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Ritesh Harjani 4125714ce1 ext4: fix ext4_dax_read/write inode locking sequence for IOCB_NOWAIT 
[ Upstream commit f629afe336 ]

Apparently our current rwsem code doesn't like doing the trylock, then
lock for real scheme.  So change our dax read/write methods to just do the
trylock for the RWF_NOWAIT case.
This seems to fix AIM7 regression in some scalable filesystems upto ~25%
in some cases. Claimed in commit 942491c9e6 ("xfs: fix AIM7 regression")

Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Matthew Bobrowski <mbobrowski@mbobrowski.org>
Tested-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20191212055557.11151-2-riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:36:24 +01:00
..
9p
Merge tag '9p-for-5.4' of git://github.com/martinetd/linux
2019-09-27 15:10:34 -07:00
adfs
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affs
affs: fix a memory leak in affs_remount
2020-01-17 19:48:50 +01:00
afs
afs: Fix characters allowed into cell names
2020-01-29 16:45:24 +01:00
autofs
autofs: fix a leak in autofs_expire_indirect()
2019-10-25 00:03:11 -04:00
befs
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bfs
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btrfs
btrfs: log message when rw remount is attempted with unclean tree-log
2020-02-19 19:53:01 +01:00
cachefiles
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ceph
ceph: hold extra reference to r_parent over life of request
2020-01-29 16:45:24 +01:00
cifs
cifs: fix mount option display for sec=krb5i
2020-02-19 19:53:08 +01:00
coda
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2019-09-19 09:42:37 -07:00
configfs
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
cramfs
cramfs: fix usage on non-MTD device
2019-11-23 21:44:49 -05:00
crypto
fscrypt: don't print name of busy file when removing key
2020-02-11 04:35:20 -08:00
debugfs
debugfs: Return -EPERM when locked down
2020-02-01 09:34:35 +00:00
devpts
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dlm
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ecryptfs
ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
2019-11-10 11:57:45 -05:00
efivarfs
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efs
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erofs
erofs: fix out-of-bound read for shifted uncompressed block
2020-02-11 04:35:23 -08:00
exportfs
exportfs_decode_fh(): negative pinned may become positive without the parent locked
2019-11-10 11:56:05 -05:00
ext2
ext2: Adjust indentation in ext2_fill_super
2020-02-11 04:35:45 -08:00
ext4
ext4: fix ext4_dax_read/write inode locking sequence for IOCB_NOWAIT
2020-02-24 08:36:24 +01:00
f2fs
f2fs: call f2fs_balance_fs outside of locked page
2020-02-24 08:36:23 +01:00
fat
fat: delete an unnecessary check before brelse()
2019-09-25 17:51:40 -07:00
freevxfs
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fscache
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fuse
fix up iter on short count in fuse_direct_io()
2020-02-11 04:35:43 -08:00
gfs2
gfs2: fix O_SYNC write handling
2020-02-11 04:35:35 -08:00
hfs
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hfsplus
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hostfs
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hpfs
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hugetlbfs
mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs()
2020-01-04 19:19:19 +01:00
iomap
iomap: fix return value of iomap_dio_bio_actor on 32bit systems
2020-01-04 19:17:31 +01:00
isofs
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2019-09-19 09:42:37 -07:00
jbd2
jbd2: do not clear the BH_Mapped flag when forgetting a metadata buffer
2020-02-19 19:53:09 +01:00
jffs2
Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()"
2019-12-04 22:31:06 +01:00
jfs
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2019-09-19 09:42:37 -07:00
kernfs
kernfs: fix ino wrap-around detection
2019-12-13 08:42:53 +01:00
lockd
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minix
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nfs
NFSv4.1 make cachethis=no for writes
2020-02-19 19:53:09 +01:00
nfs_common
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nfsd
nfsd: Return the correct number of bytes written to the file
2020-02-11 04:35:47 -08:00
nilfs2
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nls
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notify
fs: call fsnotify_sb_delete after evict_inodes
2020-01-12 12:21:38 +01:00
ntfs
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
ocfs2
ocfs2: fix oops when writing cloned file
2020-02-11 04:35:42 -08:00
omfs
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openpromfs
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orangefs
Merge tag 'for-linus-5.4-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
2019-09-19 10:21:35 -07:00
overlayfs
ovl: fix lseek overflow on 32bit
2020-02-11 04:35:24 -08:00
proc
proc/meminfo: fix output alignment
2019-10-19 06:32:32 -04:00
pstore
pstore/ram: Regularize prz label allocation lifetime
2020-01-14 20:08:28 +01:00
qnx4
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qnx6
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quota
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
ramfs
vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
2019-09-12 21:05:34 -04:00
reiserfs
reiserfs: Fix memory leak of journal device string
2020-02-05 21:22:40 +00:00
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
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sysv
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tracefs
tracing: Do not create tracefs files if tracefs lockdown is in effect
2019-10-12 20:49:07 -04:00
ubifs
ubifs: Fix memory leak from c->sup_node
2020-02-11 04:35:48 -08:00
udf
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ufs
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
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
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xfs
xfs: Sanity check flags of Q_XQUOTARM call
2020-01-26 10:00:59 +01:00
aio.c
aio: prevent potential eventfd recursion on poll
2020-02-11 04:35:37 -08:00
anon_inodes.c
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attr.c
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
bad_inode.c
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binfmt_aout.c
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binfmt_elf_fdpic.c
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binfmt_elf.c
elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings
2019-10-06 13:53:27 -07:00
binfmt_em86.c
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binfmt_flat.c
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binfmt_misc.c
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binfmt_script.c
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block_dev.c
bdev: Refresh bdev size for disks without partitioning
2019-12-13 08:43:19 +01:00
buffer.c
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-14 20:08:18 +01:00
compat_binfmt_elf.c
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compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:20:05 +01:00
compat.c
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coredump.c
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d_path.c
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dax.c
fs/dax: Fix pmd vs pte conflict detection
2019-10-22 22:53:02 -07:00
dcache.c
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dcookies.c
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direct-io.c
fs/direct-io.c: fix kernel-doc warning
2019-10-14 15:04:01 -07:00
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:35:37 -08:00
eventpoll.c
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exec.c
exit/exec: Seperate mm_release()
2019-11-29 10:10:10 +01:00
fcntl.c
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fhandle.c
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file_table.c
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file.c
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filesystems.c
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fs_context.c
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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
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fs_struct.c
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fs_types.c
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fs-writeback.c
memcg: fix a crash in wb_workfn when a device disappears
2020-02-11 04:35:11 -08:00
fsopen.c
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inode.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
internal.h
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
io_uring.c
Revert "io_uring: only allow submit from owning task"
2020-01-29 16:45:24 +01:00
ioctl.c
compat_ioctl: add compat_ptr_ioctl()
2019-12-17 19:55:30 +01:00
Kconfig
Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
2019-09-18 16:59:14 -07:00
Kconfig.binfmt
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libfs.c
fs/libfs.c: fix kernel-doc warning
2019-10-14 15:04:01 -07:00
locks.c
locks: print unsigned ino in /proc/locks
2020-01-09 10:19:57 +01:00
Makefile
Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
2019-09-18 16:59:14 -07:00
mbcache.c
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mount.h
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mpage.c
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
namei.c
vfs: fix do_last() regression
2020-02-05 21:22:39 +00:00
namespace.c
fs/namespace.c: fix use-after-free of mount in mnt_warn_timestamp_expiry()
2019-10-16 23:15:09 -04:00
no-block.c
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nsfs.c
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open.c
fs: remove unlikely() from WARN_ON() condition
2019-09-26 10:10:30 -07:00
pipe.c
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pnode.c
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pnode.h
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posix_acl.c
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proc_namespace.c
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read_write.c
fs: allow deduplication of eof block into the end of the destination file
2020-02-11 04:35:23 -08:00
readdir.c
readdir: be more conservative with directory entry names
2020-01-29 16:45:31 +01:00
select.c
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seq_file.c
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signalfd.c
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splice.c
splice: only read in as much information as there is pipe buffer space
2019-12-17 19:56:52 +01:00
stack.c
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stat.c
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statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-03 14:21:35 -07:00
super.c
fs: call fsnotify_sb_delete after evict_inodes
2020-01-12 12:21:38 +01:00
sync.c
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timerfd.c
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userfaultfd.c
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
2020-01-04 19:18:32 +01:00
utimes.c
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
xattr.c
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