[Ocfs2-devel] [PATCH 1/6] ocfs2: Make global quota files blocksize aligned

[Jan Kara]

Change i_size of global quota files so that it always remains aligned to block
size. This is mainly because the end of quota block may contain checksum (if
checksumming is enabled) and it's a bit awkward for it to be "outside" of quota
file (and it makes life harder for ocfs2-tools).

Signed-off-by: Jan Kara <jack at suse.cz>
---
 fs/ocfs2/quota_global.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index edfa60c..5a4ae61 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -211,14 +211,16 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
 
 	mutex_lock_nested(&gqinode->i_mutex, I_MUTEX_QUOTA);
 	if (gqinode->i_size < off + len) {
+		loff_t rounded_end = ALIGN(off + len, sb->s_blocksize);
+
 		down_write(&OCFS2_I(gqinode)->ip_alloc_sem);
-		err = ocfs2_extend_no_holes(gqinode, off + len, off);
+		err = ocfs2_extend_no_holes(gqinode, rounded_end, off);
 		up_write(&OCFS2_I(gqinode)->ip_alloc_sem);
 		if (err < 0)
 			goto out;
 		err = ocfs2_simple_size_update(gqinode,
 					       oinfo->dqi_gqi_bh,
-					       off + len);
+					       rounded_end);
 		if (err < 0)
 			goto out;
 		new = 1;
-- 
1.6.0.2