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| author | Chris Mason <chris.mason@oracle.com> | 2008-01-29 09:10:27 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:59 -0400 |
| commit | aadfeb6e39ad6bde080cb3ab23f4da57ccb25f4a (patch) | |
| tree | 9e5a1158b8857f26bfc7237adaa49e1784a163a4 | |
| parent | c2a8b6e11009398ca9363d8ba8d4e7e40fb897fd (diff) | |
| download | linux-aadfeb6e39ad6bde080cb3ab23f4da57ccb25f4a.tar.bz2 | |
Btrfs: Add some extra debugging around file data checksum failures
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/file-item.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 8 |
2 files changed, 9 insertions, 3 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 614176e52851..3ebbc058d082 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -261,6 +261,10 @@ csum: found: csum_result = btrfs_csum_data(root, data, csum_result, len); btrfs_csum_final(csum_result, (char *)&csum_result); + if (csum_result == 0) { + printk("csum result is 0 for inode %lu offset %Lu\n", inode->i_ino, offset); + } + write_extent_buffer(leaf, &csum_result, (unsigned long)item, BTRFS_CRC32_SIZE); btrfs_mark_buffer_dirty(path->nodes[0]); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 026bc9c4c90d..484551274100 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -318,6 +318,7 @@ int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end) if (ret == -ENOENT || ret == -EFBIG) ret = 0; csum = 0; + printk("no csum found for inode %lu start %Lu\n", inode->i_ino, start); goto out; } read_extent_buffer(path->nodes[0], &csum, (unsigned long)item, @@ -336,7 +337,7 @@ int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end) struct inode *inode = page->mapping->host; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; char *kaddr; - u64 private; + u64 private = ~(u32)0; int ret; struct btrfs_root *root = BTRFS_I(inode)->root; u32 csum = ~(u32)0; @@ -362,8 +363,9 @@ int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end) return 0; zeroit: - printk("btrfs csum failed ino %lu off %llu\n", - page->mapping->host->i_ino, (unsigned long long)start); + printk("btrfs csum failed ino %lu off %llu csum %u private %Lu\n", + page->mapping->host->i_ino, (unsigned long long)start, csum, + private); memset(kaddr + offset, 1, end - start + 1); flush_dcache_page(page); kunmap_atomic(kaddr, KM_IRQ0); |