diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-03-30 09:07:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-30 09:07:43 +0200 |
| commit | 9f644c4ba86b76159d36747fda7da496f72a1872 (patch) | |
| tree | 31e025a5f283aff691fb636bf07fd0b445cf07a3 /fs/btrfs/compression.c | |
| parent | 1b7155f7de119870f0d3fad89f125de2ff6c16be (diff) | |
| parent | 0ce790e7d736cedc563e1fb4e998babf5a4dbc3d (diff) | |
Merge commit 'v2.6.39-rc1' into perf/urgent
Merge reason: use the post-merge-window tree.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 4d2110eafe2..41d1d7c70e2 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -340,6 +340,8 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, WARN_ON(start & ((u64)PAGE_CACHE_SIZE - 1)); cb = kmalloc(compressed_bio_size(root, compressed_len), GFP_NOFS); + if (!cb) + return -ENOMEM; atomic_set(&cb->pending_bios, 0); cb->errors = 0; cb->inode = inode; @@ -354,6 +356,10 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS); + if(!bio) { + kfree(cb); + return -ENOMEM; + } bio->bi_private = cb; bio->bi_end_io = end_compressed_bio_write; atomic_inc(&cb->pending_bios); @@ -657,8 +663,9 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, atomic_inc(&cb->pending_bios); if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) { - btrfs_lookup_bio_sums(root, inode, comp_bio, - sums); + ret = btrfs_lookup_bio_sums(root, inode, + comp_bio, sums); + BUG_ON(ret); } sums += (comp_bio->bi_size + root->sectorsize - 1) / root->sectorsize; @@ -683,8 +690,10 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0); BUG_ON(ret); - if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) - btrfs_lookup_bio_sums(root, inode, comp_bio, sums); + if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) { + ret = btrfs_lookup_bio_sums(root, inode, comp_bio, sums); + BUG_ON(ret); + } ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0); BUG_ON(ret); |