Ming Lei 85a8ce62c2 block: add bio_truncate to fix guard_bio_eod ... Some filesystem, such as vfat, may send bio which crosses device boundary, and the worse thing is that the IO request starting within device boundaries can contain more than one segment past EOD. Commit dce30ca9e3 ("fs: fix guard_bio_eod to check for real EOD errors") tries to fix this issue by returning -EIO for this situation. However, this way lets fs user code lose chance to handle -EIO, then sync_inodes_sb() may hang for ever. Also the current truncating on last segment is dangerous by updating the last bvec, given bvec table becomes not immutable any more, and fs bio users may not retrieve the truncated pages via bio_for_each_segment_all() in its .end_io callback. Fixes this issue by supporting multi-segment truncating. And the approach is simpler: - just update bio size since block layer can make correct bvec with the updated bio size. Then bvec table becomes really immutable. - zero all truncated segments for read bio Cc: Carlos Maiolino <cmaiolino@redhat.com> Cc: linux-fsdevel@vger.kernel.org Fixed-by: dce30ca9e3 ("fs: fix guard_bio_eod to check for real EOD errors") Reported-by: syzbot+2b9e54155c8c25d8d165@syzkaller.appspotmail.com Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2019-12-28 09:44:56 -07:00
..
9p	9p pull request for inclusion in 5.4	2019-09-27 15:10:34 -07:00
adfs	Merge branch 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 11:33:22 -07:00
affs	affs: fix a memory leak in affs_remount	2019-11-18 14:26:43 +01:00
afs	afs: Show volume name in /proc/net/afs/<cell>/volumes	2019-12-11 17:48:20 +00:00
autofs	Merge branch 'next.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-05 17:11:48 -08:00
befs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
bfs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
btrfs	btrfs: add Kconfig dependency for BLAKE2B	2019-12-09 17:56:06 +01:00
cachefiles	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
ceph	ceph: add more debug info when decoding mdsmap	2019-12-09 20:55:10 +01:00
cifs	CIFS: Close cached root handle only if it has a lease	2019-12-13 00:49:57 -06:00
coda	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
configfs	configfs: calculate the depth of parent item	2019-11-06 18:36:01 +01:00
cramfs	cramfs: fix usage on non-MTD device	2019-11-23 21:44:49 -05:00
crypto	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
debugfs	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
devpts	devpts_pty_kill(): don't bother with d_delete()	2019-09-03 09:30:56 -04:00
dlm	dlm for 5.3	2019-07-12 17:37:53 -07:00
ecryptfs	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
efivarfs	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
efs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
erofs	Changes since last update:	2019-12-11 12:25:32 -08:00
exportfs	race in exportfs_decode_fh()	2019-11-11 09:21:59 -05:00
ext2	\n	2019-11-30 11:16:07 -08:00
ext4	fs/ext4/inode-test: Fix inode test on 32 bit platforms.	2019-12-09 11:15:44 -07:00
f2fs	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
fat	compat_ioctl: move drivers to compat_ptr_ioctl	2019-10-23 17:23:43 +02:00
freevxfs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
fscache	Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"	2019-07-10 18:43:43 -07:00
fuse	pipe: Fix iteration end check in fuse_dev_splice_write()	2019-12-06 13:57:04 -08:00
gfs2	GFS2 changes for this merge window:	2019-12-05 13:20:11 -08:00
hfs	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
hfsplus	fs/hfsplus/xattr.c: replace strncpy with memcpy	2019-07-16 19:23:23 -07:00
hostfs	This pull request contains the following changes for UML:	2019-05-12 17:52:13 -04:00
hpfs	fs: compat_ioctl: move FITRIM emulation into file systems	2019-10-23 17:23:46 +02:00
hugetlbfs	hugetlb: remove unused hstate in hugetlb_fault_mutex_hash()	2019-12-01 12:59:08 -08:00
iomap	iomap: stop using ioend after it's been freed in iomap_finish_ioend()	2019-12-05 07:41:16 -08:00
isofs	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
jbd2	This merge window saw the the following new featuers added to ext4:	2019-11-30 10:53:02 -08:00
jffs2	Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()"	2019-11-29 11:29:58 +01:00
jfs	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
kernfs	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
lockd	NFSv4.1: Don't rebind to the same source port when reconnecting to the server	2019-11-03 21:28:45 -05:00
minix	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
nfs	NFS4: Trace lock reclaims	2019-11-18 11:04:32 +01:00
nfs_common	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
nfsd	This is a relatively quiet cycle for nfsd, mainly various bugfixes.	2019-12-07 16:56:00 -08:00
nilfs2	fs: compat_ioctl: move FITRIM emulation into file systems	2019-10-23 17:23:46 +02:00
nls	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
notify	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
ntfs	ntfs: remove (un)?likely() from IS_ERR() conditions	2019-09-26 10:10:44 -07:00
ocfs2	Merge branch 'akpm' (patches from Andrew)	2019-12-01 20:36:41 -08:00
omfs	fs: omfs: Initialize filesystem timestamp ranges	2019-08-30 08:11:25 -07:00
openpromfs	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
orangefs	orangefs: posix open permission checking...	2019-12-04 08:52:55 -05:00
overlayfs	overlayfs fixes for 5.5-rc2	2019-12-14 11:13:54 -08:00
proc	fs/proc/Kconfig: fix indentation	2019-12-04 19:44:11 -08:00
pstore	pstore: Make pstore_choose_compression() static	2019-10-29 09:43:03 -07:00
qnx4	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
qnx6	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
quota	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
ramfs	vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API	2019-09-12 21:05:34 -04:00
reiserfs	reiserfs: replace open-coded atomic_dec_and_mutex_lock()	2019-11-05 12:25:22 +01:00
romfs	Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-19 10:06:57 -07:00
squashfs	Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-19 10:06:57 -07:00
sysfs	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
sysv	fs: sysv: Initialize filesystem timestamp ranges	2019-08-30 07:27:18 -07:00
tracefs	tracing: Do not create tracefs files if tracefs lockdown is in effect	2019-10-12 20:49:07 -04:00
ubifs	ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps	2019-11-17 22:22:54 +01:00
udf	fs-udf: Delete an unnecessary check before brelse()	2019-09-04 18:19:43 +02:00
ufs	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
unicode	unicode: make array 'token' static const, makes object smaller	2019-09-17 11:48:24 -04:00
verity	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
xfs	Fixes for 5.5-rc1:	2019-12-07 17:05:33 -08:00
Kconfig	io-wq: small threadpool implementation for io_uring	2019-10-29 12:43:00 -06:00
Kconfig.binfmt	binfmt_flat: make support for old format binaries optional	2019-06-24 09:16:47 +10:00
Makefile	io-wq: small threadpool implementation for io_uring	2019-10-29 12:43:00 -06:00
aio.c	y2038: syscall implementation cleanups	2019-12-01 14:00:59 -08:00
anon_inodes.c	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
attr.c	timestamp_truncate: Replace users of timespec64_trunc	2019-08-30 07:27:17 -07:00
bad_inode.c	…
binfmt_aout.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
binfmt_elf.c	fs/binfmt_elf.c: extract elf_read() function	2019-12-04 19:44:13 -08:00
binfmt_elf_fdpic.c	y2038: elfcore: Use __kernel_old_timeval for process times	2019-11-15 14:38:29 +01:00
binfmt_em86.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
binfmt_flat.c	fs/binfmt_flat.c: remove set but not used variable 'inode'	2019-07-16 19:23:22 -07:00
binfmt_misc.c	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
binfmt_script.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
block_dev.c	block: don't send uevent for empty disk when not invalidating	2019-12-02 18:49:30 -07:00
buffer.c	block: add bio_truncate to fix guard_bio_eod	2019-12-28 09:44:56 -07:00
char_dev.c	chardev: set variable ret to -EBUSY before checking minor range overlap	2019-05-24 20:50:36 +02:00
compat.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
compat_binfmt_elf.c	y2038: elfcore: Use __kernel_old_timeval for process times	2019-11-15 14:38:29 +01:00
compat_ioctl.c	New code for 5.5:	2019-12-02 14:46:22 -08:00
coredump.c	coredump: split pipe command whitespace before expanding template	2019-08-03 07:02:01 -07:00
d_path.c	[PATCH] fix d_absolute_path() interplay with fsmount()	2019-08-30 19:31:09 -04:00
dax.c	New code for 5.5:	2019-11-30 10:44:49 -08:00
dcache.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-08 11:08:28 -08:00
dcookies.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
direct-io.c	fs/direct-io.c: keep dio_warn_stale_pagecache() when CONFIG_BLOCK=n	2019-12-01 06:29:18 -08:00
drop_caches.c	fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()	2019-02-01 15:46:24 -08:00
eventfd.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
eventpoll.c	fs/epoll: remove unnecessary wakeups of nested epoll	2019-12-04 19:44:13 -08:00
exec.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 12:20:25 -08:00
fcntl.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-08 11:08:28 -08:00
fhandle.c	fs/handle.c - fix up kerneldoc	2019-08-07 21:51:47 -04:00
file.c	fs: remove ksys_dup()	2019-12-12 19:00:36 +01:00
file_table.c	vfs: Export flush_delayed_fput for use by knfsd.	2019-08-19 11:00:39 -04:00
filesystems.c	vfs: Implement a filesystem superblock creation/configuration context	2019-02-28 03:29:26 -05:00
fs-writeback.c	cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead	2019-11-08 13:37:24 -07:00
fs_context.c	vfs: subtype handling moved to fuse	2019-09-06 21:28:49 +02:00
fs_parser.c	vfs: Make fs_parse() handle fs_param_is_fd-type params better	2019-09-12 21:06:14 -04:00
fs_pin.c	switch the remnants of releasing the mountpoint away from fs_pin	2019-07-16 22:52:37 -04:00
fs_struct.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
fs_types.c	fs: common implementation of file type	2019-01-21 17:48:13 +01:00
fsopen.c	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
inode.c	mm,thp: avoid writes to file with THP in pagecache	2019-09-24 15:54:11 -07:00
internal.h	make __d_alloc() static	2019-10-25 14:08:24 -04:00
io-wq.c	io-wq: briefly spin for new work after finishing work	2019-12-10 16:33:22 -07:00
io-wq.h	io-wq: briefly spin for new work after finishing work	2019-12-10 16:33:22 -07:00
io_uring.c	io_uring: ensure we return -EINVAL on unknown opcode	2019-12-11 16:02:32 -07:00
ioctl.c	New code for 5.5:	2019-12-02 14:46:22 -08:00
libfs.c	fs/libfs.c: fix kernel-doc warning	2019-10-14 15:04:01 -07:00
locks.c	Highlights:	2019-09-27 17:00:27 -07:00
mbcache.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
mount.h	switch the remnants of releasing the mountpoint away from fs_pin	2019-07-16 22:52:37 -04:00
mpage.c	blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()	2019-07-10 09:00:57 -06:00
namei.c	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
namespace.c	init: use do_mount() instead of ksys_mount()	2019-12-12 14:50:05 +01:00
no-block.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
nsfs.c	vfs: Convert nsfs to use the new mount API	2019-05-25 18:00:06 -04:00
open.c	Revert "vfs: properly and reliably lock f_pos in fdget_pos()"	2019-11-26 11:34:06 -08:00
pipe.c	pipe: simplify signal handling in pipe_read() and add comments	2019-12-11 11:46:19 -08:00
pnode.c	fs/namespace: fix unprivileged mount propagation	2019-06-17 17:36:09 -04:00
pnode.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209	2019-05-30 11:29:53 -07:00
posix_acl.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
proc_namespace.c	vfs: subtype handling moved to fuse	2019-09-06 21:28:49 +02:00
read_write.c	vfs: fix page locking deadlocks when deduping files	2019-08-16 18:43:24 -07:00
readdir.c	filldir[64]: remove WARN_ON_ONCE() for bad directory entries	2019-10-18 18:41:16 -04:00
select.c	y2038: syscalls: change remaining timeval to __kernel_old_timeval	2019-11-15 14:38:29 +01:00
seq_file.c	seq_file: fix problem when seeking mid-record	2019-08-13 16:06:52 -07:00
signalfd.c	fs: mark expected switch fall-throughs	2019-04-08 18:21:02 -05:00
splice.c	pipe: remove 'waiting_writers' merging logic	2019-12-07 13:21:01 -08:00
stack.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
stat.c	fs: move generic stat response attr handling to vfs_getattr_nosec	2019-02-01 01:55:45 -05:00
statfs.c	vfs: Fix EOVERFLOW testing in put_compat_statfs64	2019-10-03 14:21:35 -07:00
super.c	Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-10-10 08:16:44 -07:00
sync.c	fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback	2019-05-14 09:47:50 -07:00
timerfd.c	y2038: timerfd: Use timespec64 internally	2019-11-15 14:38:30 +01:00
userfaultfd.c	Merge branch 'akpm' (patches from Andrew)	2019-12-01 20:36:41 -08:00
utimes.c	y2038: syscalls: change remaining timeval to __kernel_old_timeval	2019-11-15 14:38:29 +01:00
xattr.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00