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| author | Jeremy Kerr <jk@ozlabs.org> | 2008-04-23 16:02:10 +1000 |
|---|---|---|
| committer | Jeremy Kerr <jk@ozlabs.org> | 2008-05-05 13:33:43 +1000 |
| commit | d29694f0681e188cf75477f20904041744e78ef7 (patch) | |
| tree | 5c515a71302a1ad4a560c028e6a745bc11b6e400 /arch | |
| parent | c0bace5c7029ef7cbb6e6ffaa0469a3c042e5029 (diff) | |
| download | linux-riscv-d29694f0681e188cf75477f20904041744e78ef7.tar.gz linux-riscv-d29694f0681e188cf75477f20904041744e78ef7.tar.bz2 linux-riscv-d29694f0681e188cf75477f20904041744e78ef7.zip | |
[POWERPC] spufs: don't acquire state_mutex interruptible while performing callback
There's currently no way to tell if spu_process_callback has
returned with the state mutex held, as -EINTR may be returned
by either the syscall or the spu_acquire fail case.
Instead, just do a non-interruptible mutex_lock here.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/run.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index 0634fecfe54c..e764a43b544e 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -294,7 +294,7 @@ static int spu_process_callback(struct spu_context *ctx) u32 ls_pointer, npc; void __iomem *ls; long spu_ret; - int ret, ret2; + int ret; /* get syscall block from local store */ npc = ctx->ops->npc_read(ctx) & ~3; @@ -316,11 +316,9 @@ static int spu_process_callback(struct spu_context *ctx) if (spu_ret <= -ERESTARTSYS) { ret = spu_handle_restartsys(ctx, &spu_ret, &npc); } - ret2 = spu_acquire(ctx); + mutex_lock(&ctx->state_mutex); if (ret == -ERESTARTSYS) return ret; - if (ret2) - return -EINTR; } /* need to re-get the ls, as it may have changed when we released the |