Merge branch 'sh/dmaengine' into sh-latest

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
"The usual collection of bug fixes and optimizations. Perhaps of
greatest

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
"The usual collection of bug fixes and optimizations. Perhaps of
greatest note is a speed up for parallel, non-allocating DIO writes,
since we no longer take the i_mutex lock in that case.

For bug fixes, we fix an incorrect overhead calculation which caused
slightly incorrect results for df(1) and statfs(2). We also fixed
bugs in the metadata checksum feature."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (23 commits)
ext4: undo ext4_calc_metadata_amount if we fail to claim space
ext4: don't let i_reserved_meta_blocks go negative
ext4: fix hole punch failure when depth is greater than 0
ext4: remove unnecessary argument from __ext4_handle_dirty_metadata()
ext4: weed out ext4_write_super
ext4: remove unnecessary superblock dirtying
ext4: convert last user of ext4_mark_super_dirty() to ext4_handle_dirty_super()
ext4: remove useless marking of superblock dirty
ext4: fix ext4 mismerge back in January
ext4: remove dynamic array size in ext4_chksum()
ext4: remove unused variable in ext4_update_super()
ext4: make quota as first class supported feature
ext4: don't take the i_mutex lock when doing DIO overwrites
ext4: add a new nolock flag in ext4_map_blocks
ext4: split ext4_file_write into buffered IO and direct IO
ext4: remove an unused statement in ext4_mb_get_buddy_page_lock()
ext4: fix out-of-date comments in extents.c
ext4: use s_csum_seed instead of i_csum_seed for xattr block
ext4: use proper csum calculation in ext4_rename
ext4: fix overhead calculation used by ext4_statfs()
...

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Merge branch 'drm-next' of ../main_line/linux-drm into dave-drm-next

Merge branch 'next' into for-linus

ext4: remove useless marking of superblock dirty

Commit a0375156 properly notes that superblock doesn't need to be marked
as dirty when only number of free inodes / blocks / number of directories
ch

ext4: remove useless marking of superblock dirty

Commit a0375156 properly notes that superblock doesn't need to be marked
as dirty when only number of free inodes / blocks / number of directories
changes since that is recomputed on each mount anyway. However that comment
leaves some unnecessary markings as dirty in place. Remove these.

Artem: tested using xfstests for both journalled and non-journalled ext4.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

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Merge branch 'pl022' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into spi-next

ext4: remove an unused statement in ext4_mb_get_buddy_page_lock()

In this patch, the statement "poff = block % blocks_per_page"
in ext4_mb_get_buddy_page_lock has no effect.

It will be optimized ou

ext4: remove an unused statement in ext4_mb_get_buddy_page_lock()

In this patch, the statement "poff = block % blocks_per_page"
in ext4_mb_get_buddy_page_lock has no effect.

It will be optimized out by the compiler, but it's better to remove it.

Signed-off-by: Haibo Liu <HaiboLiu6@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Merge commit 'v3.5-rc5' into next

ext4: avoid uneeded calls to ext4_mb_load_buddy() while reading mb_groups

Currently ext4_mb_load_buddy is called for every group, irrespective
of whether the group info is already in memory, while r

ext4: avoid uneeded calls to ext4_mb_load_buddy() while reading mb_groups

Currently ext4_mb_load_buddy is called for every group, irrespective
of whether the group info is already in memory, while reading
/proc/fs/ext4/<partition>/mb_groups proc file. For the purpose of
mb_groups proc file, it is unnecessary to load the file group info
from disk if it was loaded in past. These calls to ext4_mb_load_buddy
make reading the mb_groups proc file expensive.

Also, the locks around ext4_get_group_info are not required.

This patch modifies the code to call ext4_mb_load_buddy only if the
group info had never been loaded into memory in past. It also removes
the mb group locking around ext4_get_group_info call.

Signed-off-by: Aditya Kali <adityakali@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Merge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', 'video-bugzilla-43168', 'bugzilla-40002' and 'bugfix-misc' into release

bug fixes

Merge tag 'v3.5-rc4' into drm-intel-next-queued

I want to merge the "no more fake agp on gen6+" patches into
drm-intel-next (well, the last pieces). But a patch in 3.5-rc4 also
adds a new use of dev

Merge tag 'v3.5-rc4' into drm-intel-next-queued

I want to merge the "no more fake agp on gen6+" patches into
drm-intel-next (well, the last pieces). But a patch in 3.5-rc4 also
adds a new use of dev->agp. Hence the backmarge to sort this out, for
otherwise drm-intel-next merged into Linus' tree would conflict in the
relevant code, things would compile but nicely OOPS at driver load :(

Conflicts in this merge are just simple cases of "both branches
changed/added lines at the same place". The only tricky part is to
keep the order correct wrt the unwind code in case of errors in
intel_ringbuffer.c (and the MI_DISPLAY_FLIP #defines in i915_reg.h
together, obviously).

Conflicts:
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_ringbuffer.c

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Merge tag 'v3.5-rc1'

Linux 3.5-rc1

Conflicts:
net/ceph/messenger.c

Merge remote branch 'wireless-next/master' into ath6kl-next

Conflicts:
drivers/net/wireless/ath/ath6kl/cfg80211.c

Merge tag 'v3.5-rc2'

Merge v3.5-rc2 to get latest device tree and dynamic debug changes.

Merge branches 'sh/urgent', 'sh/core', 'sh/clockevents', 'sh/asm-generic' and 'sh/trivial' into sh-fixes-for-linus

Merge commit 'v3.5-rc2' into next

Merge branches 'bugfix-battery', 'bugfix-misc', 'bugfix-rafael', 'bugfix-turbostat', 'bugfix-video' and 'workaround-pss' into release

bug fixes

Signed-off-by: Len Brown <len.brown@intel.com>

Merge branch 'upstream' into bugfix-video

Update bugfix-video branch to 2.5-rc1
so I don't have to again resolve the
conflict in these patches vs. upstream.

Conflicts:
drivers/gpu/drm/gma500/psb_d

Merge branch 'upstream' into bugfix-video

Update bugfix-video branch to 2.5-rc1
so I don't have to again resolve the
conflict in these patches vs. upstream.

Conflicts:
drivers/gpu/drm/gma500/psb_drv.c

text conflict: add comment vs delete neighboring line

keep just this:
/* igd_opregion_init(&dev_priv->opregion_dev); */
/* acpi_video_register(); */

Signed-off-by: Len Brown <len.brown@intel.com>

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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull Ext4 updates from Theodore Ts'o:
"The major new feature added in this update is Darrick J Wong's
metada

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull Ext4 updates from Theodore Ts'o:
"The major new feature added in this update is Darrick J Wong's
metadata checksum feature, which adds crc32 checksums to ext4's
metadata fields.

There is also the usual set of cleanups and bug fixes."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (44 commits)
ext4: hole-punch use truncate_pagecache_range
jbd2: use kmem_cache_zalloc wrapper instead of flag
ext4: remove mb_groups before tearing down the buddy_cache
ext4: add ext4_mb_unload_buddy in the error path
ext4: don't trash state flags in EXT4_IOC_SETFLAGS
ext4: let getattr report the right blocks in delalloc+bigalloc
ext4: add missing save_error_info() to ext4_error()
ext4: add debugging trigger for ext4_error()
ext4: protect group inode free counting with group lock
ext4: use consistent ssize_t type in ext4_file_write()
ext4: fix format flag in ext4_ext_binsearch_idx()
ext4: cleanup in ext4_discard_allocated_blocks()
ext4: return ENOMEM when mounts fail due to lack of memory
ext4: remove redundundant "(char *) bh->b_data" casts
ext4: disallow hard-linked directory in ext4_lookup
ext4: fix potential integer overflow in alloc_flex_gd()
ext4: remove needs_recovery in ext4_mb_init()
ext4: force ro mount if ext4_setup_super() fails
ext4: fix potential NULL dereference in ext4_free_inodes_counts()
ext4/jbd2: add metadata checksumming to the list of supported features
...

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ext4: remove mb_groups before tearing down the buddy_cache

We can't have references held on pages in the s_buddy_cache while we are
trying to truncate its pages and put the inode. All the pages mus

ext4: remove mb_groups before tearing down the buddy_cache

We can't have references held on pages in the s_buddy_cache while we are
trying to truncate its pages and put the inode. All the pages must be
gone before we reach clear_inode. This can only be gauranteed if we
can prevent new users from grabbing references to s_buddy_cache's pages.

The original bug can be reproduced and the bug fix can be verified by:

while true; do mount -t ext4 /dev/ram0 /export/hda3/ram0; \
umount /export/hda3/ram0; done &

while true; do cat /proc/fs/ext4/ram0/mb_groups; done

Signed-off-by: Salman Qazi <sqazi@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org

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ext4: add ext4_mb_unload_buddy in the error path

ext4_free_blocks fails to pair an ext4_mb_load_buddy with a matching
ext4_mb_unload_buddy when it fails a memory allocation.

Signed-off-by: Salman Q

ext4: add ext4_mb_unload_buddy in the error path

ext4_free_blocks fails to pair an ext4_mb_load_buddy with a matching
ext4_mb_unload_buddy when it fails a memory allocation.

Signed-off-by: Salman Qazi <sqazi@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org

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ext4: cleanup in ext4_discard_allocated_blocks()

remove 'len' variable in ext4_discard_allocated_blocks() because it is
useless.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "The

ext4: cleanup in ext4_discard_allocated_blocks()

remove 'len' variable in ext4_discard_allocated_blocks() because it is
useless.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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ext4: remove needs_recovery in ext4_mb_init()

needs_recovery in ext4_mb_init() is not used, remove it.

Signed-off-by: Akira Fujita <a-fujita@rs.jp.ne.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.

ext4: remove needs_recovery in ext4_mb_init()

needs_recovery in ext4_mb_init() is not used, remove it.

Signed-off-by: Akira Fujita <a-fujita@rs.jp.ne.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Merge branch 'next' into for-linus

Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

Merge mainline to add prerequisite for ARM ux500 crypto support.