diff options
| author | Christoph Hellwig <hch@lst.de> | 2008-02-08 07:50:41 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-02-08 11:52:35 +0300 |
| commit | eebead5b8ff89340dc18ceec996157d0eb7d0287 (patch) | |
| tree | 65b88470bb8b2b14ea839234eba4c2ca3b60e587 /arch/powerpc/platforms/cell/spufs/spufs.h | |
| parent | 592a607bbc053bc6f614a0e619326009f4b3829e (diff) | |
| download | linux-eebead5b8ff89340dc18ceec996157d0eb7d0287.tar.xz | |
[POWERPC] spufs: Fix state_mutex leaks
Fix various state_mutex leaks. The worst one was introduced by the
interrutible state_mutex conversion but there've been a few before
too. Notably spufs_wait now returns without the state_mutex held
when returning an error, which actually cleans up some code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luke Browning <lukebrowning@us.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 795a1b52538b..2c2fe3c07d72 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -268,6 +268,9 @@ extern char *isolated_loader; * Same as wait_event_interruptible(), except that here * we need to call spu_release(ctx) before sleeping, and * then spu_acquire(ctx) when awoken. + * + * Returns with state_mutex re-acquired when successfull or + * with -ERESTARTSYS and the state_mutex dropped when interrupted. */ #define spufs_wait(wq, condition) \ @@ -278,11 +281,11 @@ extern char *isolated_loader; prepare_to_wait(&(wq), &__wait, TASK_INTERRUPTIBLE); \ if (condition) \ break; \ + spu_release(ctx); \ if (signal_pending(current)) { \ __ret = -ERESTARTSYS; \ break; \ } \ - spu_release(ctx); \ schedule(); \ __ret = spu_acquire(ctx); \ if (__ret) \ |