diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/fault.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/fault.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c index 720e111f1f6..825001c2b09 100644 --- a/arch/powerpc/platforms/cell/spufs/fault.c +++ b/arch/powerpc/platforms/cell/spufs/fault.c @@ -107,7 +107,7 @@ int spufs_handle_class1(struct spu_context *ctx) u64 ea, dsisr, access; unsigned long flags; unsigned flt = 0; - int ret; + int ret, ret2; /* * dar and dsisr get passed from the registers @@ -146,7 +146,14 @@ int spufs_handle_class1(struct spu_context *ctx) if (ret) ret = spu_handle_mm_fault(current->mm, ea, dsisr, &flt); - spu_acquire(ctx); + /* + * If spu_acquire fails due to a pending signal we just want to return + * EINTR to userspace even if that means missing the dma restart or + * updating the page fault statistics. + */ + ret2 = spu_acquire(ctx); + if (ret2) + goto out; /* * Clear dsisr under ctxt lock after handling the fault, so that @@ -177,6 +184,7 @@ int spufs_handle_class1(struct spu_context *ctx) } else spufs_handle_event(ctx, ea, SPE_EVENT_SPE_DATA_STORAGE); + out: spuctx_switch_state(ctx, SPU_UTIL_SYSTEM); return ret; } |