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| author | Mikulas Patocka <mpatocka@redhat.com> | 2014-01-13 19:13:36 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-01-14 11:18:16 -0500 |
| commit | 119bc547362e5252074f81f56b8fcdac45cedff4 (patch) | |
| tree | 57f4c605fc2e70993cadc426fd9f6cf5c4c9c1de | |
| parent | 6a388618f120cdc70cd6b6dbcab5f7a4aff500f6 (diff) | |
| download | blackbird-op-linux-119bc547362e5252074f81f56b8fcdac45cedff4.tar.gz blackbird-op-linux-119bc547362e5252074f81f56b8fcdac45cedff4.zip | |
dm snapshot: use GFP_KERNEL when initializing exceptions
The list of initial exceptions is loaded in the target constructor. We
are allowed to allocate memory with GFP_KERNEL at this point. So,
change alloc_completed_exception to use GFP_KERNEL when being called
from the constructor.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-snap.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 944690bafd93..717718558bd9 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -610,12 +610,12 @@ static struct dm_exception *dm_lookup_exception(struct dm_exception_table *et, return NULL; } -static struct dm_exception *alloc_completed_exception(void) +static struct dm_exception *alloc_completed_exception(gfp_t gfp) { struct dm_exception *e; - e = kmem_cache_alloc(exception_cache, GFP_NOIO); - if (!e) + e = kmem_cache_alloc(exception_cache, gfp); + if (!e && gfp == GFP_NOIO) e = kmem_cache_alloc(exception_cache, GFP_ATOMIC); return e; @@ -697,7 +697,7 @@ static int dm_add_exception(void *context, chunk_t old, chunk_t new) struct dm_snapshot *s = context; struct dm_exception *e; - e = alloc_completed_exception(); + e = alloc_completed_exception(GFP_KERNEL); if (!e) return -ENOMEM; @@ -1405,7 +1405,7 @@ static void pending_complete(struct dm_snap_pending_exception *pe, int success) goto out; } - e = alloc_completed_exception(); + e = alloc_completed_exception(GFP_NOIO); if (!e) { down_write(&s->lock); __invalidate_snapshot(s, -ENOMEM); |
