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author | David S. Miller <davem@davemloft.net> | 2012-07-19 11:17:30 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2012-07-19 11:17:30 -0700 |
commit | abaa72d7fd9a20a67b62e6afa0e746e27851dc33 (patch) | |
tree | ebe4134fcc93a6e205e6004b3e652d7a62281651 /fs/buffer.c | |
parent | 67da22d23fa6f3324e03bcd0580b914b2e4afbf3 (diff) | |
parent | 3e4b9459fb0e149c6b74c9e89399a8fc39a92b44 (diff) | |
download | lwn-abaa72d7fd9a20a67b62e6afa0e746e27851dc33.tar.gz lwn-abaa72d7fd9a20a67b62e6afa0e746e27851dc33.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
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; } /* |