From: Darrick J. Wong Date: Mon, 22 Jun 2015 01:10:51 +0000 (-0400) Subject: ext4: don't retry file block mapping on bigalloc fs with non-extent file X-Git-Tag: v3.4.110~27 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ba0674bed6f8b830c9653015f431794d9c8efda;p=thirdparty%2Fkernel%2Fstable.git ext4: don't retry file block mapping on bigalloc fs with non-extent file commit 292db1bc6c105d86111e858859456bcb11f90f91 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 Signed-off-by: Theodore Ts'o Signed-off-by: Zefan Li --- diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index 6dc6153dc462c..f819837aa193e 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -705,7 +705,7 @@ 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);