Al Viro [Tue, 6 Dec 2011 18:32:36 +0000 (13:32 -0500)]
switch mnt_namespace ->root to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 6 Dec 2011 17:21:54 +0000 (12:21 -0500)]
vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
rationale: that stuff is far tighter bound to fs/namespace.c than to
the guts of procfs proper.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 08:19:09 +0000 (03:19 -0500)]
vfs: opencode mntget() mnt_set_mountpoint()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 08:06:56 +0000 (03:06 -0500)]
vfs: spread struct mount - remaining argument of next_mnt()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 07:35:16 +0000 (02:35 -0500)]
vfs: move fsnotify junk to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 07:25:17 +0000 (02:25 -0500)]
vfs: move mnt_devname
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 07:19:55 +0000 (02:19 -0500)]
vfs: move mnt_list to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 06:05:37 +0000 (01:05 -0500)]
vfs: switch pnode.h macros to struct mount *
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:57:42 +0000 (00:57 -0500)]
vfs: move the rest of int fields to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:50:41 +0000 (00:50 -0500)]
vfs: mnt_id/mnt_group_id moved
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:46:35 +0000 (00:46 -0500)]
vfs: mnt_ns moved to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:33:11 +0000 (00:33 -0500)]
vfs: spread struct mount - mntput_no_expire
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:30:56 +0000 (00:30 -0500)]
vfs: spread struct mount - do_add_mount and graft_tree
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:22:05 +0000 (00:22 -0500)]
vfs: take mnt_share/mnt_slave/mnt_slave_list and mnt_expire to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:10:28 +0000 (00:10 -0500)]
vfs: and now we can make ->mnt_master point to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:07:16 +0000 (00:07 -0500)]
vfs: take mnt_master to struct mount
make IS_MNT_SLAVE take struct mount * at the same time
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 05:01:17 +0000 (00:01 -0500)]
vfs: spread struct mount - remaining argument of mnt_set_mountpoint()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 04:59:29 +0000 (23:59 -0500)]
vfs: spread struct mount - propagate_mnt()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 04:56:26 +0000 (23:56 -0500)]
vfs: spread struct mount - shared subtree iterators
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 04:35:54 +0000 (23:35 -0500)]
vfs: spread struct mount - get_dominating_id / do_make_slave
next pile of horrors, similar to mnt_parent one; this time it's
mnt_master.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 04:24:33 +0000 (23:24 -0500)]
vfs: take mnt_child/mnt_mounts to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 03:53:09 +0000 (22:53 -0500)]
vfs: all counters taken to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 03:37:54 +0000 (22:37 -0500)]
vfs: spread struct mount - work with counters
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 03:25:07 +0000 (22:25 -0500)]
vfs: move mnt_mountpoint to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 03:19:58 +0000 (22:19 -0500)]
vfs: now it can be done - make mnt_parent point to struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 03:05:19 +0000 (22:05 -0500)]
vfs: mnt_parent moved to struct mount
the second victim...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 03:00:28 +0000 (22:00 -0500)]
vfs: spread struct mount - is_path_reachable
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:47:05 +0000 (21:47 -0500)]
vfs: spread struct mount - mnt_has_parent
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:35:16 +0000 (21:35 -0500)]
vfs: spread struct mount - do_umount/propagate_mount_busy
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:28:22 +0000 (21:28 -0500)]
vfs: spread struct mount mnt_set_mountpoint child argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:24:27 +0000 (21:24 -0500)]
vfs: spread struct mount - clone_mnt/copy_tree argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:15:14 +0000 (21:15 -0500)]
vfs: spread struct mount - shrink_submounts/select_submounts
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:07:43 +0000 (21:07 -0500)]
vfs: spread struct mount - umount_tree argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 02:01:32 +0000 (21:01 -0500)]
vfs: the first spoils - mnt_hash moved
taken out of struct vfsmount into struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:58:57 +0000 (20:58 -0500)]
vfs: spread struct mount to remaining users of ->mnt_hash
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:55:08 +0000 (20:55 -0500)]
vfs: spread struct mount - clone_mnt/copy_tree result
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:43:10 +0000 (20:43 -0500)]
vfs: spread struct mount - change_mnt_propagation/set_mnt_shared
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:38:33 +0000 (20:38 -0500)]
vfs: spread struct mount - alloc_vfsmnt/free_vfsmnt/mnt_alloc_id/mnt_free_id
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:01:19 +0000 (20:01 -0500)]
vfs: spread struct mount - tree_contains_unbindable
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 00:59:16 +0000 (19:59 -0500)]
vfs: spread struct mount - attach_recursive_mnt
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 00:54:23 +0000 (19:54 -0500)]
vfs: spread struct mount - mount group id handling
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 00:47:15 +0000 (19:47 -0500)]
vfs: spread struct mount - commit_tree
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 00:41:16 +0000 (19:41 -0500)]
vfs: spread struct mount - attach_mnt/detach_mnt
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Nov 2011 23:57:30 +0000 (18:57 -0500)]
vfs: spread struct mount - namespace.c internal iterators
next_mnt() return value, first argument
skip_mnt_tree() return value and argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Nov 2011 23:25:28 +0000 (18:25 -0500)]
vfs: spread struct mount - __propagate_umount() argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Nov 2011 23:22:03 +0000 (18:22 -0500)]
vfs: spread struct mount - __lookup_mnt() result
switch __lookup_mnt() to returning struct mount *; callers adjusted.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 23 Nov 2011 17:14:10 +0000 (12:14 -0500)]
vfs: start hiding vfsmount guts series
Almost all fields of struct vfsmount are used only by core VFS (and
a fairly small part of it, at that). The plan: embed struct vfsmount
into struct mount, making the latter visible only to core parts of VFS.
Then move fields from vfsmount to mount, eventually leaving only
mnt_root/mnt_sb/mnt_flags in struct vfsmount. Filesystem code still
gets pointers to struct vfsmount and remains unchanged; all such
pointers go to struct vfsmount embedded into the instances of struct
mount allocated by fs/namespace.c. When fs/namespace.c et.al. get
a pointer to vfsmount, they turn it into pointer to mount (using
container_of) and work with that.
This is the first part of series; struct mount is introduced,
allocation switched to using it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 4 Jan 2012 02:01:29 +0000 (21:01 -0500)]
vfs: fix the rest of sget() races
unfortunately, just checking MS_BORN after having grabbed ->s_umount in
sget() is not enough; places that pick superblock from a list and
grab s_umount shared need the same check in addition to checking for
->s_root; otherwise three-way race between failing mount, sget() and
such list-walker can leave us with list-walker coming *second*, when
temporary active ref grabbed by sget() (to be dropped when sget()
notices that original mount has failed by checking MS_BORN) has
lead to deactivate_locked_super() from failing ->mount() *not* doing
->kill_sb() and just releasing ->s_umount. Once sget() gets through
and notices that MS_BORN had never been set it will drop the active
ref and fs will be shut down and kicked out of all lists, but it's
too late for something like sync_supers().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 3 Jan 2012 03:28:36 +0000 (22:28 -0500)]
vfs: new helper - vfs_ustat()
... and bury user_get_super()/statfs_by_dentry() - they are
purely internal now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 9 Dec 2011 04:01:06 +0000 (23:01 -0500)]
vfs: live vfsmounts never have NULL ->mnt_sb
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 7 Dec 2011 23:21:57 +0000 (18:21 -0500)]
vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_root
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 9 Dec 2011 01:08:42 +0000 (20:08 -0500)]
get rid of timer in kern/acct.c
... and clean it up a bit, while we are at it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 19 Dec 2011 01:17:41 +0000 (20:17 -0500)]
vfs: pipe.c is really non-modular
... so no exitcalls there. Not much would work if pipe(2) would stop
working, after all...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 12 Dec 2011 20:51:45 +0000 (15:51 -0500)]
vfs: fix the stupidity with i_dentry in inode destructors
Seeing that just about every destructor got that INIT_LIST_HEAD() copied into
it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();
the cost of taking it into inode_init_always() will be negligible for pipes
and sockets and negative for everything else. Not to mention the removal of
boilerplate code from ->destroy_inode() instances...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 9 Dec 2011 13:06:57 +0000 (08:06 -0500)]
vfs: mnt_drop_write_file()
new helper (wrapper around mnt_drop_write()) to be used in pair with
mnt_want_write_file().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 9 Dec 2011 01:18:57 +0000 (20:18 -0500)]
constify seq_file stuff
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 13 Dec 2011 04:07:05 +0000 (23:07 -0500)]
vfs: make do_kern_mount() static
the only user outside of fs/namespace.c has died
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 13 Dec 2011 03:53:00 +0000 (22:53 -0500)]
vfs: convert fs_supers to hlist
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 17 Nov 2011 02:52:06 +0000 (21:52 -0500)]
make nfs_follow_remote_path() handle ERR_PTR() passed as root_mnt
... rather than duplicating that in callers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 07:22:06 +0000 (02:22 -0500)]
vfs: kill ->mnt_devname use in afs printks
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:14:54 +0000 (20:14 -0500)]
btrfs, nfs, apparmor: don't pull mnt_namespace.h for no reason...
it's not needed anymore; we used to, back when we had to do
mount_subtree() by hand, complete with put_mnt_ns() in it.
No more... Apparmor didn't need it since the __d_path() fix.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 01:08:53 +0000 (20:08 -0500)]
tomoyo: stop including hell knows what
tomoyo/realpath.c needs exactly one include - that of common.h. It pulls
everything the thing needs, without doing ridiculous garbage such as trying
to include ../../fs/internal.h. If that alone doesn't scream "layering
violation", I don't know what does; and these days it's all for nothing,
since it fortunately does not use any symbols defined in there...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 25 Nov 2011 00:31:36 +0000 (19:31 -0500)]
vfs: dentry_reset_mounted() doesn't use vfsmount argument
lose it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 17 Nov 2011 03:01:36 +0000 (22:01 -0500)]
unexport put_mnt_ns(), make create_mnt_ns() static outright
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 23 Nov 2011 17:27:01 +0000 (12:27 -0500)]
vfs: add missing parens in pnode.h macros
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Nov 2011 00:34:49 +0000 (19:34 -0500)]
vfs: more mnt_parent cleanups
a) mount --move is checking that ->mnt_parent is non-NULL before
looking if that parent happens to be shared; ->mnt_parent is never
NULL and it's not even an misspelled !mnt_has_parent()
b) pivot_root open-codes is_path_reachable(), poorly.
c) so does path_is_under(), while we are at it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Nov 2011 00:26:23 +0000 (19:26 -0500)]
vfs: new internal helper: mnt_has_parent(mnt)
vfsmounts have ->mnt_parent pointing either to a different vfsmount
or to itself; it's never NULL and termination condition in loops
traversing the tree towards root is mnt == mnt->mnt_parent. At least
one place (see the next patch) is confused about what's going on;
let's add an explicit helper checking it right way and use it in
all places where we need it. Not that there had been too many,
but...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Nov 2011 00:04:52 +0000 (19:04 -0500)]
vfs: kill pointless helpers in namespace.c
mnt_{inc,dec}_count() is not cleaner than doing the corresponding
mnt_add_count() directly and mnt_set_count() is not used at all.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 23 Nov 2011 17:03:18 +0000 (12:03 -0500)]
new helpers: fh_{want,drop}_write()
A bunch of places in nfsd does mnt_{want,drop}_write on vfsmount of
export of given fhandle. Switched to obvious inlined helpers...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 23 Nov 2011 16:57:51 +0000 (11:57 -0500)]
switch a bunch of places to mnt_want_write_file()
it's both faster (in case when file has been opened for write) and cleaner.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Tue, 22 Nov 2011 02:15:42 +0000 (21:15 -0500)]
trim fs/internal.h
some stuff in there can actually become static; some belongs to pnode.h
as it's a private interface between namespace.c and pnode.c...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 23 Oct 2011 22:49:54 +0000 (18:49 -0400)]
pull manipulations of rpc_cred inside alloc_nfs_open_context()
No need to duplicate them in both callers; make it return
ERR_PTR(-ENOMEM) on allocation failure instead of NULL and
it'll be able to report rpc_lookup_cred() failures just
fine. Callers are much happier that way...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Wed, 4 Jan 2012 01:32:13 +0000 (17:32 -0800)]
Revert "rtc: Disable the alarm in the hardware"
This reverts commit
c0afabd3d553c521e003779c127143ffde55a16f.
It causes failures on Toshiba laptops - instead of disabling the alarm,
it actually seems to enable it on the affected laptops, resulting in
(for example) the laptop powering on automatically five minutes after
shutdown.
There's a patch for it that appears to work for at least some people,
but it's too late to play around with this, so revert for now and try
again in the next merge window.
See for example
http://bugs.debian.org/652869
Reported-and-bisected-by: Andreas Friedrich <afrie@gmx.net> (Toshiba Tecra)
Reported-by: Antonio-M. Corbi Bellot <antonio.corbi@ua.es> (Toshiba Portege R500)
Reported-by: Marco Santos <marco.santos@waynext.com> (Toshiba Portege Z830)
Reported-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr> (Toshiba Portege R830)
Cc: Jonathan Nieder <jrnieder@gmail.com>
Requested-by: John Stultz <john.stultz@linaro.org>
Cc: stable@kernel.org # for the versions that applied this
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mandeep Singh Baines [Tue, 3 Jan 2012 22:41:13 +0000 (14:41 -0800)]
hung_task: fix false positive during vfork
vfork parent uninterruptibly and unkillably waits for its child to
exec/exit. This wait is of unbounded length. Ignore such waits
in the hung_task detector.
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Reported-by: Sasha Levin <levinsasha928@gmail.com>
LKML-Reference: <
1325344394.28904.43.camel@lappy>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Kacur <jkacur@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Tue, 3 Jan 2012 12:14:29 +0000 (13:14 +0100)]
security: Fix security_old_inode_init_security() when CONFIG_SECURITY is not set
Commit
1e39f384bb01 ("evm: fix build problems") makes the stub version
of security_old_inode_init_security() return 0 when CONFIG_SECURITY is
not set.
But that makes callers such as reiserfs_security_init() assume that
security_old_inode_init_security() has set name, value, and len
arguments properly - but security_old_inode_init_security() left them
uninitialized which then results in interesting failures.
Revert security_old_inode_init_security() to the old behavior of
returning EOPNOTSUPP since both callers (reiserfs and ocfs2) handle this
just fine.
[ Also fixed the S_PRIVATE(inode) case of the actual non-stub
security_old_inode_init_security() function to return EOPNOTSUPP
for the same reason, as pointed out by Mimi Zohar.
It got incorrectly changed to match the new function in commit
fb88c2b6cbb1: "evm: fix security/security_old_init_security return
code". - Linus ]
Reported-by: Jorge Bastos <mysql.jorge@decimal.pt>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander Müller [Fri, 30 Dec 2011 17:55:48 +0000 (12:55 -0500)]
drm/radeon/kms/atom: fix possible segfault in pm setup
If we end up with no power states, don't look up
current vddc.
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44130
agd5f: fix patch formatting
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Mon, 2 Jan 2012 20:34:03 +0000 (12:34 -0800)]
Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6
* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6:
dt/device: Fix auxdata matching to handle entries without a name override
Linus Torvalds [Mon, 2 Jan 2012 03:36:08 +0000 (19:36 -0800)]
Merge git://git./linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
netfilter: ctnetlink: fix timeout calculation
ipvs: try also real server with port 0 in backup server
skge: restore rx multicast filter on resume and after config changes
mlx4_en: nullify cq->vector field when closing completion queue
Linus Torvalds [Sat, 31 Dec 2011 19:55:06 +0000 (11:55 -0800)]
Merge branch 'fix/asoc' of git://git./linux/kernel/git/tiwai/sound
* 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8776: add missing break in sample size switch
Mauro Carvalho Chehab [Sat, 31 Dec 2011 13:32:03 +0000 (11:32 -0200)]
gspca: Fix falling back to lower isoc alt settings
The current gspca core code has a regression where it no longer properly
falls back to lower alt settings when there is not enough bandwidth.
This causes many iso based usb-1 cameras to not work when plugged into a
usb2 hub or a sandybridge chipset motherboard!
This patch fixes this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hugh Dickins [Sat, 31 Dec 2011 19:44:01 +0000 (11:44 -0800)]
futex: Fix uninterruptible loop due to gate_area
It was found (by Sasha) that if you use a futex located in the gate
area we get stuck in an uninterruptible infinite loop, much like the
ZERO_PAGE issue.
While looking at this problem, PeterZ realized you'll get into similar
trouble when hitting any install_special_pages() mapping. And are there
still drivers setting up their own special mmaps without page->mapping,
and without special VM or pte flags to make get_user_pages fail?
In most cases, if page->mapping is NULL, we do not need to retry at all:
Linus points out that even /proc/sys/vm/drop_caches poses no problem,
because it ends up using remove_mapping(), which takes care not to
interfere when the page reference count is raised.
But there is still one case which does need a retry: if memory pressure
called shmem_writepage in between get_user_pages_fast dropping page
table lock and our acquiring page lock, then the page gets switched from
filecache to swapcache (and ->mapping set to NULL) whatever the refcount.
Fault it back in to get the page->mapping needed for key->shared.inode.
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Xi Wang [Fri, 30 Dec 2011 15:40:17 +0000 (10:40 -0500)]
netfilter: ctnetlink: fix timeout calculation
The sanity check (timeout < 0) never works; the dividend is unsigned
and so is the division, which should have been a signed division.
long timeout = (ct->timeout.expires - jiffies) / HZ;
if (timeout < 0)
timeout = 0;
This patch converts the time values to signed for the division.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Julian Anastasov [Fri, 30 Dec 2011 05:19:02 +0000 (14:19 +0900)]
ipvs: try also real server with port 0 in backup server
We should not forget to try for real server with port 0
in the backup server when processing the sync message. We should
do it in all cases because the backup server can use different
forwarding method.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Florian Zumbiehl [Fri, 30 Dec 2011 17:30:09 +0000 (17:30 +0000)]
skge: restore rx multicast filter on resume and after config changes
Restore skge hardware registers for multicast filtering to their
appropriate values after system resume and after hardware restarts
that are done when changing certain settings.
Signed-off-by: Florian Zumbiehl <florz@florz.de>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yevgeny Petrilin [Thu, 29 Dec 2011 05:49:58 +0000 (05:49 +0000)]
mlx4_en: nullify cq->vector field when closing completion queue
Caused loss of connectivity when changing ring size.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 30 Dec 2011 21:45:34 +0000 (13:45 -0800)]
Merge branch 'fixes' of ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: 7237/1: PL330: Fix driver freeze
ARM: 7197/1: errata: Remove SMP dependency for erratum 751472
ARM: 7196/1: errata: Remove SMP dependency for erratum 720789
ARM: 7220/1: mmc: mmci: Fixup error handling for dma
ARM: 7214/1: mmc: mmci: Fixup handling of MCI_STARTBITERR
Linus Torvalds [Fri, 30 Dec 2011 21:43:45 +0000 (13:43 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/arm/arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: plat-orion: make gpiochip label unique
enable uncompress log on cpuimx35sd
cpuimx35: fix touchscreen support
cpuimx35sd: fix Kconfig
clock-imx35: fix reboot in internal boot mode
dma: MX3_IPU fix depends
imx_v4_v5_defconfig: update default configuration
cpuimx25sd: fix Kconfig
arm/imx: fix cpufreq section mismatch
ARM:imx:fix pwm period value
ARM: OMAP: hwmod data: fix iva and mailbox hwmods for OMAP 3
Linus Torvalds [Fri, 30 Dec 2011 21:42:41 +0000 (13:42 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: sentelic - fix retrieving number of buttons
Input: sentelic - release mutex upon register write failure
Linus Torvalds [Fri, 30 Dec 2011 21:34:22 +0000 (13:34 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: disable use of dcache for readdir etc.
Linus Torvalds [Fri, 30 Dec 2011 21:34:00 +0000 (13:34 -0800)]
Merge branch 'v3.2-samsung-fixes-4' of git://git./linux/kernel/git/kgene/linux-samsung
* 'v3.2-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Remove duplicated SROMC static memory mapping
ARM: SAMSUNG: Fix build error when selecting CPU_FREQ_S3C24XX_DEBUGFS on S3C2440
Linus Torvalds [Fri, 30 Dec 2011 21:24:40 +0000 (13:24 -0800)]
Revert "clockevents: Set noop handler in clockevents_exchange_device()"
This reverts commit
de28f25e8244c7353abed8de0c7792f5f883588c.
It results in resume problems for various people. See for example
http://thread.gmane.org/gmane.linux.kernel/1233033
http://thread.gmane.org/gmane.linux.kernel/1233389
http://thread.gmane.org/gmane.linux.kernel/1233159
http://thread.gmane.org/gmane.linux.kernel/1227868/focus=1230877
and the fedora and ubuntu bug reports
https://bugzilla.redhat.com/show_bug.cgi?id=767248
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/904569
which got bisected down to the stable version of this commit.
Reported-by: Jonathan Nieder <jrnieder@gmail.com>
Reported-by: Phil Miller <mille121@illinois.edu>
Reported-by: Philip Langdale <philipl@overt.org>
Reported-by: Tim Gardner <tim.gardner@canonical.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg KH <gregkh@suse.de>
Cc: stable@kernel.org # for stable kernels that applied the original
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 30 Dec 2011 20:13:03 +0000 (12:13 -0800)]
Merge git://www.linux-watchdog.org/linux-watchdog
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: iTCO_wdt.c - problems with newer hardware due to SMI clearing (part 2)
watchdog: hpwdt: Changes to handle NX secure bit in 32bit path
watchdog: sp805: Fix section mismatch in ID table.
watchdog: move coh901327 state holders
Linus Torvalds [Fri, 30 Dec 2011 01:36:15 +0000 (17:36 -0800)]
Merge branch 'iommu/fixes' of git://git./linux/kernel/git/joro/iommu
* 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu: Initialize domain->handler in iommu_domain_alloc()
Linus Torvalds [Fri, 30 Dec 2011 01:35:33 +0000 (17:35 -0800)]
Merge git://git./linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
packet: fix possible dev refcnt leak when bind fail
netem: dont call vfree() under spinlock and BH disabled
netfilter: ctnetlink: fix scheduling while atomic if helper is autoloaded
netfilter: ctnetlink: fix return value of ctnetlink_get_expect()
Linus Torvalds [Fri, 30 Dec 2011 01:09:16 +0000 (17:09 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Fix raw_spin_unlock_irqrestore() usage
oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue
Linus Torvalds [Fri, 30 Dec 2011 01:05:45 +0000 (17:05 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: log all dirty inodes in xfs_fs_sync_fs
xfs: log the inode in ->write_inode calls for kupdate
Linus Torvalds [Fri, 30 Dec 2011 00:33:37 +0000 (16:33 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix blk_queue_end_tag()
block: re-use existing 'reading' variable instead of checking direction again
block, cfq: fix empty queue crash caused by request merge
Hillf Danton [Wed, 28 Dec 2011 23:57:16 +0000 (15:57 -0800)]
mm: hugetlb: fix non-atomic enqueue of huge page
If a huge page is enqueued under the protection of hugetlb_lock, then the
operation is atomic and safe.
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@vger.kernel.org> [2.6.37+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andreas Schwab [Wed, 28 Dec 2011 23:57:15 +0000 (15:57 -0800)]
procfs: do not confuse jiffies with cputime64_t
Commit
2a95ea6c0d129b4 ("procfs: do not overflow get_{idle,iowait}_time
for nohz") did not take into account that one some architectures jiffies
and cputime use different units.
This causes get_idle_time() to return numbers in the wrong units, making
the idle time fields in /proc/stat wrong.
Instead of converting the usec value returned by
get_cpu_{idle,iowait}_time_us to units of jiffies, use the new function
usecs_to_cputime64 to convert it to the correct unit of cputime64_t.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Artem S. Tashkinov" <t.artem@mailcity.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KOSAKI Motohiro [Wed, 28 Dec 2011 23:57:11 +0000 (15:57 -0800)]
mm/mempolicy.c: refix mbind_range() vma issue
commit
8aacc9f550 ("mm/mempolicy.c: fix pgoff in mbind vma merge") is the
slightly incorrect fix.
Why? Think following case.
1. map 4 pages of a file at offset 0
[0123]
2. map 2 pages just after the first mapping of the same file but with
page offset 2
[0123][23]
3. mbind() 2 pages from the first mapping at offset 2.
mbind_range() should treat new vma is,
[0123][23]
|23|
mbind vma
but it does
[0123][23]
|01|
mbind vma
Oops. then, it makes wrong vma merge and splitting ([01][0123] or similar).
This patch fixes it.
[testcase]
test result - before the patch
case4: 126: test failed. expect '2,4', actual '2,2,2'
case5: passed
case6: passed
case7: passed
case8: passed
case_n: 246: test failed. expect '4,2', actual '1,4'
------------[ cut here ]------------
kernel BUG at mm/filemap.c:135!
invalid opcode: 0000 [#4] SMP DEBUG_PAGEALLOC
(snip long bug on messages)
test result - after the patch
case4: passed
case5: passed
case6: passed
case7: passed
case8: passed
case_n: passed
source: mbind_vma_test.c
============================================================
#include <numaif.h>
#include <numa.h>
#include <sys/mman.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
static unsigned long pagesize;
void* mmap_addr;
struct bitmask *nmask;
char buf[1024];
FILE *file;
char retbuf[10240] = "";
int mapped_fd;
char *rubysrc = "ruby -e '\
pid = %d; \
vstart = 0x%llx; \
vend = 0x%llx; \
s = `pmap -q #{pid}`; \
rary = []; \
s.each_line {|line|; \
ary=line.split(\" \"); \
addr = ary[0].to_i(16); \
if(vstart <= addr && addr < vend) then \
rary.push(ary[1].to_i()/4); \
end; \
}; \
print rary.join(\",\"); \
'";
void init(void)
{
void* addr;
char buf[128];
nmask = numa_allocate_nodemask();
numa_bitmask_setbit(nmask, 0);
pagesize = getpagesize();
sprintf(buf, "%s", "mbind_vma_XXXXXX");
mapped_fd = mkstemp(buf);
if (mapped_fd == -1)
perror("mkstemp "), exit(1);
unlink(buf);
if (lseek(mapped_fd, pagesize*8, SEEK_SET) < 0)
perror("lseek "), exit(1);
if (write(mapped_fd, "\0", 1) < 0)
perror("write "), exit(1);
addr = mmap(NULL, pagesize*8, PROT_NONE,
MAP_SHARED, mapped_fd, 0);
if (addr == MAP_FAILED)
perror("mmap "), exit(1);
if (mprotect(addr+pagesize, pagesize*6, PROT_READ|PROT_WRITE) < 0)
perror("mprotect "), exit(1);
mmap_addr = addr + pagesize;
/* make page populate */
memset(mmap_addr, 0, pagesize*6);
}
void fin(void)
{
void* addr = mmap_addr - pagesize;
munmap(addr, pagesize*8);
memset(buf, 0, sizeof(buf));
memset(retbuf, 0, sizeof(retbuf));
}
void mem_bind(int index, int len)
{
int err;
err = mbind(mmap_addr+pagesize*index, pagesize*len,
MPOL_BIND, nmask->maskp, nmask->size, 0);
if (err)
perror("mbind "), exit(err);
}
void mem_interleave(int index, int len)
{
int err;
err = mbind(mmap_addr+pagesize*index, pagesize*len,
MPOL_INTERLEAVE, nmask->maskp, nmask->size, 0);
if (err)
perror("mbind "), exit(err);
}
void mem_unbind(int index, int len)
{
int err;
err = mbind(mmap_addr+pagesize*index, pagesize*len,
MPOL_DEFAULT, NULL, 0, 0);
if (err)
perror("mbind "), exit(err);
}
void Assert(char *expected, char *value, char *name, int line)
{
if (strcmp(expected, value) == 0) {
fprintf(stderr, "%s: passed\n", name);
return;
}
else {
fprintf(stderr, "%s: %d: test failed. expect '%s', actual '%s'\n",
name, line,
expected, value);
// exit(1);
}
}
/*
AAAA
PPPPPPNNNNNN
might become
PPNNNNNNNNNN
case 4 below
*/
void case4(void)
{
init();
sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
mem_bind(0, 4);
mem_unbind(2, 2);
file = popen(buf, "r");
fread(retbuf, sizeof(retbuf), 1, file);
Assert("2,4", retbuf, "case4", __LINE__);
fin();
}
/*
AAAA
PPPPPPNNNNNN
might become
PPPPPPPPPPNN
case 5 below
*/
void case5(void)
{
init();
sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
mem_bind(0, 2);
mem_bind(2, 2);
file = popen(buf, "r");
fread(retbuf, sizeof(retbuf), 1, file);
Assert("4,2", retbuf, "case5", __LINE__);
fin();
}
/*
AAAA
PPPPNNNNXXXX
might become
PPPPPPPPPPPP 6
*/
void case6(void)
{
init();
sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
mem_bind(0, 2);
mem_bind(4, 2);
mem_bind(2, 2);
file = popen(buf, "r");
fread(retbuf, sizeof(retbuf), 1, file);
Assert("6", retbuf, "case6", __LINE__);
fin();
}
/*
AAAA
PPPPNNNNXXXX
might become
PPPPPPPPXXXX 7
*/
void case7(void)
{
init();
sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
mem_bind(0, 2);
mem_interleave(4, 2);
mem_bind(2, 2);
file = popen(buf, "r");
fread(retbuf, sizeof(retbuf), 1, file);
Assert("4,2", retbuf, "case7", __LINE__);
fin();
}
/*
AAAA
PPPPNNNNXXXX
might become
PPPPNNNNNNNN 8
*/
void case8(void)
{
init();
sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
mem_bind(0, 2);
mem_interleave(4, 2);
mem_interleave(2, 2);
file = popen(buf, "r");
fread(retbuf, sizeof(retbuf), 1, file);
Assert("2,4", retbuf, "case8", __LINE__);
fin();
}
void case_n(void)
{
init();
sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
/* make redundunt mappings [0][1234][34][7] */
mmap(mmap_addr + pagesize*4, pagesize*2, PROT_READ|PROT_WRITE,
MAP_FIXED|MAP_SHARED, mapped_fd, pagesize*3);
/* Expect to do nothing. */
mem_unbind(2, 2);
file = popen(buf, "r");
fread(retbuf, sizeof(retbuf), 1, file);
Assert("4,2", retbuf, "case_n", __LINE__);
fin();
}
int main(int argc, char** argv)
{
case4();
case5();
case6();
case7();
case8();
case_n();
return 0;
}
=============================================================
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Caspar Zhang <caspar@casparzhang.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: <stable@vger.kernel.org> [3.1.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>