diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-20 08:44:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-20 08:44:33 -0700 |
commit | 8498ffd66774ce0e8550afc61a56b2cbeee77e9c (patch) | |
tree | 103e47282bff13fca727ead367f6cd95fa44c01f /arch/powerpc/platforms/cell/spufs/sched.c | |
parent | 75d95062185c60356a423f7ab9e975b4293ec4f3 (diff) | |
parent | cd5aeb9f6cf7ada6baa218e01b4299e201497cde (diff) |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Fix vio_bus_probe oops on probe error
powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices
powerpc: Fix /dev/oldmem interface for kdump
powerpc/spufs: Remove invalid semicolon after if statement
powerpc/spufs: reference context while dropping state mutex in scheduler
powerpc/spufs: fix npc setting for NOSCHED contexts
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/sched.c')
-rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 2deeeba7ecc..1c1b627ee84 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -641,8 +641,10 @@ static struct spu *find_victim(struct spu_context *ctx) if (tmp && tmp->prio > ctx->prio && !(tmp->flags & SPU_CREATE_NOSCHED) && - (!victim || tmp->prio > victim->prio)) + (!victim || tmp->prio > victim->prio)) { victim = spu->ctx; + get_spu_context(victim); + } } mutex_unlock(&cbe_spu_info[node].list_mutex); @@ -658,6 +660,7 @@ static struct spu *find_victim(struct spu_context *ctx) * look at another context or give up after X retries. */ if (!mutex_trylock(&victim->state_mutex)) { + put_spu_context(victim); victim = NULL; goto restart; } @@ -670,6 +673,7 @@ static struct spu *find_victim(struct spu_context *ctx) * restart the search. */ mutex_unlock(&victim->state_mutex); + put_spu_context(victim); victim = NULL; goto restart; } @@ -687,6 +691,7 @@ static struct spu *find_victim(struct spu_context *ctx) spu_add_to_rq(victim); mutex_unlock(&victim->state_mutex); + put_spu_context(victim); return spu; } @@ -985,9 +990,11 @@ static int spusched_thread(void *unused) struct spu_context *ctx = spu->ctx; if (ctx) { + get_spu_context(ctx); mutex_unlock(mtx); spusched_tick(ctx); mutex_lock(mtx); + put_spu_context(ctx); } } mutex_unlock(mtx); @@ -1030,7 +1037,7 @@ void spuctx_switch_state(struct spu_context *ctx, node = spu->node; if (old_state == SPU_UTIL_USER) atomic_dec(&cbe_spu_info[node].busy_spus); - if (new_state == SPU_UTIL_USER); + if (new_state == SPU_UTIL_USER) atomic_inc(&cbe_spu_info[node].busy_spus); } } |