Richard W.M. Jones 6b1bdb56b1 fuse: allow fallocate(FALLOC_FL_ZERO_RANGE) ... The current fuse module filters out fallocate(FALLOC_FL_ZERO_RANGE) returning -EOPNOTSUPP. libnbd's nbdfuse would like to translate FALLOC_FL_ZERO_RANGE requests into the NBD command NBD_CMD_WRITE_ZEROES which allows NBD servers that support it to do zeroing efficiently. This commit treats this flag exactly like FALLOC_FL_PUNCH_HOLE. A way to test this, requiring fuse >= 3, nbdkit >= 1.8 and the latest nbdfuse from https://gitlab.com/nbdkit/libnbd/-/tree/master/fuse is to create a file containing some data and "mirror" it to a fuse file: $ dd if=/dev/urandom of=disk.img bs=1M count=1 $ nbdkit file disk.img $ touch mirror.img $ nbdfuse mirror.img nbd://localhost & (mirror.img -> nbdfuse -> NBD over loopback -> nbdkit -> disk.img) You can then run commands such as: $ fallocate -z -o 1024 -l 1024 mirror.img and check that the content of the original file ("disk.img") stays synchronized. To show NBD commands, export LIBNBD_DEBUG=1 before running nbdfuse. To clean up: $ fusermount3 -u mirror.img $ killall nbdkit Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>		2021-06-22 09:15:36 +02:00
..
9p	9p for 5.13-rc1	2021-05-07 11:18:52 -07:00
adfs	…
affs	…
afs	afs: Fix the nlink handling of dir-over-dir rename	2021-05-27 06:23:58 -10:00
autofs	…
befs	…
bfs	…
btrfs	for-5.13-rc4-tag	2021-06-03 11:37:14 -07:00
cachefiles	…
ceph	Notable items here are a series to take advantage of David Howells'	2021-05-06 10:27:02 -07:00
cifs	cifs: change format of CIFS_FULL_KEY_DUMP ioctl	2021-05-27 15:26:32 -05:00
coda	coda: fix reference counting in coda_file_mmap error path	2021-04-23 14:42:39 -07:00
configfs	treewide: remove editor modelines and cruft	2021-05-07 00:26:34 -07:00
cramfs	…
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2021-04-26 08:51:23 -07:00
debugfs	debugfs: fix security_locked_down() call for SELinux	2021-05-18 18:05:59 +02:00
devpts	…
dlm	…
ecryptfs	fs: ecryptfs: remove BUG_ON from crypt_scatterlist	2021-05-13 18:32:26 +02:00
efivarfs	…
efs	…
erofs	erofs: fix 1 lcluster-sized pcluster for big pcluster	2021-05-13 15:58:46 +08:00
exfat	exfat: speed up iterate/lookup by fixing start point of traversing cluster chain	2021-04-27 20:45:07 +09:00
exportfs	…
ext2	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-05-02 09:14:01 -07:00
ext4	Miscellaneous ext4 bug fixes for v5.13	2021-06-06 14:24:13 -07:00
f2fs	f2fs: return EINVAL for hole cases in swap file	2021-05-12 07:38:00 -07:00
fat	fs: fat: fix spelling typo of values	2021-05-07 00:26:34 -07:00
freevxfs	…
fscache	…
fuse	fuse: allow fallocate(FALLOC_FL_ZERO_RANGE)	2021-06-22 09:15:36 +02:00
gfs2	Revert "gfs2: Fix mmap locking for write faults"	2021-06-01 23:16:42 +02:00
hfs	…
hfsplus	hfsplus: prevent corruption in shrinking truncate	2021-05-14 19:41:32 -07:00
hostfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-05-02 09:14:01 -07:00
hpfs	hpfs: replace one-element array with flexible-array member	2021-05-06 19:24:13 -07:00
hugetlbfs	userfaultfd: hugetlbfs: fix new flag usage in error path	2021-05-22 15:09:07 -10:00
iomap	mm/filemap: fix readahead return types	2021-05-14 19:41:32 -07:00
isofs	isofs: fix fall-through warnings for Clang	2021-05-06 19:24:13 -07:00
jbd2	…
jffs2	This pull request contains changes for JFFS2, UBI and UBIFS	2021-05-04 18:08:40 -07:00
jfs	…
kernfs	…
lockd	…
minix	…
netfs	netfs: Make CONFIG_NETFS_SUPPORT auto-selected rather than manual	2021-05-25 13:48:04 +01:00
nfs	nfs: Remove trailing semicolon in macros	2021-05-27 09:19:33 -04:00
nfs_common	…
nfsd	NFS client updates for Linux 5.13	2021-05-07 11:23:41 -07:00
nilfs2	Merge branch 'akpm' (patches from Andrew)	2021-05-07 00:34:51 -07:00
nls	…
notify	fanotify: fix permission model of unprivileged group	2021-05-25 12:21:14 +02:00
ntfs	…
ocfs2	ocfs2: fix data corruption by fallocate	2021-06-05 08:58:12 -07:00
omfs	…
openpromfs	…
orangefs	orangefs: leave files in the page cache for a few micro seconds at least	2021-04-29 08:06:05 -04:00
overlayfs	overlayfs update for 5.13	2021-04-30 15:17:08 -07:00
proc	proc: Check /proc/$pid/attr/ writes against file opener	2021-05-25 10:24:41 -10:00
pstore	printk changes for 5.13	2021-04-27 18:09:44 -07:00
qnx4	…
qnx6	…
quota	quota: Use 'hlist_for_each_entry' to simplify code	2021-05-10 16:27:49 +02:00
ramfs	…
reiserfs	treewide: remove editor modelines and cruft	2021-05-07 00:26:34 -07:00
romfs	…
squashfs	squashfs: fix divide error in calculate_skip()	2021-05-14 19:41:32 -07:00
sysfs	…
sysv	…
tracefs	…
ubifs	This pull request contains changes for JFFS2, UBI and UBIFS	2021-05-04 18:08:40 -07:00
udf	…
ufs	…
unicode	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
vboxsf	…
verity	…
xfs	xfs: bunmapi has unnecessary AG lock ordering issues	2021-05-27 08:11:24 -07:00
zonefs	\n	2021-04-29 11:06:13 -07:00
Kconfig	NFS client updates for Linux 5.13	2021-05-07 11:23:41 -07:00
Kconfig.binfmt	…
Makefile	…
aio.c	Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"	2021-04-30 11:20:39 -07:00
anon_inodes.c	…
attr.c	…
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	…
binfmt_elf_fdpic.c	…
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	…
binfmt_script.c	…
block_dev.c	block-5.13-2021-05-22	2021-05-22 07:40:34 -10:00
buffer.c	Merge branch 'akpm' (patches from Andrew)	2021-05-05 13:50:15 -07:00
char_dev.c	…
compat_binfmt_elf.c	…
coredump.c	…
d_path.c	…
dax.c	dax fixes for 5.13-rc2	2021-05-15 08:28:08 -07:00
dcache.c	…
direct-io.c	…
drop_caches.c	…
eventfd.c	…
eventpoll.c	fs/epoll: restore waking from ep_done_scan()	2021-05-06 19:24:13 -07:00
exec.c	…
fcntl.c	…
fhandle.c	…
file.c	Merge branch 'work.file' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-05-03 11:05:28 -07:00
file_table.c	…
filesystems.c	…
fs-writeback.c	…
fs_context.c	…
fs_parser.c	vfs: fs_parser: clean up kernel-doc warnings	2021-04-30 11:20:35 -07:00
fs_pin.c	…
fs_struct.c	…
fs_types.c	…
fsopen.c	…
init.c	…
inode.c	mm: remove nrexceptional from inode: remove BUG_ON	2021-05-05 11:27:20 -07:00
internal.h	…
io-wq.c	io-wq: Fix UAF when wakeup wqe in hash waitqueue	2021-05-26 09:03:56 -06:00
io-wq.h	io_uring/io-wq: close io-wq full-stop gap	2021-05-25 19:39:58 -06:00
io_uring.c	io_uring: fix misaccounting fix buf pinned pages	2021-05-29 19:27:21 -06:00
ioctl.c	…
kernel_read_file.c	…
libfs.c	…
locks.c	Additional fixes and clean-ups for NFSD since tags/nfsd-5.13,	2021-05-05 13:44:19 -07:00
mbcache.c	…
mount.h	…
mpage.c	…
namei.c	fs.idmapped.helpers.v5.13	2021-04-27 12:49:42 -07:00
namespace.c	fs/mount_setattr: tighten permission checks	2021-05-12 14:13:16 +02:00
no-block.c	…
nsfs.c	…
open.c	…
pipe.c	…
pnode.c	…
pnode.h	…
posix_acl.c	…
proc_namespace.c	…
read_write.c	…
readdir.c	…
remap_range.c	…
select.c	…
seq_file.c	seq_file: Add a seq_bprintf function	2021-04-27 15:50:15 -07:00
signalfd.c	signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo	2021-05-18 16:20:54 -05:00
splice.c	…
stack.c	…
stat.c	…
statfs.c	…
super.c	…
sync.c	…
timerfd.c	…
userfaultfd.c	userfaultfd: add UFFDIO_CONTINUE ioctl	2021-05-05 11:27:22 -07:00
utimes.c	…
xattr.c	…