Linus Torvalds 85190d15f4 pipe: don't use 'pipe_wait() for basic pipe IO ... pipe_wait() may be simple, but since it relies on the pipe lock, it means that we have to do the wakeup while holding the lock. That's unfortunate, because the very first thing the waked entity will want to do is to get the pipe lock for itself. So get rid of the pipe_wait() usage by simply releasing the pipe lock, doing the wakeup (if required) and then using wait_event_interruptible() to wait on the right condition instead. wait_event_interruptible() handles races on its own by comparing the wakeup condition before and after adding itself to the wait queue, so you can use an optimistic unlocked condition for it. Cc: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-12-07 13:53:09 -08:00
..
9p
adfs
affs	affs: fix a memory leak in affs_remount	2019-11-18 14:26:43 +01:00
afs	AFS development	2019-11-30 10:57:22 -08:00
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
bfs
btrfs	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
cachefiles
ceph	The two highlights are a set of improvements to how rbd read-only	2019-12-05 13:06:51 -08:00
cifs	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
coda
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	fscrypt: add support for IV_INO_LBLK_64 policies	2019-11-06 12:34:36 -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
dlm
ecryptfs	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
efivarfs
efs
erofs	erofs: remove unnecessary output in erofs_show_options()	2019-11-24 11:02:41 +08:00
exportfs	exportfs_decode_fh(): negative pinned may become positive without the parent locked	2019-11-10 11:56:05 -05:00
ext2	\n	2019-11-30 11:16:07 -08:00
ext4	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
f2fs	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
fat
freevxfs
fscache
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
hfsplus
hostfs
hpfs
hugetlbfs	hugetlb: remove unused hstate in hugetlb_fault_mutex_hash()	2019-12-01 12:59:08 -08:00
iomap	iomap: remove unneeded variable in iomap_dio_rw()	2019-11-26 09:28:47 -08:00
isofs
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
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
minix
nfs	NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()	2019-11-01 11:03:56 -04:00
nfs_common
nfsd	new helper: lookup_positive_unlocked()	2019-11-15 13:49:04 -05:00
nilfs2
nls
notify	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
ntfs
ocfs2	Merge branch 'akpm' (patches from Andrew)	2019-12-01 20:36:41 -08:00
omfs
openpromfs
orangefs
overlayfs	new helper: lookup_positive_unlocked()	2019-11-15 13:49:04 -05:00
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
qnx6
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
reiserfs	reiserfs: replace open-coded atomic_dec_and_mutex_lock()	2019-11-05 12:25:22 +01:00
romfs
squashfs
sysfs
sysv
tracefs
ubifs	ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps	2019-11-17 22:22:54 +01:00
udf
ufs
unicode
verity
xfs	New code for 5.5:	2019-12-02 14:46:22 -08:00
aio.c	y2038: syscall implementation cleanups	2019-12-01 14:00:59 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
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
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c	block: don't send uevent for empty disk when not invalidating	2019-12-02 18:49:30 -07:00
buffer.c	fs/buffer.c: include internal.h for missing declarations	2019-12-01 06:29:17 -08:00
char_dev.c
compat.c
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
d_path.c
dax.c	New code for 5.5:	2019-11-30 10:44:49 -08:00
dcache.c	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-06 09:06:58 -08:00
dcookies.c
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
eventfd.c
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
fhandle.c
file.c	Revert "vfs: properly and reliably lock f_pos in fdget_pos()"	2019-11-26 11:34:06 -08:00
file_table.c
filesystems.c
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
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c
internal.h
io-wq.c	io_uring: use current task creds instead of allocating a new one	2019-12-02 08:50:00 -07:00
io-wq.h	io-wq: clear node->next on list deletion	2019-12-04 17:26:57 -07:00
io_uring.c	io_uring: fix a typo in a comment	2019-12-05 07:59:37 -07:00
ioctl.c	New code for 5.5:	2019-12-02 14:46:22 -08:00
Kconfig	io-wq: small threadpool implementation for io_uring	2019-10-29 12:43:00 -06:00
Kconfig.binfmt
libfs.c
locks.c
Makefile	io-wq: small threadpool implementation for io_uring	2019-10-29 12:43:00 -06:00
mbcache.c
mount.h
mpage.c
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
no-block.c
nsfs.c
open.c	Revert "vfs: properly and reliably lock f_pos in fdget_pos()"	2019-11-26 11:34:06 -08:00
pipe.c	pipe: don't use 'pipe_wait() for basic pipe IO	2019-12-07 13:53:09 -08:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
select.c	y2038: syscalls: change remaining timeval to __kernel_old_timeval	2019-11-15 14:38:29 +01:00
seq_file.c
signalfd.c
splice.c	pipe: remove 'waiting_writers' merging logic	2019-12-07 13:21:01 -08:00
stack.c
stat.c
statfs.c
super.c
sync.c
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