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| author | Johannes Berg <johannes.berg@intel.com> | 2012-07-30 11:13:03 +0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-07-30 11:13:03 +0400 |
| commit | fcb06702f023a0e7b1e6ebf9746f34b610ca0508 (patch) | |
| tree | db022324c4978dd9af059be38822d23455a45f55 /fs/buffer.c | |
| parent | 5e31fc0815a4e2c72b1b495fe7a0d8f9bfb9e4b4 (diff) | |
| parent | 9dbf5f55f8d35ff9aedc75267f4e4042aaf89755 (diff) | |
| download | linux-fcb06702f023a0e7b1e6ebf9746f34b610ca0508.tar.xz | |
Merge remote-tracking branch 'wireless/master' into mac80211
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; } /* |