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ext4: don't retry file block mapping on bigalloc fs with non-extent file

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ext4 isn't willing to map clusters to a non-extent file.  Don't signal
this with an out of space error, since the FS will retry the
allocation (which didn't fail) forever.  Instead, return EUCLEAN so
that the operation will fail immediately all the way back to userspace.

(The fix is either to run e2fsck -E bmap2extent, or to chattr +e the file.)

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
This commit is contained in:
Darrick J. Wong 2015-06-21 21:10:51 -04:00 committed by Theodore Ts'o
parent c5e298ae53
commit 292db1bc6c
1 changed files with 1 additions and 1 deletions
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fs/ext4/indirect.c
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@ -565,7 +565,7 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
EXT4_ERROR_INODE(inode, "Can't allocate blocks for "
"non-extent mapped inodes with bigalloc");
return -ENOSPC;
return -EUCLEAN;
}
/* Set up for the direct block allocation */