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| author | Eric Sandeen <sandeen@redhat.com> | 2008-10-18 20:28:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-20 08:52:38 -0700 |
| commit | cdbf6dba28e8e6268c8420857696309470009fd9 (patch) | |
| tree | ab41f3c567a5e94f3c0e500ab796ad3bdd38806c /fs/ext3 | |
| parent | 5ec8b75e3a2a94860ee99b5456fe1a963c8680e5 (diff) | |
| download | kernel_samsung_smdk4412-cdbf6dba28e8e6268c8420857696309470009fd9.zip kernel_samsung_smdk4412-cdbf6dba28e8e6268c8420857696309470009fd9.tar.gz kernel_samsung_smdk4412-cdbf6dba28e8e6268c8420857696309470009fd9.tar.bz2 | |
ext3: avoid printk floods in the face of directory corruption
A very large directory with many read failures (either due to storage
problems, or due to invalid size & blocks from corruption) will generate a
printk storm as the filesystem continues to try to read all the blocks.
This flood of messages can tie up the box until it is complete - which may
be a very long time, especially for very large corrupted values.
This is fixed by only reporting the corruption once each time we try to
read the directory.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Eugene Teo <eugeneteo@kernel.sg>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext3')
| -rw-r--r-- | fs/ext3/dir.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index 28b681e..4c82531 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -102,6 +102,7 @@ static int ext3_readdir(struct file * filp, int err; struct inode *inode = filp->f_path.dentry->d_inode; int ret = 0; + int dir_has_error = 0; sb = inode->i_sb; @@ -148,9 +149,12 @@ static int ext3_readdir(struct file * filp, * of recovering data when there's a bad sector */ if (!bh) { - ext3_error (sb, "ext3_readdir", - "directory #%lu contains a hole at offset %lu", - inode->i_ino, (unsigned long)filp->f_pos); + if (!dir_has_error) { + ext3_error(sb, __func__, "directory #%lu " + "contains a hole at offset %lld", + inode->i_ino, filp->f_pos); + dir_has_error = 1; + } /* corrupt size? Maybe no more blocks to read */ if (filp->f_pos > inode->i_blocks << 9) break; |