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

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commit 292db1bc6c upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Darrick J. Wong
2015-06-21 21:10:51 -04:00
committed by Greg Kroah-Hartman
parent b9f1b63992
commit 438a985247
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/indirect.c
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@@ -577,7 +577,7 @@ 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;
}
goal = ext4_find_goal(inode, map->m_lblk, partial);