GitHub/LineageOS/android_kernel_motorola_exynos9610.git
12 years agoreiserfs: cleanup reiserfs_fill_super a bit
Artem Bityutskiy [Fri, 1 Jun 2012 14:18:04 +0000 (17:18 +0300)]
reiserfs: cleanup reiserfs_fill_super a bit

We have the reiserfs superblock pointer in the 'sbi' variable in this
function, no need to use the 'REISERFS_SB(s)' macro which is the same.
This is jut a small clean-up.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agosch_atm.c: get rid of poinless extern
Al Viro [Thu, 19 Apr 2012 22:17:15 +0000 (18:17 -0400)]
sch_atm.c: get rid of poinless extern

sockfd_lookup() is declared in linux/net.h, which is pulled by
linux/skbuff.h (and needed for a lot of other stuff in sch_atm.c
anyway).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agounexport do_munmap()
Al Viro [Thu, 31 May 2012 00:19:20 +0000 (20:19 -0400)]
unexport do_munmap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agonew helper: vm_mmap_pgoff()
Al Viro [Thu, 31 May 2012 00:17:35 +0000 (20:17 -0400)]
new helper: vm_mmap_pgoff()

take it to mm/util.c, convert vm_mmap() to use of that one and
take it to mm/util.c as well, convert both sys_mmap_pgoff() to
use of vm_mmap_pgoff()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agokill do_mmap() completely
Al Viro [Thu, 31 May 2012 00:11:57 +0000 (20:11 -0400)]
kill do_mmap() completely

just pull into vm_mmap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch aio and shm to do_mmap_pgoff(), make do_mmap() static
Al Viro [Thu, 31 May 2012 00:08:42 +0000 (20:08 -0400)]
switch aio and shm to do_mmap_pgoff(), make do_mmap() static

after all, 0 bytes and 0 pages is the same thing...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agotake calculation of final prot in security_mmap_file() into a helper
Al Viro [Wed, 30 May 2012 23:58:30 +0000 (19:58 -0400)]
take calculation of final prot in security_mmap_file() into a helper

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agomove security_mmap_addr() to saner place
Al Viro [Wed, 30 May 2012 21:13:15 +0000 (17:13 -0400)]
move security_mmap_addr() to saner place

it really should be done by get_unmapped_area(); that cuts down on
the amount of callers considerably and it's the right place for
that stuff anyway.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agotake security_mmap_file() outside of ->mmap_sem
Al Viro [Wed, 30 May 2012 21:11:23 +0000 (17:11 -0400)]
take security_mmap_file() outside of ->mmap_sem

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agosplit ->file_mmap() into ->mmap_addr()/->mmap_file()
Al Viro [Wed, 30 May 2012 17:30:51 +0000 (13:30 -0400)]
split ->file_mmap() into ->mmap_addr()/->mmap_file()

... i.e. file-dependent and address-dependent checks.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agosplit cap_mmap_addr() out of cap_file_mmap()
Al Viro [Wed, 30 May 2012 17:11:37 +0000 (13:11 -0400)]
split cap_mmap_addr() out of cap_file_mmap()

... switch callers.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agounexport do_mmap()
Al Viro [Wed, 30 May 2012 16:09:53 +0000 (12:09 -0400)]
unexport do_mmap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoia64 perfmon: fix get_unmapped_area() use there
Al Viro [Wed, 30 May 2012 15:55:49 +0000 (11:55 -0400)]
ia64 perfmon: fix get_unmapped_area() use there

get_unmapped_area() returns -E... on failure, not 0.  Moreover, the
wrapper around it is completely pointless.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agomerge do_mremap() into sys_mremap()
Al Viro [Wed, 30 May 2012 15:32:04 +0000 (11:32 -0400)]
merge do_mremap() into sys_mremap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoia64, sparc64: convert wrappers around do_mremap() to sys_mremap()
Al Viro [Wed, 30 May 2012 06:12:40 +0000 (02:12 -0400)]
ia64, sparc64: convert wrappers around do_mremap() to sys_mremap()

they contain open-coded sys_mremap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobinfmt_flat: use vm_munmap, we are missing ->mmap_sem there
Al Viro [Wed, 30 May 2012 05:56:23 +0000 (01:56 -0400)]
binfmt_flat: use vm_munmap, we are missing ->mmap_sem there

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobinfmt_elf: switch elf_map() to vm_mmap/vm_munmap
Al Viro [Wed, 30 May 2012 05:49:38 +0000 (01:49 -0400)]
binfmt_elf: switch elf_map() to vm_mmap/vm_munmap

No reason to hold ->mmap_sem over the sequence

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: umount_tree() might be called on subtree that had never made it
Al Viro [Wed, 30 May 2012 02:03:48 +0000 (22:03 -0400)]
vfs: umount_tree() might be called on subtree that had never made it

__mnt_make_shortterm() in there undoes the effect of __mnt_make_longterm()
we'd done back when we set ->mnt_ns non-NULL; it should not be done to
vfsmounts that had never gone through commit_tree() and friends.  Kudos to
lczerner for catching that one...

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agopipe: return -ENOIOCTLCMD instead of -EINVAL on unknown ioctl command
Will Deacon [Fri, 25 May 2012 10:39:13 +0000 (11:39 +0100)]
pipe: return -ENOIOCTLCMD instead of -EINVAL on unknown ioctl command

As described in commit 07d106d0a ("vfs: fix up ENOIOCTLCMD error
handling"), drivers should return -ENOIOCTLCMD if they receive an ioctl
command which they don't understand. Doing so will result in -ENOTTY
being returned to userspace, which matches the behaviour of the compat
layer if it fails to translate an ioctl command.

This patch fixes the pipe ioctl to return -ENOIOCTLCMD instead of
-EINVAL when passed an unknown ioctl command.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: remove unused __d_splice_alias argument
J. Bruce Fields [Wed, 9 May 2012 21:18:06 +0000 (17:18 -0400)]
vfs: remove unused __d_splice_alias argument

Nobody sets want_disconn any more.

Reported-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: stop d_splice_alias creating directory aliases
J. Bruce Fields [Wed, 9 May 2012 21:18:05 +0000 (17:18 -0400)]
vfs: stop d_splice_alias creating directory aliases

A directory should never have more than one dentry pointing to it.

But d_splice_alias() will add one if it finds a directory with an
already-existing non-DISCONNECTED dentry.

I can't find an obvious reproducer, but I also can't see what prevents
d_splice_alias() from encountering such a case.

It therefore seems safest to allow d_splice_alias to use any dentry it
finds.

(Prior to the removal of dentry_unhash() from vfs_rmdir(), around v3.0,
this could cause an nfsd deadlock like this:

- Somebody attempts to remove a non-empty directory.
- The dentry_unhash() in vfs_rmdir() unhashes the dentry
  pointing to the non-empty directory.
- ->rmdir() then fails with -ENOTEMPTY
- Before the vfs_rmdir() caller reaches dput(), an nfsd process
  in rename looks up the directory by filehandle; at the end of
  that lookup, this dentry is found by d_alloc_anon(), and a
  reference is taken on it, preventing dput() from removing it.
- A regular lookup of the directory calls d_splice_alias(),
  finds only an unhashed (not a DISCONNECTED) dentry, and
  insteads adds a new one, so the directory now has two
  dentries.
- The nfsd process in rename, which was previously looking up
  the source directory of the rename, now looks up the target
  directory (which is the same), and gets the dentry newly
  created by the previous lookup.
- The rename, seeing two different dentries, assumes this is a
  cross-directory rename and attempts to take the i_mutex on the
  directory twice.

That reproducer no longer exists, but I don't think there was anything
fundamentally incorrect about the vfs_rmdir() behavior there, so I think
the real fault was here in d_splice_alias().)

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoi810: switch to vm_mmap()
Al Viro [Wed, 30 May 2012 01:24:36 +0000 (21:24 -0400)]
i810: switch to vm_mmap()

Weirdness around do_mmap() in there does not rely on ->mmap_sem for
exclusion, so no need to keep it under that.  As the result, we can
turn that do_mmap() into vm_mmap().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agofsnotify: remove unused parameter from send_to_group()
Dan Carpenter [Tue, 29 May 2012 18:02:24 +0000 (11:02 -0700)]
fsnotify: remove unused parameter from send_to_group()

We don't use "mnt" anymore in send_to_group() after 1968f5eed5 ("fanotify:
use both marks when possible") was applied.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agofsnotify: handle subfiles' perm events
Naohiro Aota [Tue, 29 May 2012 18:02:24 +0000 (11:02 -0700)]
fsnotify: handle subfiles' perm events

Recently I'm working on fanotify and found the following strange
behaviors.

I wrote a program to set fanotify_mark on "/tmp/block" and FAN_DENY
all events notified.

fanotify_mask = FAN_ALL_EVENTS | FAN_ALL_PERM_EVENTS | FAN_EVENT_ON_CHILD:
$ cd /tmp/block; cat foo
cat: foo: Operation not permitted

Operation on the file is blocked as expected.

But,

fanotify_mask = FAN_ALL_PERM_EVENTS | FAN_EVENT_ON_CHILD:
$ cd /tmp/block; cat foo
aaa

It's not blocked anymore.  This is confusing behavior.  Also reading
commit "fsnotify: call fsnotify_parent in perm events", it seems like
fsnotify should handle subfiles' perm events as well as the other notify
events.

With this patch, regardless of FAN_ALL_EVENTS set or not:
$ cd /tmp/block; cat foo
cat: foo: Operation not permitted

Operation on the file is now blocked properly.

FS_OPEN_PERM and FS_ACCESS_PERM are not listed on FS_EVENTS_POSS_ON_CHILD.
 Due to fsnotify_inode_watches_children() check, if you only specify only
these events as fsnotify_mask, you don't get subfiles' perm events
notified.

This patch add the events to FS_EVENTS_POSS_ON_CHILD to get them notified
even if only these events are specified to fsnotify_mask.

Signed-off-by: Naohiro Aota <naota@elisp.net>
Cc: Eric Paris <eparis@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: increment iversion when a file is truncated
Dmitry Kasatkin [Tue, 29 May 2012 18:02:21 +0000 (11:02 -0700)]
vfs: increment iversion when a file is truncated

When a file is truncated with truncate()/ftruncate() and then closed,
iversion is not updated.  This patch uses ATTR_SIZE flag as an indication
to increment iversion.

Mimi said:

On fput(), i_version is used to detect and flag files that have changed
and need to be re-measured in the IMA measurement policy.  When a file
is truncated with truncate()/ftruncate() and then closed, i_version is
not updated.  As a result, although the file has changed, it will not be
re-measured and added to the IMA measurement list on subsequent access.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agofs: Move bh_cachep to the __read_mostly section
Shai Fultheim [Tue, 15 May 2012 09:29:52 +0000 (12:29 +0300)]
fs: Move bh_cachep to the __read_mostly section

bh_cachep is only written to once on initialization, so move it to the
__read_mostly section.

Signed-off-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Vlad Zolotarov <vlad@scalemp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agofs: move file_remove_suid() to fs/inode.c
Cong Wang [Tue, 15 May 2012 06:57:33 +0000 (14:57 +0800)]
fs: move file_remove_suid() to fs/inode.c

file_remove_suid() is a generic function operates on struct file,
it almost has no relations with file mapping, so move it to fs/inode.c.

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agojffs2: get rid of jffs2_sync_super
Artem Bityutskiy [Mon, 7 May 2012 16:56:53 +0000 (19:56 +0300)]
jffs2: get rid of jffs2_sync_super

Currently JFFS2 file-system maps the VFS "superblock" abstraction to the
write-buffer. Namely, it uses VFS services to synchronize the write-buffer
periodically.

The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblock using the '->write_super()' call-back. But the
problem with this thread is that it wastes power by waking up the system every
5 seconds no matter what. So we want to kill it completely and thus, we need to
make file-systems to stop using the '->write_super' VFS service, and then
remove it together with the kernel thread.

This patch switches the JFFS2 write-buffer management from
'->write_super()'/'->s_dirt' to a delayed work. Instead of setting the 's_dirt'
flag we just schedule a delayed work for synchronizing the write-buffer.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agojffs2: remove unnecessary GC pass on sync
Artem Bityutskiy [Mon, 7 May 2012 16:56:52 +0000 (19:56 +0300)]
jffs2: remove unnecessary GC pass on sync

We do not need to call 'jffs2_write_super()' on sync. This function
causes a GC pass to make sure the current contents is pushed out with
the data which we already have on the media.

But this is not needed on unmount and only slows sync down unnecessarily.
It is enough to just sync the write-buffer.

This call was added by one of the generic VFS rework patch-sets,
see d579ed00aa96a7f7486978540a0d7cecaff742ae.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agojffs2: remove unnecessary GC pass on umount
Artem Bityutskiy [Mon, 7 May 2012 16:56:51 +0000 (19:56 +0300)]
jffs2: remove unnecessary GC pass on umount

We do not need to call 'jffs2_write_super()' on unmount. This function
causes a GC pass to make sure the current contents is pushed out with
the data which we already have on the media.

But this is not needed on unmount and only slows unmount down unnecessarily.
It is enough to just sync the write-buffer.

This call was added by one of the generic VFS rework patch-sets,
see 8c85e125124a473d6f3e9bb187b0b84207f81d91.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agojffs2: remove lock_super
Artem Bityutskiy [Mon, 7 May 2012 16:56:50 +0000 (19:56 +0300)]
jffs2: remove lock_super

We do not need 'lock_super()'/'unlock_super()' in JFFS2 - kill them.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobury __kernel_nlink_t, make internal nlink_t consistent
Al Viro [Sat, 19 May 2012 14:25:23 +0000 (10:25 -0400)]
bury __kernel_nlink_t, make internal nlink_t consistent

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoparisc: get rid of nlink_t, switch to explicitly-sized type
Al Viro [Sat, 19 May 2012 14:17:45 +0000 (10:17 -0400)]
parisc: get rid of nlink_t, switch to explicitly-sized type

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agopowerpc: get rid of nlink_t uses, switch to explicitly-sized type
Al Viro [Sat, 19 May 2012 14:16:30 +0000 (10:16 -0400)]
powerpc: get rid of nlink_t uses, switch to explicitly-sized type

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agomips: get rid of nlink_t, use explictly-sized type (__u32 in all cases)
Al Viro [Sat, 19 May 2012 14:13:52 +0000 (10:13 -0400)]
mips: get rid of nlink_t, use explictly-sized type (__u32 in all cases)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agomode_t whack-a-mole: ->is_visible() returns umode_t...
Al Viro [Sat, 19 May 2012 14:00:52 +0000 (10:00 -0400)]
mode_t whack-a-mole: ->is_visible() returns umode_t...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoget rid of idiotic misplaced __kernel_mode_t in ncfps kernel-private data structure
Al Viro [Sat, 19 May 2012 13:54:29 +0000 (09:54 -0400)]
get rid of idiotic misplaced __kernel_mode_t in ncfps kernel-private data structure

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobrlocks/lglocks: API cleanups
Andi Kleen [Tue, 8 May 2012 04:02:02 +0000 (13:32 +0930)]
brlocks/lglocks: API cleanups

lglocks and brlocks are currently generated with some complicated macros
in lglock.h.  But there's no reason to not just use common utility
functions and put all the data into a common data structure.

In preparation, this patch changes the API to look more like normal
function calls with pointers, not magic macros.

The patch is rather large because I move over all users in one go to keep
it bisectable.  This impacts the VFS somewhat in terms of lines changed.
But no actual behaviour change.

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobrlocks/lglocks: turn into functions
Andi Kleen [Tue, 8 May 2012 04:02:24 +0000 (13:32 +0930)]
brlocks/lglocks: turn into functions

lglocks and brlocks are currently generated with some complicated macros
in lglock.h.  But there's no reason to not just use common utility
functions and put all the data into a common data structure.

Since there are at least two users it makes sense to share this code in a
library.  This is also easier maintainable than a macro forest.

This will also make it later possible to dynamically allocate lglocks and
also use them in modules (this would both still need some additional, but
now straightforward, code)

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agolglock: remove online variants of lock
Rusty Russell [Tue, 8 May 2012 03:59:45 +0000 (13:29 +0930)]
lglock: remove online variants of lock

Optimizing the slow paths adds a lot of complexity.  If you need to
grab every lock often, you have other problems.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoocfs: simplify symlink handling
Al Viro [Thu, 3 May 2012 14:14:29 +0000 (10:14 -0400)]
ocfs: simplify symlink handling

seeing that "fast" symlinks still get allocation + copy, we might as
well simply switch them to pagecache-based variant of ->follow_link();
just need an appropriate ->readpage() for them...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoget rid of pointless allocations and copying in ecryptfs_follow_link()
Al Viro [Thu, 3 May 2012 13:34:20 +0000 (09:34 -0400)]
get rid of pointless allocations and copying in ecryptfs_follow_link()

switch to generic_readlink(), while we are at it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: assorted endianness annotations
Al Viro [Tue, 17 Apr 2012 20:41:13 +0000 (16:41 -0400)]
hpfs: assorted endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: annotate ea
Al Viro [Tue, 17 Apr 2012 20:26:46 +0000 (16:26 -0400)]
hpfs: annotate ea

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: annotate struct hpfs_dirent
Al Viro [Tue, 17 Apr 2012 20:20:49 +0000 (16:20 -0400)]
hpfs: annotate struct hpfs_dirent

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: annotate struct anode
Al Viro [Tue, 17 Apr 2012 20:11:25 +0000 (16:11 -0400)]
hpfs: annotate struct anode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: annotate struct fnode
Al Viro [Tue, 17 Apr 2012 20:09:25 +0000 (16:09 -0400)]
hpfs: annotate struct fnode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: annotate btree nodes, get rid of bitfields mess
Al Viro [Tue, 17 Apr 2012 19:59:35 +0000 (15:59 -0400)]
hpfs: annotate btree nodes, get rid of bitfields mess

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: annotate struct dnode
Al Viro [Tue, 17 Apr 2012 19:32:22 +0000 (15:32 -0400)]
hpfs: annotate struct dnode

little-endians...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: bitmaps are little-endian
Al Viro [Tue, 17 Apr 2012 19:28:51 +0000 (15:28 -0400)]
hpfs: bitmaps are little-endian

annotate properly...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: get rid of bitfields in struct fnode
Al Viro [Fri, 6 Apr 2012 18:30:07 +0000 (14:30 -0400)]
hpfs: get rid of bitfields in struct fnode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: get rid of bitfields endianness wanking in extended_attribute
Al Viro [Fri, 6 Apr 2012 17:21:09 +0000 (13:21 -0400)]
hpfs: get rid of bitfields endianness wanking in extended_attribute

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agofs: fix inode.c kernel-doc warnings
Randy Dunlap [Wed, 18 Apr 2012 00:03:25 +0000 (17:03 -0700)]
fs: fix inode.c kernel-doc warnings

Fix kernel-doc warnings in fs/inode.c:

Warning(fs/inode.c:1493): No description found for parameter 'path'
Warning(fs/inode.c:1493): Excess function parameter 'mnt' description in 'touch_atime'
Warning(fs/inode.c:1493): Excess function parameter 'dentry' description in 'touch_atime'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agohpfs: endianness bugs
Al Viro [Fri, 13 Apr 2012 05:24:37 +0000 (01:24 -0400)]
hpfs: endianness bugs

a couple of le32 and le16 used with wrong le..._to_cpu(), plus
idiotic use of le32_to_cpu() on 1-bit bitfield

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agobtrfs: trivial endianness annotations
Al Viro [Fri, 13 Apr 2012 15:03:55 +0000 (11:03 -0400)]
btrfs: trivial endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoocfs2: kill endianness abuses in blockcheck.c
Al Viro [Thu, 12 Apr 2012 23:58:53 +0000 (19:58 -0400)]
ocfs2: kill endianness abuses in blockcheck.c

ocfs2_block_check is for little-endian contents; if we just want to
its fields converted to host-endian in a couple of functions, just
put those values into local u32 and u16...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoocfs2: deal with __user misannotations
Al Viro [Thu, 12 Apr 2012 23:52:19 +0000 (19:52 -0400)]
ocfs2: deal with __user misannotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoocfs2: trivial endianness misannotations
Al Viro [Thu, 12 Apr 2012 22:47:13 +0000 (18:47 -0400)]
ocfs2: trivial endianness misannotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoaffs: bury unused macros
Al Viro [Fri, 6 Apr 2012 05:40:50 +0000 (01:40 -0400)]
affs: bury unused macros

... unused since 2.4.4.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agokill v9fs_dentry_from_dir_inode()
Al Viro [Tue, 3 Apr 2012 00:02:53 +0000 (20:02 -0400)]
kill v9fs_dentry_from_dir_inode()

In *all* callers we have a dentry of child of that directory.
Just use ->d_parent of that one, for fsck sake...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoselinuxfs snprintf() misuses
Al Viro [Mon, 2 Apr 2012 23:40:47 +0000 (19:40 -0400)]
selinuxfs snprintf() misuses

a) %d does _not_ produce a page worth of output
b) snprintf() doesn't return negatives - it used to in old glibc, but
that's the kernel...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoceph: move encode_fh to new API
Sage Weil [Thu, 5 Apr 2012 19:07:36 +0000 (12:07 -0700)]
ceph: move encode_fh to new API

Use parent_inode has a flag for whether nfsd wants a connectable fh, but
generate one opportunistically so that we can take advantage of the
additional info in there.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years ago->encode_fh() API change
Al Viro [Mon, 2 Apr 2012 18:34:06 +0000 (14:34 -0400)]
->encode_fh() API change

pass inode + parent's inode or NULL instead of dentry + bool saying
whether we want the parent or not.

NOTE: that needs ceph fix folded in.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoubifs: use generic_fillattr()
Al Viro [Mon, 2 Apr 2012 18:25:07 +0000 (14:25 -0400)]
ubifs: use generic_fillattr()

don't open-code it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoxfs: switch to proper __bitwise type for KM_... flags
Al Viro [Mon, 2 Apr 2012 10:24:04 +0000 (06:24 -0400)]
xfs: switch to proper __bitwise type for KM_... flags

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch utimes() to fget_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:47:57 +0000 (18:47 -0400)]
switch utimes() to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch statfs to fget_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:47:27 +0000 (18:47 -0400)]
switch statfs to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch flock to fget_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:46:53 +0000 (18:46 -0400)]
switch flock to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch signalfd4() to fget_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:44:12 +0000 (18:44 -0400)]
switch signalfd4() to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch fcntl to fget_raw_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:42:19 +0000 (18:42 -0400)]
switch fcntl to fget_raw_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch xattr syscalls to fget_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:41:25 +0000 (18:41 -0400)]
switch xattr syscalls to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch readdir/getdents to fget_light/fput_light
Al Viro [Sat, 21 Apr 2012 22:40:32 +0000 (18:40 -0400)]
switch readdir/getdents to fget_light/fput_light

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoswitch do_fsync() to fget_light()
Al Viro [Fri, 20 Apr 2012 03:52:50 +0000 (23:52 -0400)]
switch do_fsync() to fget_light()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Tue, 29 May 2012 19:42:10 +0000 (12:42 -0700)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS updates from Steve French.

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (29 commits)
  cifs: fix oops while traversing open file list (try #4)
  cifs: Fix comment as d_alloc_root() is replaced by d_make_root()
  CIFS: Introduce SMB2 mounts as vers=2.1
  CIFS: Introduce SMB2 Kconfig option
  CIFS: Move add/set_credits and get_credits_field to ops structure
  CIFS: Move protocol specific demultiplex thread calls to ops struct
  CIFS: Move protocol specific part from cifs_readv_receive to ops struct
  CIFS: Move header_size/max_header_size to ops structure
  CIFS: Move protocol specific part from SendReceive2 to ops struct
  cifs: Include backup intent search flags during searches {try #2)
  CIFS: Separate protocol specific part from setlk
  CIFS: Separate protocol specific part from getlk
  CIFS: Separate protocol specific lock type handling
  CIFS: Convert lock type to 32 bit variable
  CIFS: Move locks to cifsFileInfo structure
  cifs: convert send_nt_cancel into a version specific op
  cifs: add a smb_version_operations/values structures and a smb_version enum
  cifs: remove the vers= and version= synonyms for ver=
  cifs: add warning about change in default cache semantics in 3.7
  cifs: display cache= option in /proc/mounts
  ...

12 years agoMerge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Tue, 29 May 2012 18:53:11 +0000 (11:53 -0700)]
Merge tag 'mfd-3.5-1' of git://git./linux/kernel/git/sameo/mfd-2.6

Pull MFD changes from Samuel Ortiz:
 "Besides the usual cleanups, this one brings:

   * Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton,
     ST-E's STAX211, Samsung's MAX77693 and TI's LM3533.

   * Device tree support for the twl6040, tps65910, da9502 and ab8500
     drivers.

   * Fairly big tps56910, ab8500 and db8500 updates.

   * i2c support for mc13xxx.

   * Our regular update for the wm8xxx driver from Mark."

Fix up various conflicts with other trees, largely due to ab5500 removal
etc.

* tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits)
  mfd: Fix build break of max77693 by adding REGMAP_I2C option
  mfd: Fix twl6040 build failure
  mfd: Fix max77693 build failure
  mfd: ab8500-core should depend on MFD_DB8500_PRCMU
  gpio: tps65910: dt: process gpio specific device node info
  mfd: Remove the parsing of dt info for tps65910 gpio
  mfd: Save device node parsed platform data for tps65910 sub devices
  mfd: Add r_select to lm3533 platform data
  gpio: Add Intel Centerton support to gpio-sch
  mfd: Emulate active low IRQs as well as active high IRQs for wm831x
  mfd: Mark two lm3533 zone registers as volatile
  mfd: Fix return type of lm533 attribute is_visible
  mfd: Enable Device Tree support in the ab8500-pwm driver
  mfd: Enable Device Tree support in the ab8500-sysctrl driver
  mfd: Add support for Device Tree to twl6040
  mfd: Register the twl6040 child for the ASoC codec unconditionally
  mfd: Allocate twl6040 IRQ numbers dynamically
  mfd: twl6040 code cleanup in interrupt initialization part
  mfd: Enable ab8500-gpadc driver for Device Tree
  mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver
  ...

12 years agoMerge tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Tue, 29 May 2012 17:43:51 +0000 (10:43 -0700)]
Merge tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "New features include:
   - Rewrite the O_DIRECT code so that it can share the same coalescing
     and pNFS functionality as the page cache code.
   - Allow the server to provide hints as to when we should use pNFS,
     and when it is more efficient to read and write through the
     metadata server.
   - NFS cache consistency updates:
     * Use the ctime to emulate a change attribute for NFSv2/v3 so that
       all NFS versions can share the same cache management code.
     * New cache management code will only look at the change attribute
       and size attribute when deciding whether or not our cached data
       is still valid or not.
     * Don't request NFSv4 post-op attributes on writes in cases such as
       O_DIRECT, where we don't care about data cache consistency, or
       when we have a write delegation, and know that our cache is still
       consistent.
     * Don't request NFSv4 post-op attributes on operations such as
       COMMIT, where there are no expected metadata updates.
     * Don't request NFSv4 directory post-op attributes in cases where
       the operations themselves already return change attribute
       updates: i.e. operations such as OPEN, CREATE, REMOVE, LINK and
       RENAME.
   - Speed up 'ls' and friends by using READDIR rather than READDIRPLUS
     if we detect no attempts to lookup filenames.
   - Improve the code sharing between NFSv2/v3 and v4 mounts
   - NFSv4.1 state management efficiency improvements
   - More patches in preparation for NFSv4/v4.1 migration functionality."

Fix trivial conflict in fs/nfs/nfs4proc.c that was due to the dcache
qstr name initialization changes (that made the length/hash a 64-bit
union)

* tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (146 commits)
  NFSv4: Add debugging printks to state manager
  NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO
  NFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHE
  NFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_error
  NFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSION
  NFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state manager
  NFSv4.1: Handle errors in nfs4_bind_conn_to_session
  NFSv4.1: nfs4_bind_conn_to_session should drain the session
  NFSv4.1: Don't clobber the seqid if exchange_id returns a confirmed clientid
  NFSv4.1: Add DESTROY_CLIENTID
  NFSv4.1: Ensure we use the correct credentials for bind_conn_to_session
  NFSv4.1: Ensure we use the correct credentials for session create/destroy
  NFSv4.1: Move NFSPROC4_CLNT_BIND_CONN_TO_SESSION to the end of the operations
  NFSv4.1: Handle NFS4ERR_SEQ_MISORDERED when confirming the lease
  NFSv4: When purging the lease, we must clear NFS4CLNT_LEASE_CONFIRM
  NFSv4: Clean up the error handling for nfs4_reclaim_lease
  NFSv4.1: Exchange ID must use GFP_NOFS allocation mode
  nfs41: Use BIND_CONN_TO_SESSION for CB_PATH_DOWN*
  nfs4.1: add BIND_CONN_TO_SESSION operation
  NFSv4.1 test the mdsthreshold hint parameters
  ...

12 years agotty: fix ldisc lock inversion trace
Alan Cox [Tue, 29 May 2012 12:45:16 +0000 (13:45 +0100)]
tty: fix ldisc lock inversion trace

This is caused by tty_release using tty_lock_pair to lock both sides of
the pty/tty pair, and then tty_ldisc_release dropping and relocking one
side only.  We can drop both fine, so drop both to avoid any lock
ordering concerns.

Rework the release path to fix the new locking model.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agopty: Fix lock inversion
Alan Cox [Tue, 29 May 2012 12:45:01 +0000 (13:45 +0100)]
pty: Fix lock inversion

The ptmx_open path takes the tty and devpts locks in the wrong order
because tty_init_dev locks and returns a locked tty.  As far as I can
tell this is actually safe anyway because the tty being returned is new
so nobody can get a reference to lock it at this point.

However we don't even need the devpts lock at this point, it's only held
as a byproduct of the way the locks were pushe down.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoNFSv4: Add debugging printks to state manager
Trond Myklebust [Mon, 28 May 2012 19:12:27 +0000 (15:12 -0400)]
NFSv4: Add debugging printks to state manager

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoNFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO
Trond Myklebust [Mon, 28 May 2012 15:36:28 +0000 (11:36 -0400)]
NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO

If a file OPEN is denied due to a share lock, the resulting
NFS4ERR_SHARE_DENIED is currently mapped to the default EIO.
This patch adds a more appropriate mapping, and brings Linux
into line with what Solaris 10 does.

See https://bugzilla.kernel.org/show_bug.cgi?id=43286

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
12 years agoMerge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
Linus Torvalds [Mon, 28 May 2012 20:10:41 +0000 (13:10 -0700)]
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

Pull exofs updates from Boaz Harrosh:
 "Just a couple of patches.  The first is a BUG fix destined for stable
  which missed the 3.4-rc7 Kernel.  The second is just a fixture
  addition so exofs is able to be better exported as a cluster file
  system via pNFS."

* 'for-linus' of git://git.open-osd.org/linux-open-osd:
  exofs: Add SYSFS info for autologin/pNFS export
  exofs: Fix CRASH on very early IO errors.

12 years agoMerge branch 'doc' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Linus Torvalds [Mon, 28 May 2012 17:40:11 +0000 (10:40 -0700)]
Merge branch 'doc' of git://git./linux/kernel/git/jikos/trivial

Pull documentation updates from Jiri Kosina:
 "I am currently relaying documentation patches through 'doc' branch of
  trivial tree, until Rob, the new documentation maintainer, has
  established a proper tree."

* 'doc' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  doc: ext3: update documentation with barrier=1 default
  Documentation/initrd.txt: Change the location of util-linux
  Documentation/SubmittingPatches: suggested the use of scripts/get_maintainer.pl
  Documentation/kernel-parameters: remove autotest and mcatest

12 years agoMerge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Mon, 28 May 2012 17:39:07 +0000 (10:39 -0700)]
Merge branch 'misc' of git://git./linux/kernel/git/mmarek/kbuild

Pull misc kbuild changes from Michal Marek:
 "The non-critical part of kbuild for 3.5 includes

   - two new coccinelle checks
   - fix for make deb-pkg to include generated headers in arch/*/include

  I have more make-deb-pkg fixes in the backlog, but these will likely
  have to wait for 3.6."

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  builddeb: include autogenerated header files
  scripts/coccinelle: sizeof of pointer
  scripts/coccinelle: address test is always true

12 years agoMerge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Mon, 28 May 2012 17:37:56 +0000 (10:37 -0700)]
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild

Pull kconfig changes from Michal Marek:

 - Error handling for make KCONFIG_ALLCONFIG=<...> all*config plus a fix
   for a bug that was exposed by this

 - Fix for the script/config utility.

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/config: properly report and set string options
  kbuild: all{no,yes,mod,def,rand}config only read files when instructed to.
  kconfig: Add error handling to KCONFIG_ALLCONFIG

12 years agoMerge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Mon, 28 May 2012 17:32:28 +0000 (10:32 -0700)]
Merge branch 'kbuild' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild updates from Michal Marek.

Fixed up nontrivial merge conflict in Makefile as per Stephen Rothwell
and linux-next (and trivial arch/sparc/Makefile changes due to removed
sparc32 logic).

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  mips: Fix KBUILD_CPPFLAGS definition
  kbuild: fix ia64 link
  kbuild: document KBUILD_LDS, KBUILD_VMLINUX_{INIT,MAIN} and LDFLAGS_vmlinux
  kbuild: link of vmlinux moved to a script
  kbuild: refactor final link of sparc32
  kbuild: drop unused KBUILD_VMLINUX_OBJS from top-level Makefile
  kbuild: Makefile: remove unnecessary check for m68knommu ARCH

12 years agoMerge tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
Linus Torvalds [Mon, 28 May 2012 16:54:45 +0000 (09:54 -0700)]
Merge tag 'writeback' of git://git./linux/kernel/git/wfg/linux

Pull writeback tree from Wu Fengguang:
 "Mainly from Jan Kara to avoid iput() in the flusher threads."

* tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
  writeback: Avoid iput() from flusher thread
  vfs: Rename end_writeback() to clear_inode()
  vfs: Move waiting for inode writeback from end_writeback() to evict_inode()
  writeback: Refactor writeback_single_inode()
  writeback: Remove wb->list_lock from writeback_single_inode()
  writeback: Separate inode requeueing after writeback
  writeback: Move I_DIRTY_PAGES handling
  writeback: Move requeueing when I_SYNC set to writeback_sb_inodes()
  writeback: Move clearing of I_SYNC into inode_sync_complete()
  writeback: initialize global_dirty_limit
  fs: remove 8 bytes of padding from struct writeback_control on 64 bit builds
  mm: page-writeback.c: local functions should not be exposed globally

12 years agoMerge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
Linus Torvalds [Mon, 28 May 2012 16:49:56 +0000 (09:49 -0700)]
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze changes from Michal Simek.

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Setup correct pointer to TLS area
  microblaze: Add TLS support to sys_clone
  microblaze: ftrace: Pass the first calling instruction for dynamic ftrace
  microblaze: Port OOM changes to do_page_fault
  microblaze: Do not select GENERIC_GPIO by default

12 years agoNFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHE
Trond Myklebust [Mon, 28 May 2012 14:01:34 +0000 (10:01 -0400)]
NFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHE

We're already invalidating the data cache, and setting the new change
attribute. Since directories don't care about the i_size field, there
is no need to be forcing any extra revalidation of the page cache.

We do keep the NFS_INO_INVALID_ATTR flag, in order to force an
attribute cache revalidation on stat() calls since we do not
update the mtime and ctime fields.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoopenrisc: use generic strnlen_user() function
Jonas Bonn [Sun, 27 May 2012 08:25:47 +0000 (10:25 +0200)]
openrisc: use generic strnlen_user() function

The generic version is both easier to support and more correct.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agopowerpc: Use the new generic strncpy_from_user() and strnlen_user()
Paul Mackerras [Mon, 28 May 2012 03:03:47 +0000 (13:03 +1000)]
powerpc: Use the new generic strncpy_from_user() and strnlen_user()

This is much the same as for SPARC except that we can do the find_zero()
function more efficiently using the count-leading-zeroes instructions.
Tested on 32-bit and 64-bit PowerPC.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agolib: Fix generic strnlen_user for 32-bit big-endian machines
Paul Mackerras [Mon, 28 May 2012 02:59:56 +0000 (12:59 +1000)]
lib: Fix generic strnlen_user for 32-bit big-endian machines

The aligned_byte_mask() definition is wrong for 32-bit big-endian
machines: the "7-(n)" part of the definition assumes a long is 8
bytes.  This fixes it by using BITS_PER_LONG - 8 instead of 8*7.
Tested on 32-bit and 64-bit PowerPC.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoNFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_error
Trond Myklebust [Sun, 27 May 2012 18:46:46 +0000 (14:46 -0400)]
NFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_error

The results from a call to nfs4_proc_create_session() should always
be fed into nfs4_handle_reclaim_lease_error, so that we can
handle errors such as NFS4ERR_SEQ_MISORDERED correctly.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoNFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSION
Trond Myklebust [Sun, 27 May 2012 17:02:53 +0000 (13:02 -0400)]
NFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSION

Let nfs4_schedule_session_recovery() handle the details of choosing
between resetting the session, and other session related recovery.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoNFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state manager
Trond Myklebust [Sun, 27 May 2012 16:58:48 +0000 (12:58 -0400)]
NFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state manager

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoNFSv4.1: Handle errors in nfs4_bind_conn_to_session
Trond Myklebust [Sun, 27 May 2012 16:53:10 +0000 (12:53 -0400)]
NFSv4.1: Handle errors in nfs4_bind_conn_to_session

Ensure that we handle NFS4ERR_DELAY errors separately, and then
let nfs4_recovery_handle_error() handle all other cases.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoNFSv4.1: nfs4_bind_conn_to_session should drain the session
Trond Myklebust [Sun, 27 May 2012 17:47:21 +0000 (13:47 -0400)]
NFSv4.1: nfs4_bind_conn_to_session should drain the session

In order to avoid races with other RPC calls that end up setting the
NFS4CLNT_BIND_CONN_TO_SESSION flag.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
12 years agoMerge branch 'generic-string-functions'
Linus Torvalds [Sat, 26 May 2012 23:57:16 +0000 (16:57 -0700)]
Merge branch 'generic-string-functions'

This makes <asm/word-at-a-time.h> actually live up to its promise of
allowing architectures to help tune the string functions that do their
work a word at a time.

David had already taken the x86 strncpy_from_user() function, modified
it to work on sparc, and then done the extra work to make it generically
useful.  This then expands on that work by making x86 use that generic
version, completing the circle.

But more importantly, it fixes up the word-at-a-time interfaces so that
it's now easy to also support things like strnlen_user(), and pretty
much most random string functions.

David reports that it all works fine on sparc, and Jonas Bonn reported
that an earlier version of this worked on OpenRISC too.  It's pretty
easy for architectures to add support for this and just replace their
private versions with the generic code.

* generic-string-functions:
  sparc: use the new generic strnlen_user() function
  x86: use the new generic strnlen_user() function
  lib: add generic strnlen_user() function
  word-at-a-time: make the interfaces truly generic
  x86: use generic strncpy_from_user routine

12 years agobuilddeb: include autogenerated header files
Lekensteyn [Fri, 18 May 2012 08:22:43 +0000 (10:22 +0200)]
builddeb: include autogenerated header files

After 303395ac3bf3e2cb488435537d416bc840438fcb, some headers are
autogenerated. Include these autogenerated headers (mainly
unistd_32_ia32.h) in out-of-tree builds to allow DKMS modules to be
built succesfully.

Signed-off-by: Peter Lekensteyn <lekensteyn@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
12 years agoMerge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux
Linus Torvalds [Sat, 26 May 2012 20:35:03 +0000 (13:35 -0700)]
Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux

Pull i2c-embedded changes from Wolfram Sang:
 "Major changes:

   - lots of devicetree additions for existing drivers.  I tried hard to
     make sure the bindings are proper.  In more complicated cases, I
     requested acks from people having more experience with them than
     me.  That took a bit of extra time and also some time went into
     discussions with developers about what bindings are and what not.
     I have the feeling that the workflow with bindings should be
     improved to scale better.  I will spend some more thought on
     this...

   - i2c-muxes are succesfully used meanwhile, so we dropped
     EXPERIMENTAL for them and renamed the drivers to a standard pattern
     to match the rest of the subsystem.  They can also be used with
     devicetree now.

   - ixp2000 was removed since the whole platform goes away.

   - cleanups (strlcpy instead of strcpy, NULL instead of 0)

   - The rest is typical driver fixes I assume.

  All patches have been in linux-next at least since v3.4-rc6."

Fixed up trivial conflict in arch/arm/mach-lpc32xx/common.c due to the
same patch already having come in through the arm/soc trees, with
additional patches on top of it.

* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (35 commits)
  i2c: davinci: Free requested IRQ in remove
  i2c: ocores: register OF i2c devices
  i2c: tegra: notify transfer-complete after clearing status.
  I2C: xiic: Add OF binding support
  i2c: Rename last mux driver to standard pattern
  i2c: tegra: fix 10bit address configuration
  i2c: muxes: rename first set of drivers to a standard pattern
  of/i2c: implement of_find_i2c_adapter_by_node
  i2c: implement i2c_verify_adapter
  i2c-s3c2410: Add HDMIPHY quirk for S3C2440
  i2c-s3c2410: Rework device type handling
  i2c: muxes are not EXPERIMENTAL anymore
  i2c/of: Automatically populate i2c mux busses from device tree data.
  i2c: Add a struct device * parameter to i2c_add_mux_adapter()
  of/i2c: call i2c_verify_client from of_find_i2c_device_by_node
  i2c: designware: Add clk_{un}prepare() support
  i2c: designware: add PM support
  i2c: ixp2000: remove driver
  i2c: pnx: add device tree support
  i2c: imx: don't use strcpy but strlcpy
  ...

12 years agoMerge tag 'cleanup-initcall' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sat, 26 May 2012 20:14:01 +0000 (13:14 -0700)]
Merge tag 'cleanup-initcall' of git://git./linux/kernel/git/arm/arm-soc

Pull sweeping late_initcall cleanup for arm-soc from Olof Johansson:
 "This is a patch series from Shawn Guo that moves from individual
  late_initcalls() to using a member in the machine structure to invoke
  a platform's late initcalls.

  This cleanup is a step in the move towards multiplatform kernels since
  it would reduce the need to check for compatible platforms in each and
  every initcall."

Fix up trivial conflicts in arch/arm/mach-{exynos/mach-universal_c210.c,
imx/mach-cpuimx51.c, omap2/board-generic.c} due to changes nearby (and,
in the case of cpuimx51.c the board support being deleted)

* tag 'cleanup-initcall' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: ux500: use machine specific hook for late init
  ARM: tegra: use machine specific hook for late init
  ARM: shmobile: use machine specific hook for late init
  ARM: sa1100: use machine specific hook for late init
  ARM: s3c64xx: use machine specific hook for late init
  ARM: prima2: use machine specific hook for late init
  ARM: pnx4008: use machine specific hook for late init
  ARM: omap2: use machine specific hook for late init
  ARM: omap1: use machine specific hook for late init
  ARM: msm: use machine specific hook for late init
  ARM: imx: use machine specific hook for late init
  ARM: exynos: use machine specific hook for late init
  ARM: ep93xx: use machine specific hook for late init
  ARM: davinci: use machine specific hook for late init
  ARM: provide a late_initcall hook for platform initialization