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authorTrond Myklebust <Trond.Myklebust@netapp.com>2012-07-16 12:01:42 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-07-16 12:01:42 -0400
commit8626e4a42675ff9903f7d4fbf14d8ebc11b5926c (patch)
treec631dfe2854cb1382a5d8f5aa11b071762ddf27d /fs/buffer.c
parenta8d8f02cf0c379693762107afe812b9e52090e39 (diff)
parent9249e17fe094d853d1ef7475dd559a2cc7e23d42 (diff)
Merge commit '9249e17fe094d853d1ef7475dd559a2cc7e23d42' into nfs-for-3.6
Resolve conflicts with the VFS atomic open and sget changes. Conflicts: fs/nfs/nfs4proc.c
Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 838a9cf246b..c7062c896d7 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1036,6 +1036,9 @@ grow_buffers(struct block_device *bdev, sector_t block, int size)
static struct buffer_head *
__getblk_slow(struct block_device *bdev, sector_t block, int size)
{
+ int ret;
+ struct buffer_head *bh;
+
/* Size must be multiple of hard sectorsize */
if (unlikely(size & (bdev_logical_block_size(bdev)-1) ||
(size < 512 || size > PAGE_SIZE))) {
@@ -1048,20 +1051,21 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size)
return NULL;
}
- for (;;) {
- struct buffer_head * bh;
- int ret;
+retry:
+ bh = __find_get_block(bdev, block, size);
+ if (bh)
+ return bh;
+ ret = grow_buffers(bdev, block, size);
+ if (ret == 0) {
+ free_more_memory();
+ goto retry;
+ } else if (ret > 0) {
bh = __find_get_block(bdev, block, size);
if (bh)
return bh;
-
- ret = grow_buffers(bdev, block, size);
- if (ret < 0)
- return NULL;
- if (ret == 0)
- free_more_memory();
}
+ return NULL;
}
/*