linux-stable.git/drivers/md/bcache/request.c, branch linux-3.10.y Linux kernel stable tree bcache: Fixed incorrect order of arguments to bio_alloc_bioset() 2013-11-13T03:05:30+00:00 Kent Overstreet kmo@daterainc.com 2013-10-22T22:35:50+00:00 955a23e181561a792d6e4c1572848b7ba306499f commit d4eddd42f592a0cf06818fae694a3d271f842e4d upstream. Signed-off-by: Kent Overstreet <kmo@daterainc.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit d4eddd42f592a0cf06818fae694a3d271f842e4d upstream.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcache: Fix a null ptr deref regression 2013-10-13T23:08:35+00:00 Kent Overstreet kmo@daterainc.com 2013-10-11T00:31:15+00:00 84c8b3b9e17107a74f07dc5e48264034f1410b97 commit 2fe80d3bbf1c8bd9efc5b8154207c8dd104e7306 upstream. Commit c0f04d88e46d ("bcache: Fix flushes in writeback mode") was fixing a reported data corruption bug, but it seems some last minute refactoring or rebasing introduced a null pointer deref. Signed-off-by: Kent Overstreet <kmo@daterainc.com> Reported-by: Gabriel de Perthuis <g2p.code@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 2fe80d3bbf1c8bd9efc5b8154207c8dd104e7306 upstream.

Commit c0f04d88e46d ("bcache: Fix flushes in writeback mode") was fixing
a reported data corruption bug, but it seems some last minute
refactoring or rebasing introduced a null pointer deref.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Reported-by: Gabriel de Perthuis <g2p.code@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcache: Fix flushes in writeback mode 2013-10-05T14:13:09+00:00 Kent Overstreet kmo@daterainc.com 2013-09-24T06:17:36+00:00 30d0e7953b17462b8e42ad374ace70c76e31d410 commit c0f04d88e46d14de51f4baebb6efafb7d59e9f96 upstream. In writeback mode, when we get a cache flush we need to make sure we issue a flush to the backing device. The code for sending down an extra flush was wrong - by cloning the bio we were probably getting flags that didn't make sense for a bare flush, and also the old code was firing for FUA bios, for which we don't need to send a flush to the backing device. This was causing data corruption somehow - the mechanism was never determined, but this patch fixes it for the users that were seeing it. Signed-off-by: Kent Overstreet <kmo@daterainc.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit c0f04d88e46d14de51f4baebb6efafb7d59e9f96 upstream.

In writeback mode, when we get a cache flush we need to make sure we
issue a flush to the backing device.

The code for sending down an extra flush was wrong - by cloning the bio
we were probably getting flags that didn't make sense for a bare flush,
and also the old code was firing for FUA bios, for which we don't need
to send a flush to the backing device.

This was causing data corruption somehow - the mechanism was never
determined, but this patch fixes it for the users that were seeing it.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcache: FUA fixes 2013-08-29T16:47:40+00:00 Kent Overstreet koverstreet@google.com 2013-06-27T00:25:38+00:00 ae61fd4496f9d9290b9e84fc373818b2ee780137 commit e49c7c374e7aacd1f04ecbc21d9dbbeeea4a77d6 upstream. Journal writes need to be marked FUA, not just REQ_FLUSH. And btree node writes have... weird ordering requirements. Signed-off-by: Kent Overstreet <koverstreet@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit e49c7c374e7aacd1f04ecbc21d9dbbeeea4a77d6 upstream.

Journal writes need to be marked FUA, not just REQ_FLUSH. And btree node
writes have... weird ordering requirements.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcache: Advertise that flushes are supported 2013-07-28T23:30:09+00:00 Kent Overstreet kmo@daterainc.com 2013-07-11T01:44:40+00:00 3fcbc17636c83da9d85e2604de4af56c215e6e3c commit 54d12f2b4fd0f218590d1490b41a18d0e2328a9a upstream. Whoops - bcache's flush/FUA was mostly correct, but flushes get filtered out unless we say we support them... Signed-off-by: Kent Overstreet <kmo@daterainc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 54d12f2b4fd0f218590d1490b41a18d0e2328a9a upstream.

Whoops - bcache's flush/FUA was mostly correct, but flushes get filtered
out unless we say we support them...

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcache: Take data offset from the bdev superblock. 2013-04-21T00:56:12+00:00 Kent Overstreet koverstreet@google.com 2013-04-11T22:14:35+00:00 2903381fce71004a7ce24d40fad53ba8236a3921 Add a new superblock version, and consolidate related defines. Signed-off-by: Gabriel de Perthuis <g2p.code+bcache@gmail.com> Signed-off-by: Kent Overstreet <koverstreet@google.com> 
Add a new superblock version, and consolidate related defines.

Signed-off-by: Gabriel de Perthuis <g2p.code+bcache@gmail.com>
Signed-off-by: Kent Overstreet <koverstreet@google.com>
bcache: Don't export utility code, prefix with bch_ 2013-03-28T18:50:55+00:00 Kent Overstreet koverstreet@google.com 2013-03-28T18:50:55+00:00 169ef1cf6171d35550fef85645b83b960e241cff Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: linux-bcache@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk> 
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Cc: linux-bcache@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
bcache: Style/checkpatch fixes 2013-03-25T19:06:13+00:00 Kent Overstreet koverstreet@google.com 2013-03-25T18:46:44+00:00 b1a67b0f4c747ca10c96ebb24f04e2a74b3c298d Took out some nested functions, and fixed some more checkpatch complaints. Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: linux-bcache@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk> 
Took out some nested functions, and fixed some more checkpatch
complaints.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
Cc: linux-bcache@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
bcache: A block layer cache 2013-03-23T23:11:31+00:00 Kent Overstreet koverstreet@google.com 2013-03-23T23:11:31+00:00 cafe563591446cf80bfbc2fe3bc72a2e36cf1060 Does writethrough and writeback caching, handles unclean shutdown, and has a bunch of other nifty features motivated by real world usage. See the wiki at http://bcache.evilpiepirate.org for more. Signed-off-by: Kent Overstreet <koverstreet@google.com> 
Does writethrough and writeback caching, handles unclean shutdown, and
has a bunch of other nifty features motivated by real world usage.

See the wiki at http://bcache.evilpiepirate.org for more.

Signed-off-by: Kent Overstreet <koverstreet@google.com>