Chris Metcalf f51c0eaee3 procfs: treat parked tasks as sleeping for task state ... Allowing watchdog threads to be parked means that we now have the opportunity of actually seeing persistent parked threads in the output of /proc/<pid>/stat and /proc/<pid>/status. The existing code reported such threads as "Running", which is kind-of true if you think of the case where we park them as part of taking cpus offline. But if we allow parking them indefinitely, "Running" is pretty misleading, so we report them as "Sleeping" instead. We could simply report them with a new string, "Parked", but it feels like it's a bit risky for userspace to see unexpected new values; the output is already documented in Documentation/filesystems/proc.txt, and it seems like a mistake to change that lightly. The scheduler does report parked tasks with a "P" in debugging output from sched_show_task() or dump_cpu_task(), but that's a different API. Similarly, the trace_ctxwake_* routines report a "P" for parked tasks, but again, different API. This change seemed slightly cleaner than updating the task_state_array to have additional rows. TASK_DEAD should be subsumed by the exit_state bits; TASK_WAKEKILL is just a modifier; and TASK_WAKING can very reasonably be reported as "Running" (as it is now). Only TASK_PARKED shows up with unreasonable output here. Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Ulrich Obergfell <uobergfe@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-06-24 17:49:40 -07:00
..
9p	get rid of assorted nameidata-related debris	2015-05-15 01:10:37 -04:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
affs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
afs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
autofs4	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
befs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
bfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
btrfs	Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2015-05-23 11:14:10 -07:00
cachefiles	VFS: fs/cachefiles: d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
ceph	ceph: switch to simple_follow_link()	2015-05-10 22:18:28 -04:00
cifs	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
coda	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
configfs	configfs: unexport/make static config_item_init()	2015-06-24 17:49:39 -07:00
cramfs	…
debugfs	debugfs: switch to simple_follow_link()	2015-05-10 22:18:24 -04:00
devpts	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
dlm	…
ecryptfs	get rid of assorted nameidata-related debris	2015-05-15 01:10:37 -04:00
efivarfs	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-05-06 10:57:37 -07:00
efs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
exofs	exofs: switch to {simple,page}_symlink_inode_operations	2015-05-10 22:18:27 -04:00
exportfs	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
ext2	ext2: use simple_follow_link()	2015-05-10 22:18:21 -04:00
ext3	ext3: switch to simple_follow_link()	2015-05-10 22:18:22 -04:00
ext4	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
f2fs	switch ->put_link() from dentry to inode	2015-05-11 08:13:12 -04:00
fat	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
freevxfs	freevxfs: switch to simple_follow_link()	2015-05-10 22:18:27 -04:00
fscache	…
fuse	new helper: free_page_put_link()	2015-05-11 08:13:13 -04:00
gfs2	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
hfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
hfsplus	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
hostfs	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
hpfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
hppfs	switch ->put_link() from dentry to inode	2015-05-11 08:13:12 -04:00
hugetlbfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
isofs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
jbd	…
jbd2	jbd2: fix r_count overflows leading to buffer overflow in journal recovery	2015-05-14 19:11:50 -04:00
jffs2	MTD fixes for 4.2	2015-06-23 17:38:39 -07:00
jfs	jfs: switch to simple_follow_link()	2015-05-10 22:18:26 -04:00
kernfs	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
lockd	nfsd: eliminate NFSD_DEBUG	2015-04-21 16:16:02 -04:00
logfs	logfs: fix a pagecache leak for symlinks	2015-05-10 22:18:28 -04:00
minix	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
ncpfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
nfs	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
nfs_common	…
nfsd	nfsd: skip CB_NULL probes for 4.1 or later	2015-05-04 12:02:42 -04:00
nilfs2	nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()	2015-05-05 17:10:11 -07:00
nls	…
notify	fanotify: fix event filtering with FAN_ONDIR set	2015-03-12 18:46:08 -07:00
ntfs	NTFS: use kvfree() in ntfs_free()	2015-06-24 17:49:38 -07:00
ocfs2	ocfs2: mark local functions as static	2015-06-24 17:49:40 -07:00
omfs	omfs: fix potential integer overflow in allocator	2015-05-28 18:25:19 -07:00
openpromfs	…
overlayfs	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
proc	procfs: treat parked tasks as sleeping for task state	2015-06-24 17:49:40 -07:00
pstore	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
qnx4	…
qnx6	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
quota	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
ramfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
romfs	make new_sync_{read,write}() static	2015-04-11 22:29:40 -04:00
squashfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
sysfs	sysfs: Only accept read/write permissions for file attributes	2015-03-25 13:27:57 +01:00
sysv	sysv: switch to simple_follow_link()	2015-05-10 22:18:26 -04:00
tracefs	tracing: Have mkdir and rmdir be part of tracefs	2015-02-03 12:48:43 -05:00
ubifs	ubifs: switch to simple_follow_link()	2015-05-10 22:18:25 -04:00
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
ufs	ufs: switch to simple_follow_link()	2015-05-10 22:18:25 -04:00
xfs	Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-06-22 12:51:21 -07:00
Kconfig	f2fs: relocate Kconfig from misc filesystems	2015-04-10 15:08:35 -07:00
Kconfig.binfmt	mm: split ET_DYN ASLR from mmap ASLR	2015-04-14 16:49:05 -07:00
Makefile	This adds the new tracefs file system. This has been in linux-next for	2015-04-14 10:22:29 -07:00
aio.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-16 23:27:56 -04:00
anon_inodes.c	…
attr.c	…
bad_inode.c	don't bother with most of the bad_file_ops methods	2015-02-20 04:03:58 -05:00
binfmt_aout.c	…
binfmt_elf.c	fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings	2015-05-28 18:25:18 -07:00
binfmt_elf_fdpic.c	…
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
binfmt_script.c	…
block_dev.c	direct-io: only inc/dec inode->i_dio_count for file systems	2015-04-24 15:45:28 -04:00
buffer.c	page_writeback: clean up mess around cancel_dirty_page()	2015-04-14 16:49:01 -07:00
char_dev.c	…
compat.c	…
compat_binfmt_elf.c	…
compat_ioctl.c	Bluetooth: bnep: Add support for get bnep features via ioctl	2015-04-03 23:21:34 +02:00
coredump.c	coredump: accept any write method	2015-04-11 22:29:39 -04:00
dax.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
dcache.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 18:57:44 -07:00
dcookies.c	…
direct-io.c	direct-io: only inc/dec inode->i_dio_count for file systems	2015-04-24 15:45:28 -04:00
drop_caches.c	vmscan: per memory cgroup slab shrinkers	2015-02-12 18:54:09 -08:00
eventfd.c	eventfd: don't take the spinlock in eventfd_poll	2015-02-17 14:34:52 -08:00
eventpoll.c	epoll: optimize setting task running after blocking	2015-02-13 21:21:40 -08:00
exec.c	parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures	2015-05-12 22:03:44 +02:00
fcntl.c	…
fhandle.c	vfs: read file_handle only once in handle_to_path	2015-06-02 10:29:07 -07:00
file.c	mm: rcu-protected get_mm_exe_file()	2015-04-17 09:04:07 -04:00
file_table.c	->aio_read and ->aio_write removed	2015-04-11 22:29:43 -04:00
filesystems.c	…
fs-writeback.c	fs: add dirtytime_expire_seconds sysctl	2015-03-17 12:23:32 -04:00
fs_pin.c	fs_pin: Allow for the possibility that m_list or s_list go unused.	2015-04-09 11:39:55 -05:00
fs_struct.c	…
inode.c	VFS/namei: make the use of touch_atime() in get_link() RCU-safe.	2015-05-15 01:06:27 -04:00
internal.h	trylock_super(): replacement for grab_super_passive()	2015-02-22 11:38:42 -05:00
ioctl.c	fsioctl.c: make generic_block_fiemap() signal-tolerant	2015-02-10 14:30:30 -08:00
libfs.c	new helper: free_page_put_link()	2015-05-11 08:13:13 -04:00
locks.c	proc: show locks in /proc/pid/fdinfo/X	2015-04-17 09:04:12 -04:00
mbcache.c	…
mount.h	new helper: __legitimize_mnt()	2015-05-11 08:13:14 -04:00
mpage.c	…
namei.c	turn user_{path_at,path,lpath,path_dir}() into static inlines	2015-05-15 01:10:45 -04:00
namespace.c	new helper: __legitimize_mnt()	2015-05-11 08:13:14 -04:00
no-block.c	…
nsfs.c	VFS: assorted weird filesystems: d_inode() annotations	2015-04-15 15:06:58 -04:00
open.c	VFS: Handle lower layer dentry/inode in pathwalk	2015-05-11 08:13:10 -04:00
pipe.c	VFS: assorted weird filesystems: d_inode() annotations	2015-04-15 15:06:58 -04:00
pnode.c	mnt: Don't propagate unmounts to locked mounts	2015-04-02 20:34:20 -05:00
pnode.h	mnt: Honor MNT_LOCKED when detaching mounts	2015-04-09 11:39:55 -05:00
posix_acl.c	VFS: assorted d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
proc_namespace.c	vfs: add support for a lazytime mount option	2015-02-05 02:45:00 -05:00
read_write.c	new_sync_write(): discard ->ki_pos unless the return value is positive	2015-04-11 22:29:46 -04:00
readdir.c	…
select.c	locking/arch: Rename set_mb() to smp_store_mb()	2015-05-19 08:32:00 +02:00
seq_file.c	bitmap, cpumask, nodemask: remove dedicated formatting functions	2015-02-13 21:21:39 -08:00
signalfd.c	…
splice.c	splice: sendfile() at once fails for big files	2015-05-06 09:27:41 -06:00
stack.c	…
stat.c	VFS: assorted d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
statfs.c	…
super.c	cleancache: remove limit on the number of cleancache enabled filesystems	2015-04-14 16:49:03 -07:00
sync.c	vfs: add support for a lazytime mount option	2015-02-05 02:45:00 -05:00
timerfd.c	…
utimes.c	…
xattr.c	…