09 Jan, 2012
1 commit
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* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
PM / Hibernate: Implement compat_ioctl for /dev/snapshot
PM / Freezer: fix return value of freezable_schedule_timeout_killable()
PM / shmobile: Allow the A4R domain to be turned off at run time
PM / input / touchscreen: Make st1232 use device PM QoS constraints
PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
PM / shmobile: Remove the stay_on flag from SH7372's PM domains
PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
PM: Drop generic_subsys_pm_ops
PM / Sleep: Remove forward-only callbacks from AMBA bus type
PM / Sleep: Remove forward-only callbacks from platform bus type
PM: Run the driver callback directly if the subsystem one is not there
PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
PM / Sleep: Merge internal functions in generic_ops.c
PM / Sleep: Simplify generic system suspend callbacks
PM / Hibernate: Remove deprecated hibernation snapshot ioctls
PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
ARM: S3C64XX: Implement basic power domain support
PM / shmobile: Use common always on power domain governor
...Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused
XBT_FORCE_SLEEP bit
22 Nov, 2011
2 commits
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This patch separates the code pertaining to allocations into two
parts: quota-related information and block reservations.
This patch also moves all the block reservation structure allocations to
function gfs2_inplace_reserve to simplify the code, and moves
the frees to function gfs2_inplace_release.Signed-off-by: Bob Peterson
Signed-off-by: Steven Whitehouse -
There is no reason to export two functions for entering the
refrigerator. Calling refrigerator() instead of try_to_freeze()
doesn't save anything noticeable or removes any race condition.* Rename refrigerator() to __refrigerator() and make it return bool
indicating whether it scheduled out for freezing.* Update try_to_freeze() to return bool and relay the return value of
__refrigerator() if freezing().* Convert all refrigerator() users to try_to_freeze().
* Update documentation accordingly.
* While at it, add might_sleep() to try_to_freeze().
Signed-off-by: Tejun Heo
Cc: Samuel Ortiz
Cc: Chris Mason
Cc: "Theodore Ts'o"
Cc: Steven Whitehouse
Cc: Andrew Morton
Cc: Jan Kara
Cc: KONISHI Ryusuke
Cc: Christoph Hellwig
08 Nov, 2011
1 commit
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Christoph has split up REQ_PRIO from REQ_META. That means that
we can drop REQ_PRIO from places where is it not needed. I'm
not at all sure that the combination WRITE_FLUSH_FUA | REQ_PRIO
makes any kind of sense, anyway.In addition, I've added REQ_META to one place in the code where
it was missing. REQ_PRIO has been left for read/writes triggered
by glock acquisition and writeback only. We can adjust it again
if required, but these are the most important points from a
performance perspective.Signed-off-by: Steven Whitehouse
Cc: Christoph Hellwig
21 Oct, 2011
3 commits
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Some items picked up through automated code analysis. A few bits
of unreachable code and two unchecked return values.Signed-off-by: Steven Whitehouse
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This means that after the initial allocation for any inode, the
last used resource group is cached in the inode for future use.
This drastically reduces the number of lookups of resource
groups in the common case, and this the contention on that
data structure.The allocation algorithm is the same as previously, except that we
always check to see if the goal block is within the cached rgrp
first before going to the rbtree to look one up.Signed-off-by: Steven Whitehouse
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The aim of this patch is to use the newly enhanced ->dirty_inode()
super block operation to deal with atime updates, rather than
piggy backing that code into ->write_inode() as is currently
done.The net result is a simplification of the code in various places
and a reduction of the number of gfs2_dinode_out() calls since
this is now implied by ->dirty_inode().Some of the mark_inode_dirty() calls have been moved under glocks
in order to take advantage of then being able to avoid locking in
->dirty_inode() when we already have suitable locks.One consequence is that generic_write_end() now correctly deals
with file size updates, so that we do not need a separate check
for that afterwards. This also, indirectly, means that fdatasync
should work correctly on GFS2 - the current code always syncs the
metadata whether it needs to or not.Has survived testing with postmark (with and without atime) and
also fsx.Signed-off-by: Steven Whitehouse
23 Aug, 2011
2 commits
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Add a new REQ_PRIO to let requests preempt others in the cfq I/O schedule,
and lave REQ_META purely for marking requests as metadata in blktrace.All existing callers of REQ_META except for XFS are updated to also
set REQ_PRIO for now.Signed-off-by: Christoph Hellwig
Reviewed-by: Namhyung Kim
Signed-off-by: Jens Axboe -
Replace all occurnanced of the undocumented READ_META with READ | REQ_META
and remove the unused WRITE_META define.Signed-off-by: Christoph Hellwig
Signed-off-by: Jens Axboe
25 May, 2011
1 commit
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Change each shrinker's API by consolidating the existing parameters into
shrink_control struct. This will simplify any further features added w/o
touching each file of shrinker.[akpm@linux-foundation.org: fix build]
[akpm@linux-foundation.org: fix warning]
[kosaki.motohiro@jp.fujitsu.com: fix up new shrinker API]
[akpm@linux-foundation.org: fix xfs warning]
[akpm@linux-foundation.org: update gfs2]
Signed-off-by: Ying Han
Cc: KOSAKI Motohiro
Cc: Minchan Kim
Acked-by: Pavel Emelyanov
Cc: KAMEZAWA Hiroyuki
Cc: Mel Gorman
Acked-by: Rik van Riel
Cc: Johannes Weiner
Cc: Hugh Dickins
Cc: Dave Hansen
Cc: Steven Whitehouse
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Mar, 2011
1 commit
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Immediately after being synced to disk, cached quotas are zeroed out and a
subsequent access of the cached quotas results in incorrect zero values. This
meant that gfs2 assumed the actual usage to be the zero (or near-zero) usage
values it found in the cached quotas and comparison against warn/limits never
triggered a quota violation.This patch adds a new flag QDF_REFRESH that is set after a sync so that the
cached quotas are forcefully refreshed from disk on a subsequent access on
seeing this flag set.Resolves: rhbz#675944
Signed-off-by: Abhi Das
Signed-off-by: Steven Whitehouse
08 Feb, 2011
1 commit
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Handle block allocation for forceful unstuffing of quota dinode during quota
update using quotactl(). Also fix block reservation for special cases when
quotas cross over block boundaries and update 2 blocks instead of 1.Signed-off-by: Abhi Das
Signed-off-by: Steven Whitehouse
30 Nov, 2010
1 commit
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With this patch the gfs2_set_dqblk() function will be able to update the
quota usage block count (FS_DQ_BCOUNT) in addition to the already supported
FS_DQ_BHARD (limit) and FS_DQ_BSOFT (warn) fields of the dquot structure.Signed-off-by: Abhi Das
Signed-off-by: Steven Whitehouse
19 Nov, 2010
1 commit
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Userland programs using the quotactl() syscall assume limit/warn/usage
block counts in 512b basic blocks which were instead being read/written
in fs blocksize in gfs2. With this patch, gfs2 correctly interacts with
the syscall using 512b blocks.Signed-off-by: Abhi Das
Reviewed-by: Christoph Hellwig
Signed-off-by: Steven Whitehouse
28 Sep, 2010
1 commit
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Some of the functions in GFS2 were not reserving space in the transaction for
the resource group header and the resource groups bitblocks that get added
when you do allocation. GFS2 now makes sure to reserve space for the
resource group header and either all the bitblocks in the resource group, or
one for each block that it may allocate, whichever is smaller using the new
gfs2_rg_blocks() inline function.Signed-off-by: Benjamin Marzinski
Signed-off-by: Steven Whitehouse
20 Sep, 2010
1 commit
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With the update of the truncate code, ip->i_disksize and
inode->i_size are merely copies of each other. This means
we can remove ip->i_disksize and use inode->i_size exclusively
reducing the size of a GFS2 inode by 8 bytes.Signed-off-by: Steven Whitehouse
08 Aug, 2010
1 commit
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* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
ext3: Fix dirtying of journalled buffers in data=journal mode
ext3: default to ordered mode
quota: Use mark_inode_dirty_sync instead of mark_inode_dirty
quota: Change quota error message to print out disk and function name
MAINTAINERS: Update entries of ext2 and ext3
MAINTAINERS: Update address of Andreas Dilger
ext3: Avoid filesystem corruption after a crash under heavy delete load
ext3: remove vestiges of nobh support
ext3: Fix set but unused variables
quota: clean up quota active checks
quota: Clean up the namespace in dqblk_xfs.h
quota: check quota reservation on remove_dquot_ref
29 Jul, 2010
1 commit
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Function gfs2_write_alloc_required always returned zero as its
return code. Therefore, it doesn't need to return a return code
at all. Given that, we can use the return value to return whether
or not the dinode needs block allocations rather than passing
that value in, which in turn simplifies a bunch of error checking.Signed-off-by: Bob Peterson
Signed-off-by: Steven Whitehouse
21 Jul, 2010
1 commit
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Almost all identifiers use the FS_* namespace, so rename the missing few
XFS_* ones to FS_* as well. Without this some people might get upset
about having too many XFS names in generic code.Acked-by: Steven Whitehouse
Signed-off-by: Christoph Hellwig
Signed-off-by: Jan Kara
19 Jul, 2010
1 commit
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The current shrinker implementation requires the registered callback
to have global state to work from. This makes it difficult to shrink
caches that are not global (e.g. per-filesystem caches). Pass the shrinker
structure to the callback so that users can embed the shrinker structure
in the context the shrinker needs to operate on and get back to it in the
callback via container_of().Signed-off-by: Dave Chinner
Reviewed-by: Christoph Hellwig
15 Jul, 2010
1 commit
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HighMem pages on i686 do not get mapped to the buffer_heads and this was
causing a NULL pointer dereference when we were trying to memset page buffers
to zero.
We now use zero_user() that kmaps the page and directly manipulates page data.
This patch also fixes a boundary condition that was incorrect.Signed-off-by: Abhi Das
Signed-off-by: Steven Whitehouse
22 May, 2010
2 commits
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Pass the larger struct fs_disk_quota to the ->set_dqblk operation so
that the Q_SETQUOTA and Q_XSETQUOTA operations can be implemented
with a single filesystem operation and we can retire the ->set_xquota
operation. The additional information (RT-subvolume accounting and
warn counts) are left zero for the VFS quota implementation.Add new fieldmask values for setting the numer of blocks and inodes
values which is required for the VFS quota, but wasn't for XFS.Signed-off-by: Christoph Hellwig
Signed-off-by: Jan Kara -
Pass the larger struct fs_disk_quota to the ->get_dqblk operation so
that the Q_GETQUOTA and Q_XGETQUOTA operations can be implemented
with a single filesystem operation and we can retire the ->get_xquota
operation. The additional information (RT-subvolume accounting and
warn counts) are left zero for the VFS quota implementation.Signed-off-by: Christoph Hellwig
Signed-off-by: Jan Kara
10 May, 2010
1 commit
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This is the upstream fix for this bug. This patch differs
from the RHEL5 fix (Red Hat bz #555754) which simply writes to the 8-byte
value field of the quota. In upstream quota code, we're
required to write the entire quota (88 bytes) which can be split
across a page boundary. We check for such quotas, and read/write
the two parts from/to the corresponding pages holding these parts.With this patch, I don't see the bug anymore using the reproducer
in Red Hat bz 555754. I successfully ran a couple of simple tests/mounts/
umounts and it doesn't seem like this patch breaks anything else.Signed-off-by: Abhi Das
Signed-off-by: Steven Whitehouse
05 May, 2010
1 commit
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We need to report both the accounting and enforcing flags if we are
in enforcing mode.Signed-off-by: Christoph Hellwig
Signed-off-by: Steven Whitehouse
05 Mar, 2010
1 commit
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Currenly sync_quota_sb does a lot of sync and truncate action that only
applies to "VFS" style quotas and is actively harmful for the sync
performance in XFS. Move it into vfs_quota_sync and add a wait parameter
to ->quota_sync to tell if we need it or not.My audit of the GFS2 code says it's also not needed given the way GFS2
implements quotas, but I'd be happy if this can get a detailed review.Signed-off-by: Christoph Hellwig
Signed-off-by: Jan Kara
03 Dec, 2009
11 commits
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GFS2 now has three new mount options, statfs_quantum, quota_quantum and
statfs_percent. statfs_quantum and quota_quantum simply allow you to
set the tunables of the same name. Setting setting statfs_quantum to 0
will also turn on the statfs_slow tunable. statfs_percent accepts an
integer between 0 and 100. Numbers between 1 and 100 will cause GFS2 to
do any early sync when the local number of blocks free changes by at
least statfs_percent from the totoal number of blocks free. Setting
statfs_percent to 0 disables this.Signed-off-by: Benjamin Marzinski
Signed-off-by: Steven Whitehouse -
This adds support to GFS2 to send quota warnings via netlink.
Also it removes a stray \r which was left over from when the
code used to print warnings on the console.Signed-off-by: Steven Whitehouse
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This patch adds the ability to set GFS2 quota limit and
warning levels via the XFS quota API.Signed-off-by: Steven Whitehouse
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This adds support for viewing the current GFS2 quota settings
via the XFS quota API. The setting of quotas will be addressed
in a later patch. Fields which are not supported here are left
set to zero.Signed-off-by: Steven Whitehouse
Reviewed-by: Bob Peterson -
Both of these functions contained confusing and in one case
duplicate code. This patch adds a new check in do_glock()
so that we report -ENOENT if we are asked to sync a quota
entry which doesn't exist. Due to the previous patch this is
now reported correctly to userspace.Also there are a few new comments, and I hope that the code
is easier to understand now.Signed-off-by: Steven Whitehouse
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This function was only ever called with the "create"
argument set to true, so we can remove it.Signed-off-by: Steven Whitehouse
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The "create" argument to qdsb_get() was only ever set to true,
so this patch removes that argument.Signed-off-by: Steven Whitehouse
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This allows querying of the quota state via the XFS quota
API.Signed-off-by: Steven Whitehouse
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There is no point in testing for GLF_DEMOTE here, we might as
well always release the glock at that point.Signed-off-by: Steven Whitehouse
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The plan is to add further operations to the gfs2_quotactl_ops
in future patches. The sync operation is easy, so we start with
that one.We plan to use the XFS quota control functions because they more
closely match the GFS2 ones.Signed-off-by: Steven Whitehouse
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These two functions are altered so that gfs2_quota_sync may
in future be called directly from the VFS. The GFS2 superblock
changes to a VFS super block and there is an addition of an int
argument which is currently ignored.Signed-off-by: Steven Whitehouse
22 May, 2009
1 commit
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This patch renames the ops_*.c files which have no counterpart
without the ops_ prefix in order to shorten the name and make
it more readable. In addition, ops_address.h (which was very
small) is moved into inode.h and inode.h is cleaned up by
adding extern where required.Signed-off-by: Steven Whitehouse
15 Apr, 2009
2 commits
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SPIN_LOCK_UNLOCKED is deprecated, use DEFINE_SPINLOCK instead.
(as suggested in Documentation/spinlocks.txt)Signed-off-by: Xu Gang
Signed-off-by: Steven Whitehouse -
So we don't count its D state in the loadavg.
Reported-by: Nathan Straz
Signed-off-by: Steven Whitehouse
