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| author | Dan Magenheimer <dan.magenheimer@oracle.com> | 2012-01-25 22:32:51 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-08 22:14:12 (GMT) |
| commit | 9256a4789be3dae37d00924c03546ba7958ea5a3 (patch) | |
| tree | b93a1f8cc641f11fc5da043f8ffb48a40666d84d /fs/ext4/ext4_jbd2.h | |
| parent | c5b1247bd1c3ab6722acfa95213be9a16bfb664c (diff) | |
| download | linux-fsl-qoriq-9256a4789be3dae37d00924c03546ba7958ea5a3.tar.xz | |
zcache: fix deadlock condition
I discovered this deadlock condition awhile ago working on RAMster
but it affects zcache as well. The list spinlock must be
locked prior to the page spinlock and released after. As
a result, the page copy must also be done while the locks are held.
Applies to 3.2. Konrad, please push (via GregKH?)...
this is definitely a bug fix so need not be pushed during
a -rc0 window.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/ext4/ext4_jbd2.h')
0 files changed, 0 insertions, 0 deletions