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| author | Chris Mason <chris.mason@oracle.com> | 2008-02-20 15:44:32 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:00 -0400 |
| commit | 2e1a992e3103624af48f1501aaad4e4d8317f88c (patch) | |
| tree | 51e9107af5ffabfce1b2b366a8e3ecbd234a24e5 /fs/btrfs/file-item.c | |
| parent | 6885f308b557020efce6ef9c1fcc96adaabecbb6 (diff) | |
| download | lwn-2e1a992e3103624af48f1501aaad4e4d8317f88c.tar.gz lwn-2e1a992e3103624af48f1501aaad4e4d8317f88c.zip | |
Btrfs: Make sure bio pages are adjacent during bulk csumming
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
| -rw-r--r-- | fs/btrfs/file-item.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index ee25e50e7c04..e17cce33fe95 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -161,7 +161,6 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans, unsigned long map_len; unsigned long map_start; - path = btrfs_alloc_path(); BUG_ON(!path); again: @@ -315,8 +314,11 @@ next_bvec: if (bio_index < bio->bi_vcnt) { item = (struct btrfs_csum_item *)((char *)item + BTRFS_CRC32_SIZE); - if (item < item_end) + if (item < item_end && offset + PAGE_CACHE_SIZE == + page_offset(bvec->bv_page)) { + offset = page_offset(bvec->bv_page); goto next_bvec; + } } if (eb_token) { unmap_extent_buffer(leaf, eb_token, KM_IRQ1); |