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authorJohn Haxby <john.haxby@oracle.com>2016-01-15 02:17:12 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-15 03:00:49 +0300
commitd6364627eff4c9a2035cebb3aec7415705ba117b (patch)
treea88edb8e4b9538378b4f667e037fdd3c0e5f51cc /fs/ocfs2/file.c
parent3eb5bdf0f47726e3ef0a875e0cce3cca462ee70d (diff)
downloadlinux-d6364627eff4c9a2035cebb3aec7415705ba117b.tar.xz
ocfs2: return non-zero st_blocks for inline data
Some versions of tar assume that files with st_blocks == 0 do not contain any data and will skip reading them entirely. See also commit 9206c561554c ("ext4: return non-zero st_blocks for inline data"). Signed-off-by: John Haxby <john.haxby@oracle.com> Reviewed-by: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Acked-by: Gang He <ghe@suse.com> Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/file.c')
-rw-r--r--fs/ocfs2/file.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 0e5b4515f92e..d63127932509 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1302,6 +1302,14 @@ int ocfs2_getattr(struct vfsmount *mnt,
}
generic_fillattr(inode, stat);
+ /*
+ * If there is inline data in the inode, the inode will normally not
+ * have data blocks allocated (it may have an external xattr block).
+ * Report at least one sector for such files, so tools like tar, rsync,
+ * others don't incorrectly think the file is completely sparse.
+ */
+ if (unlikely(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL))
+ stat->blocks += (stat->size + 511)>>9;
/* We set the blksize from the cluster size for performance */
stat->blksize = osb->s_clustersize;