_type: remove default_attrs	2022-04-05 15:39:19 +02:00
sysv	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
tracefs	tracefs: Fix syntax errors in comments	2022-06-17 19:01:28 -04:00
ubifs	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
udf	Page cache changes for 5.19	2022-05-24 19:55:07 -07:00
ufs	fs: Convert block_read_full_page() to block_read_full_folio()	2022-05-09 16:21:44 -04:00
unicode	kbuild: unify cmd_copy and cmd_shipped	2022-02-14 10:37:32 +09:00
vboxsf	vboxsf: Convert vboxsf to read_folio	2022-05-09 16:21:46 -04:00
verity	Page cache changes for 5.19	2022-05-24 19:55:07 -07:00
xfs	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
zonefs	zonefs: fix zonefs_iomap_begin() for reads	2022-06-08 19:13:55 +09:00
Kconfig	mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP*	2022-04-28 23:16:15 -07:00
Kconfig.binfmt	m68knommu: changes for linux 5.19	2022-05-30 10:56:18 -07:00
Makefile	Fix from Christoph Hellwig merging the CONFIG_UNICODE_UTF8_DATA into the	2022-02-01 11:13:24 -08:00
aio.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2022-04-01 19:57:03 -07:00
anon_inodes.c	…
attr.c	fs: account for group membership	2022-06-14 12:18:47 +02:00
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	revert "fs/binfmt_elf: use PT_LOAD p_align values for static PIE"	2022-04-15 14:49:56 -07:00
binfmt_elf_fdpic.c	coredump: Snapshot the vmas in do_coredump	2022-03-08 12:55:29 -06:00
binfmt_elf_test.c	binfmt_elf: Introduce KUnit test	2022-03-03 20:38:56 -08:00
binfmt_flat.c	binfmt_flat: Remove shared library support	2022-04-22 10:57:18 -07:00
binfmt_misc.c	Fix regression due to "fs: move binfmt_misc sysctl to its own file"	2022-02-09 09:50:02 -08:00
binfmt_script.c	…
buffer.c	fs: Convert drop_buffers() to use a folio	2022-05-09 23:12:34 -04:00
char_dev.c	…
compat_binfmt_elf.c	binfmt_elf: Introduce KUnit test	2022-03-03 20:38:56 -08:00
coredump.c	ptrace: Cleanups for v5.18	2022-03-28 17:29:53 -07:00
d_path.c	…
dax.c	libnvdimm for 5.19	2022-05-27 15:49:30 -07:00
dcache.c	mm: dcache: use kmem_cache_alloc_lru() to allocate dentry	2022-03-22 15:57:03 -07:00
direct-io.c	direct-io: remove random prefetches	2022-04-17 19:50:02 -06:00
drop_caches.c	…
eventfd.c	…
eventpoll.c	eventpoll: simplify sysctl declaration with register_sysctl()	2022-01-22 08:33:35 +02:00
exec.c	This set of changes updates init and user mode helper tasks to be	2022-06-03 16:03:05 -07:00
fcntl.c	VFS: add FMODE_CAN_ODIRECT file flag	2022-05-09 18:20:49 -07:00
fhandle.c	…
file.c	fix the breakage in close_fd_get_file() calling conventions change	2022-06-05 15:03:03 -04:00
file_table.c	Descriptor handling cleanups	2022-06-04 18:52:00 -07:00
filesystems.c	…
fs-writeback.c	writeback: Fix inode->i_io_list not be protected by inode->i_lock error	2022-06-06 09:54:30 +02:00
fs_context.c	vfs: fs_context: fix up param length parsing in legacy_parse_param	2022-01-18 09:23:19 +02:00
fs_parser.c	fs_parse: allow parameter value to be empty	2021-12-09 14:09:36 -05:00
fs_pin.c	…
fs_struct.c	…
fs_types.c	…
fsopen.c	uninline may_mount() and don't opencode it in fspick(2)/fsopen(2)	2022-05-19 23:25:10 -04:00
init.c	…
inode.c	writeback: Fix inode->i_io_list not be protected by inode->i_lock error	2022-06-06 09:54:30 +02:00
internal.h	Cleanups (and one fix) around struct mount handling.	2022-06-04 19:00:05 -07:00
io-wq.c	io-wq: use __set_notify_signal() to wake workers	2022-04-30 08:39:54 -06:00
io-wq.h	io_uring: add support for IORING_ASYNC_CANCEL_ALL	2022-04-24 18:18:18 -06:00
io_uring.c	io_uring: use original request task for inflight tracking	2022-06-23 11:06:43 -06:00
ioctl.c	Fixes for 5.18-rc1:	2022-04-01 19:35:56 -07:00
kernel_read_file.c	…
libfs.c	fs: Convert simple_readpage to simple_read_folio	2022-05-09 16:21:44 -04:00
locks.c	fs/lock: add 2 callbacks to lock_manager_operations to resolve conflict	2022-05-19 12:25:39 -04:00
mbcache.c	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
mount.h	…
mpage.c	fs: Change try_to_free_buffers() to take a folio	2022-05-09 23:12:34 -04:00
namei.c	Several cleanups in fs/namei.c.	2022-06-04 19:07:15 -07:00
namespace.c	Cleanups (and one fix) around struct mount handling.	2022-06-04 19:00:05 -07:00
no-block.c	…
nsfs.c	…
open.c	RISC-V Patches for the 5.19 Merge Window, Part 1	2022-05-31 14:10:54 -07:00
pipe.c	Not a lot of material this cycle. Many singleton patches against various	2022-05-27 11:22:03 -07:00
pnode.c	…
pnode.h	…
posix_acl.c	fs: fix acl translation	2022-04-19 10:19:02 -07:00
proc_namespace.c	fs: add is_idmapped_mnt() helper	2021-12-03 18:44:06 +01:00
read_write.c	riscv: compat: syscall: Add compat_sys_call_table implementation	2022-04-26 13:36:25 -07:00
readdir.c	…
remap_range.c	Filesystem folio changes for 5.18	2022-03-22 18:26:56 -07:00
select.c	select: Fix indefinitely sleeping task in poll_schedule_timeout()	2022-01-11 09:03:05 -08:00
seq_file.c	rxrpc: Fix locking issue	2022-05-22 21:03:01 +01:00
signalfd.c	Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2022-01-17 05:49:30 +02:00
splice.c	mm: Convert remove_mapping() to take a folio	2022-03-21 12:59:01 -04:00
stack.c	…
stat.c	RISC-V Patches for the 5.19 Merge Window, Part 1	2022-05-31 14:10:54 -07:00
statfs.c	…
super.c	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
sync.c	riscv: compat: syscall: Add compat_sys_call_table implementation	2022-04-26 13:36:25 -07:00
sysctls.c	fs: move namespace sysctls and declare fs base directory	2022-01-22 08:33:36 +02:00
timerfd.c	…
userfaultfd.c	mm/uffd: enable write protection for shmem & hugetlbfs	2022-05-13 07:20:11 -07:00
utimes.c	…
xattr.c	fs: split off do_getxattr from getxattr	2022-04-24 18:18:37 -06:00