litmus-rt.git/Documentation/filesystems, branch linux-tip

Documentation/filesystems/vfs.txt: fix ->repeasepage() description

2010-12-02T22:51:15+00:00

->releasepage() does not remove the page from the mapping.

Acked-by: Neil Brown 
Cc: Trond Myklebust 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Documentation: make configfs example code simpler, clearer

2010-11-18T23:00:46+00:00

If "p" is NULL then it will cause an oops when we pass it to
simple_strtoul().  In this case "p" can not be NULL so I removed the
check.  I also changed the check a little to make it more explicit that
we are testing whether p points to the NUL char.

Signed-off-by: Dan Carpenter 
Acked-by: Joel Becker 
Signed-off-by: Randy Dunlap 
Signed-off-by: Linus Torvalds

xfs: remove experimental tag from the delaylog option

2010-11-10T18:00:47+00:00

We promised to do this for 2.6.37, and the code looks stable enough to
keep that promise.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Dave Chinner 
Signed-off-by: Alex Elder

locks: remove fl_copy_lock lock_manager operation

2010-10-31T13:35:15+00:00

This one was only used for a nasty hack in nfsd, which has recently
been removed.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

2010-10-28T19:13:00+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (841 commits)
  Staging: brcm80211: fix usage of roundup in structures
  Staging: bcm: fix up network device reference counting
  Staging: keucr: fix up US_ macro change
  staging: brcm80211: brcmfmac: Removed codeversion from firmware filenames.
  staging: brcm80211: Remove unnecessary header files.
  staging: brcm80211: Remove unnecessary includes from bcmutils.c
  staging: brcm80211: Removed unnecessary pktsetprio() function.
  Staging: brcm80211: remove typedefs.h
  Staging: brcm80211: remove uintptr typedef usage
  Staging: hv: remove struct vmbus_channel_interface
  Staging: hv: remove Open from struct vmbus_channel_interface
  Staging: hv: storvsc: call vmbus_open directly
  Staging: hv: netvsc: call vmbus_open directly
  Staging: hv: channel: export vmbus_open to modules
  Staging: hv: remove Close from struct vmbus_channel_interface
  Staging: hv: netvsc: call vmbus_close directly
  Staging: hv: storvsc: call vmbus_close directly
  Staging: hv: channel: export vmbus_close to modules
  Staging: hv: remove SendPacket from struct vmbus_channel_interface
  Staging: hv: storvsc: call vmbus_sendpacket directly
  ...

Fix up conflicts in
	drivers/staging/cx25821/cx25821-audio-upstream.c
	drivers/staging/cx25821/cx25821-audio.h
due to warring whitespace cleanups (neither of which were all that great)

Merge 'staging-next' to Linus's tree

2010-10-28T16:44:56+00:00

This merges the staging-next tree to Linus's tree and resolves
some conflicts that were present due to changes in other trees that were
affected by files here.

Signed-off-by: Greg Kroah-Hartman

fs/9p: Add access = client option to opt in acl evaluation.

2010-10-28T14:08:46+00:00

Signed-off-by: Aneesh Kumar K.V 
Signed-off-by: Venkateswararao Jujjuri 
Signed-off-by: Eric Van Hensbergen

Merge branch 'next' into upstream-merge

2010-10-28T03:44:47+00:00

Conflicts:
	fs/ext4/inode.c
	fs/ext4/mballoc.c
	include/trace/events/ext4.h

ext4: add support for lazy inode table initialization

2010-10-28T01:30:05+00:00

When the lazy_itable_init extended option is passed to mke2fs, it
considerably speeds up filesystem creation because inode tables are
not zeroed out.  The fact that parts of the inode table are
uninitialized is not a problem so long as the block group descriptors,
which contain information regarding how much of the inode table has
been initialized, has not been corrupted However, if the block group
checksums are not valid, e2fsck must scan the entire inode table, and
the the old, uninitialized data could potentially cause e2fsck to
report false problems.

Hence, it is important for the inode tables to be initialized as soon
as possble.  This commit adds this feature so that mke2fs can safely
use the lazy inode table initialization feature to speed up formatting
file systems.

This is done via a new new kernel thread called ext4lazyinit, which is
created on demand and destroyed, when it is no longer needed.  There
is only one thread for all ext4 filesystems in the system. When the
first filesystem with inititable mount option is mounted, ext4lazyinit
thread is created, then the filesystem can register its request in the
request list.

This thread then walks through the list of requests picking up
scheduled requests and invoking ext4_init_inode_table(). Next schedule
time for the request is computed by multiplying the time it took to
zero out last inode table with wait multiplier, which can be set with
the (init_itable=n) mount option (default is 10).  We are doing
this so we do not take the whole I/O bandwidth. When the thread is no
longer necessary (request list is empty) it frees the appropriate
structures and exits (and can be created later later by another
filesystem).

We do not disturb regular inode allocations in any way, it just do not
care whether the inode table is, or is not zeroed. But when zeroing, we
have to skip used inodes, obviously. Also we should prevent new inode
allocations from the group, while zeroing is on the way. For that we
take write alloc_sem lock in ext4_init_inode_table() and read alloc_sem
in the ext4_claim_inode, so when we are unlucky and allocator hits the
group which is currently being zeroed, it just has to wait.

This can be suppresed using the mount option no_init_itable.

Signed-off-by: Lukas Czerner 
Signed-off-by: "Theodore Ts'o"

/proc/pid/pagemap: document in Documentation/filesystems/proc.txt

2010-10-28T01:03:13+00:00

Document /proc/pid/pagemap in Documentation/filesystems/proc.txt

Signed-off-by: Nikanth Karthikesan 
Cc: Richard Guenther 
Cc: Balbir Singh 
Cc: KOSAKI Motohiro 
Acked-by: Matt Mackall 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds