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Btrfs: Add some extra debugging around file data checksum failures
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
parent
c2a8b6e110
commit
aadfeb6e39
2 changed files with 9 additions and 3 deletions
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@ -261,6 +261,10 @@ int btrfs_csum_file_block(struct btrfs_trans_handle *trans,
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found:
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found:
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csum_result = btrfs_csum_data(root, data, csum_result, len);
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csum_result = btrfs_csum_data(root, data, csum_result, len);
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btrfs_csum_final(csum_result, (char *)&csum_result);
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btrfs_csum_final(csum_result, (char *)&csum_result);
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if (csum_result == 0) {
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printk("csum result is 0 for inode %lu offset %Lu\n", inode->i_ino, offset);
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}
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write_extent_buffer(leaf, &csum_result, (unsigned long)item,
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write_extent_buffer(leaf, &csum_result, (unsigned long)item,
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BTRFS_CRC32_SIZE);
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BTRFS_CRC32_SIZE);
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btrfs_mark_buffer_dirty(path->nodes[0]);
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btrfs_mark_buffer_dirty(path->nodes[0]);
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@ -318,6 +318,7 @@ int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
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if (ret == -ENOENT || ret == -EFBIG)
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if (ret == -ENOENT || ret == -EFBIG)
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ret = 0;
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ret = 0;
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csum = 0;
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csum = 0;
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printk("no csum found for inode %lu start %Lu\n", inode->i_ino, start);
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goto out;
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goto out;
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}
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}
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read_extent_buffer(path->nodes[0], &csum, (unsigned long)item,
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read_extent_buffer(path->nodes[0], &csum, (unsigned long)item,
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@ -336,7 +337,7 @@ int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end)
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struct inode *inode = page->mapping->host;
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struct inode *inode = page->mapping->host;
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struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
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struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
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char *kaddr;
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char *kaddr;
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u64 private;
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u64 private = ~(u32)0;
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int ret;
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int ret;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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u32 csum = ~(u32)0;
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u32 csum = ~(u32)0;
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@ -362,8 +363,9 @@ int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end)
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return 0;
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return 0;
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zeroit:
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zeroit:
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printk("btrfs csum failed ino %lu off %llu\n",
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printk("btrfs csum failed ino %lu off %llu csum %u private %Lu\n",
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page->mapping->host->i_ino, (unsigned long long)start);
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page->mapping->host->i_ino, (unsigned long long)start, csum,
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private);
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memset(kaddr + offset, 1, end - start + 1);
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memset(kaddr + offset, 1, end - start + 1);
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flush_dcache_page(page);
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flush_dcache_page(page);
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kunmap_atomic(kaddr, KM_IRQ0);
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kunmap_atomic(kaddr, KM_IRQ0);
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