Peter Zijlstra 536ebe9ca9 sched, fanotify: Deal with nested sleeps ... As per e23738a730 ("sched, inotify: Deal with nested sleeps"). fanotify_read is a wait loop with sleeps in. Wait loops rely on task_struct::state and sleeps do too, since that's the only means of actually sleeping. Therefore the nested sleeps destroy the wait loop state and the wait loop breaks the sleep functions that assume TASK_RUNNING (mutex_lock). Fix this by using the new woken_wake_function and wait_woken() stuff, which registers wakeups in wait and thereby allows shrinking the task_state::state changes to the actual sleep part. Reported-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reported-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Takashi Iwai <tiwai@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Eric Paris <eparis@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Eric Paris <eparis@redhat.com> Link: http://lkml.kernel.org/r/20141216152838.GZ3337@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-01-09 11:18:12 +01:00
..
9p	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
adfs	adfs: add __printf verification, fix format/argument mismatches	2014-08-08 15:57:24 -07:00
affs	fs/affs/file.c: remove obsolete pagesize check	2014-12-13 12:42:52 -08:00
afs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-12-11 14:27:06 -08:00
autofs4	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
befs	befs: remove dead code	2014-12-13 12:42:51 -08:00
bfs	fs/bfs: use bfs prefix for dump_imap	2014-08-08 15:57:24 -07:00
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-19 18:19:19 -08:00
cachefiles	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
ceph	Ceph: remove left-over reject file	2014-12-17 18:47:01 -08:00
cifs	Merge branch 'akpm' (patchbomb from Andrew)	2014-12-10 18:34:42 -08:00
coda	coda_venus_readdir(): use file_inode()	2014-12-11 16:28:12 -05:00
configfs	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
cramfs	fs/cramfs/inode.c: use linux/uaccess.h	2014-08-08 15:57:25 -07:00
debugfs	Driver core patches for 3.19-rc1	2014-12-14 16:10:09 -08:00
devpts	fs/devpts/inode.c: convert printk to pr_foo()	2014-06-06 16:08:14 -07:00
dlm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-10 16:10:49 -08:00
ecryptfs	Fixes for filename decryption and encrypted view plus a cleanup	2014-12-19 18:15:12 -08:00
efivarfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-10 16:10:49 -08:00
efs	fs/efs/namei.c: return is not a function	2014-08-08 15:57:18 -07:00
exofs	Boaz Harrosh - Fix broken email address	2014-10-19 20:22:32 +03:00
exportfs	move d_rcu from overlapping d_child to overlapping d_alias	2014-11-03 15:20:29 -05:00
ext2	ext2: Convert to private i_dquot field	2014-11-10 10:06:10 +01:00
ext3	ext3: Convert to private i_dquot field	2014-11-10 10:06:10 +01:00
ext4	move_extent_per_page(): get rid of unused w_flags	2014-12-17 06:43:56 -05:00
f2fs	f2fs: avoid to ra unneeded blocks in recover flow	2014-12-08 14:19:09 -08:00
fat	fat: fix data past EOF resulting from fsx testsuite	2014-12-13 12:42:51 -08:00
freevxfs	…
fscache	fs/fscache/object-list.c: use __seq_open_private()	2014-10-13 17:52:21 +01:00
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2014-12-17 09:41:32 -08:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-10 16:10:49 -08:00
hfs	fs/hfs/catalog.c: fix comparison bug in hfs_cat_keycmp	2014-12-10 17:41:16 -08:00
hfsplus	hfsplus: fix longname handling	2014-12-18 19:08:10 -08:00
hostfs	hostfs: support rename flags	2014-08-07 14:40:09 -04:00
hpfs	fs/hpfs/dnode.c: fix suspect code indent	2014-08-08 15:57:22 -07:00
hppfs	vfs: make first argument of dir_context.actor typed	2014-10-31 17:48:54 -04:00
hugetlbfs	mm: convert i_mmap_mutex to rwsem	2014-12-13 12:42:45 -08:00
isofs	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2014-12-16 15:46:01 -08:00
jbd	jbd: Deletion of an unnecessary check before the function call "iput"	2014-11-18 10:15:29 +01:00
jbd2	Lots of bugs fixes, including Zheng and Jan's extent status shrinker	2014-12-12 09:28:03 -08:00
jffs2	jffs2: Drop bogus if in comment	2014-11-28 18:23:44 -08:00
jfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-10 16:10:49 -08:00
kernfs	vm_area_operations: kill ->migrate()	2014-12-17 08:26:51 -05:00
lockd	Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux	2014-12-16 15:25:31 -08:00
logfs	fs/logfs/readwrite.c: kernel-doc warning fixes	2014-08-06 18:01:12 -07:00
minix	minix zmap block counts calculation fix	2014-08-08 15:57:20 -07:00
ncpfs	Merge branch 'akpm' (patchbomb from Andrew)	2014-12-10 18:34:42 -08:00
nfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-10 16:10:49 -08:00
nfs_common	lockd: move lockd's grace period handling into its own module	2014-09-17 16:33:11 -04:00
nfsd	Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux	2014-12-16 15:25:31 -08:00
nilfs2	nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races	2014-12-10 17:41:16 -08:00
nls	…
notify	sched, fanotify: Deal with nested sleeps	2015-01-09 11:18:12 +01:00
ntfs	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
ocfs2	ocfs2: fix journal commit deadlock	2014-12-18 19:08:11 -08:00
omfs	FS/OMFS: block number sanity check during fill_super operation	2014-10-14 02:18:22 +02:00
openpromfs	…
overlayfs	Merge branch 'iov_iter' into for-next	2014-12-08 20:39:29 -05:00
proc	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-12-19 13:26:08 -08:00
pstore	Driver core patches for 3.19-rc1	2014-12-14 16:10:09 -08:00
qnx4	…
qnx6	fs/qnx6: update debugging to current functions	2014-08-08 15:57:26 -07:00
quota	vfs: Remove i_dquot field from inode	2014-11-10 10:06:18 +01:00
ramfs	fs/ramfs/file-nommu.c: replace count*size kzalloc by kcalloc	2014-08-08 15:57:18 -07:00
reiserfs	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2014-12-16 15:46:01 -08:00
romfs	fs/romfs/super.c: add blank line after declarations	2014-08-08 15:57:25 -07:00
squashfs	Squashfs: Add LZ4 compression configuration option	2014-11-27 18:48:44 +00:00
sysfs	sysfs/kernfs: make read requests on pre-alloc files use the buffer.	2014-11-07 10:54:38 -08:00
sysv	write_iter variants of {__,}generic_file_aio_write()	2014-05-06 17:38:00 -04:00
ubifs	UBIFS: fix a couple bugs in UBIFS xattr length calculation	2014-11-07 12:32:22 +02:00
udf	udf: One function call less in udf_fill_super() after error detection	2014-11-19 21:56:06 +01:00
ufs	fs/ufs/balloc.c: remove unused variable	2014-10-14 02:18:20 +02:00
xfs	xfs: update for 3.19-rc1	2014-12-12 09:48:17 -08:00
Kconfig	overlay filesystem	2014-10-24 00:14:38 +02:00
Kconfig.binfmt	binfmt_elf: allow arch code to examine PT_LOPROC ... PT_HIPROC headers	2014-11-24 07:45:02 +01:00
Makefile	Merge branch 'nsfs' into for-next	2014-12-10 21:31:59 -05:00
aio.c	aio: Skip timer for io_getevents if timeout=0	2014-12-13 17:50:20 -05:00
anon_inodes.c	…
attr.c	fs,userns: Change inode_capable to capable_wrt_inode_uidgid	2014-06-10 13:57:22 -07:00
bad_inode.c	bad_inode: add ->rename2()	2014-08-07 14:40:09 -04:00
binfmt_aout.c	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
binfmt_elf.c	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2014-12-11 17:56:37 -08:00
binfmt_elf_fdpic.c	handle suicide on late failure exits in execve() in search_binary_handler()	2014-10-09 02:39:00 -04:00
binfmt_em86.c	syscalls: implement execveat() system call	2014-12-13 12:42:51 -08:00
binfmt_flat.c	fs/binfmt_flat.c: make old_reloc() static	2014-06-04 16:54:21 -07:00
binfmt_misc.c	unfuck binfmt_misc.c (broken by commit e6084d4)	2014-12-17 08:27:14 -05:00
binfmt_script.c	syscalls: implement execveat() system call	2014-12-13 12:42:51 -08:00
binfmt_som.c	…
block_dev.c	fs: add freeze_super/thaw_super fs hooks	2014-11-17 10:35:17 +00:00
buffer.c	fs: clarify rate limit suppressed buffer I/O errors	2014-10-21 13:55:11 -06:00
char_dev.c	fs/char_dev.c: remove pointless assignment from __register_chrdev_region()	2014-12-10 17:41:04 -08:00
compat.c	vfs: make first argument of dir_context.actor typed	2014-10-31 17:48:54 -04:00
compat_binfmt_elf.c	…
compat_ioctl.c	Bluetooth: Move HCI socket definitions into its own header file	2014-07-11 13:53:04 +03:00
coredump.c	coredump: add %i/%I in core_pattern to report the tid of the crashed thread	2014-10-14 02:18:21 +02:00
dcache.c	Merge branch 'iov_iter' into for-next	2014-12-08 20:39:29 -05:00
dcookies.c	…
direct-io.c	fuse: honour max_read and max_write in direct_io mode	2014-09-26 21:16:51 -04:00
drop_caches.c	mm: vmscan: invoke slab shrinkers from shrink_zone()	2014-12-13 12:42:48 -08:00
eventfd.c	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
eventpoll.c	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
exec.c	syscalls: implement execveat() system call	2014-12-13 12:42:51 -08:00
fcntl.c	security: make security_file_set_fowner, f_setown and __f_setown void return	2014-09-09 16:01:36 -04:00
fhandle.c	…
file.c	fs/file.c: replace get_unused_fd() with get_unused_fd_flags(0)	2014-12-10 17:41:10 -08:00
file_table.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-10-13 11:28:42 +02:00
filesystems.c	…
fs-writeback.c	writeback: fix a subtle race condition in I_DIRTY clearing	2014-11-04 10:42:23 -07:00
fs_pin.c	make fs/{namespace,super}.c forget about acct.h	2014-08-07 14:40:09 -04:00
fs_struct.c	…
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-16 15:53:03 -08:00
internal.h	take the targets of /proc/*/ns/* symlinks to separate fs	2014-12-10 21:30:20 -05:00
ioctl.c	Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux	2014-12-16 15:25:31 -08:00
libfs.c	move d_rcu from overlapping d_child to overlapping d_alias	2014-11-03 15:20:29 -05:00
locks.c	locks: flock_make_lock should return a struct file_lock (or PTR_ERR)	2014-10-07 14:06:13 -04:00
mbcache.c	fs/mbcache: replace __builtin_log2() with ilog2()	2014-06-25 22:08:29 -04:00
mount.h	common object embedded into various struct ....ns	2014-12-04 14:31:00 -05:00
mpage.c	vfs: guard end of device for mpage interface	2014-10-09 22:25:53 -04:00
namei.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-16 15:53:03 -08:00
namespace.c	mnt: Fix a memory stomp in umount	2014-12-18 11:22:02 -08:00
no-block.c	…
nsfs.c	take the targets of /proc/*/ns/* symlinks to separate fs	2014-12-10 21:30:20 -05:00
open.c	Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux	2014-12-16 15:25:31 -08:00
pipe.c	new helper: copy_page_from_iter()	2014-05-06 17:39:42 -04:00
pnode.c	mnt: Move the clear of MNT_LOCKED from copy_tree to it's callers.	2014-12-02 10:46:50 -06:00
pnode.h	…
posix_acl.c	posix_acl: handle NULL ACL in posix_acl_equiv_mode	2014-05-06 13:58:42 -04:00
proc_namespace.c	vfs: make mounts and mountstats honor root dir like mountinfo does	2014-12-17 08:27:15 -05:00
read_write.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2014-12-14 20:36:37 -08:00
readdir.c	vfs: make first argument of dir_context.actor typed	2014-10-31 17:48:54 -04:00
select.c	…
seq_file.c	fs, seq_file: fallback to vmalloc instead of oom kill processes	2014-12-13 12:42:49 -08:00
signalfd.c	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
splice.c	vfs: export do_splice_direct() to modules	2014-10-24 00:14:35 +02:00
stack.c	fs: fix comment for 'CONFIG_LBADF'	2014-08-26 09:35:56 +02:00
stat.c	…
statfs.c	…
super.c	vfs: Remove i_dquot field from inode	2014-11-10 10:06:18 +01:00
sync.c	kill f_dentry uses	2014-11-19 13:01:25 -05:00
timerfd.c	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
utimes.c	…
xattr.c	new helper: audit_file()	2014-11-19 13:01:26 -05:00