diff options
| author |   Grant Likely <grant.likely@secretlab.ca> | 2012-07-24 22:31:09 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-07-24 22:34:40 -0600 |
| commit | 6aeea3ecc33b1f36dbc3b80461d15a7052ae424f (patch) | |
| tree | bbd273e3e0ca76094aed8e9c77e5adfe2b07f779 /fs/buffer.c | |
| parent | irqdomain: Fix irq_create_direct_mapping() to test irq_domain type. (diff) | |
| parent | Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi (diff) | |
| download | linux-rng-6aeea3ecc33b1f36dbc3b80461d15a7052ae424f.tar.xz linux-rng-6aeea3ecc33b1f36dbc3b80461d15a7052ae424f.zip | |
Merge remote-tracking branch 'origin' into irqdomain/next
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 838a9cf246bd..c7062c896d7c 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; } /* |