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| author | Theodore Ts'o <tytso@mit.edu> | 2019-11-20 05:54:15 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-12-26 19:28:23 +0300 |
| commit | 878520ac45f9f698432d4276db3d9144b83931b6 (patch) | |
| tree | 4d2eb8c8fd49bd852ca2be77e53798fa4b19dbdd /fs/ext4/namei.c | |
| parent | a562c687d115fe5a90be1e27745cc771c1e6cbd9 (diff) | |
| download | linux-878520ac45f9f698432d4276db3d9144b83931b6.tar.xz | |
ext4: save the error code which triggered an ext4_error() in the superblock
This allows the cause of an ext4_error() report to be categorized
based on whether it was triggered due to an I/O error, or an memory
allocation error, or other possible causes. Most errors are caused by
a detected file system inconsistency, so the default code stored in
the superblock will be EXT4_ERR_EFSCORRUPTED.
Link: https://lore.kernel.org/r/20191204032335.7683-1-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/namei.c')
| -rw-r--r-- | fs/ext4/namei.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 1cb42d940784..1bb6099397af 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -156,6 +156,7 @@ static struct buffer_head *__ext4_read_dirblock(struct inode *inode, if (ext4_dx_csum_verify(inode, dirent)) set_buffer_verified(bh); else { + ext4_set_errno(inode->i_sb, EFSBADCRC); ext4_error_inode(inode, func, line, block, "Directory index failed checksum"); brelse(bh); @@ -166,6 +167,7 @@ static struct buffer_head *__ext4_read_dirblock(struct inode *inode, if (ext4_dirblock_csum_verify(inode, bh)) set_buffer_verified(bh); else { + ext4_set_errno(inode->i_sb, EFSBADCRC); ext4_error_inode(inode, func, line, block, "Directory block failed checksum"); brelse(bh); @@ -1527,6 +1529,7 @@ restart: goto next; wait_on_buffer(bh); if (!buffer_uptodate(bh)) { + ext4_set_errno(sb, EIO); EXT4_ERROR_INODE(dir, "reading directory lblock %lu", (unsigned long) block); brelse(bh); @@ -1537,6 +1540,7 @@ restart: !is_dx_internal_node(dir, block, (struct ext4_dir_entry *)bh->b_data) && !ext4_dirblock_csum_verify(dir, bh)) { + ext4_set_errno(sb, EFSBADCRC); EXT4_ERROR_INODE(dir, "checksumming directory " "block %lu", (unsigned long)block); brelse(bh); |