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authorMark Fasheh <mark.fasheh@oracle.com>2006-10-03 17:44:42 -0700
committerMark Fasheh <mark.fasheh@oracle.com>2006-10-20 15:27:26 -0700
commit0effef776ff95b7a6d6e48a2ef407ecaa8c21f96 (patch)
tree518ac195b10e415bd3c87f6f7c5ddec4c8448058 /fs
parentocfs2: remove spurious d_count check in ocfs2_rename() (diff)
downloadlinux-dev-0effef776ff95b7a6d6e48a2ef407ecaa8c21f96.tar.xz
linux-dev-0effef776ff95b7a6d6e48a2ef407ecaa8c21f96.zip
ocfs2: fix page zeroing during simple extends
The page zeroing code was missing the region between old i_size and new i_size for those extends that didn't actually require a change in space allocation. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/ocfs2/file.c44
1 files changed, 24 insertions, 20 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index d9ba0a931a03..b499c329257b 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -728,31 +728,36 @@ static int ocfs2_extend_file(struct inode *inode,
clusters_to_add = ocfs2_clusters_for_bytes(inode->i_sb, new_i_size) -
OCFS2_I(inode)->ip_clusters;
- if (clusters_to_add) {
- /*
- * protect the pages that ocfs2_zero_extend is going to
- * be pulling into the page cache.. we do this before the
- * metadata extend so that we don't get into the situation
- * where we've extended the metadata but can't get the data
- * lock to zero.
- */
- ret = ocfs2_data_lock(inode, 1);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
+ /*
+ * protect the pages that ocfs2_zero_extend is going to be
+ * pulling into the page cache.. we do this before the
+ * metadata extend so that we don't get into the situation
+ * where we've extended the metadata but can't get the data
+ * lock to zero.
+ */
+ ret = ocfs2_data_lock(inode, 1);
+ if (ret < 0) {
+ mlog_errno(ret);
+ goto out;
+ }
+ if (clusters_to_add) {
ret = ocfs2_extend_allocation(inode, clusters_to_add);
if (ret < 0) {
mlog_errno(ret);
goto out_unlock;
}
+ }
- ret = ocfs2_zero_extend(inode, (u64)new_i_size - tail_to_skip);
- if (ret < 0) {
- mlog_errno(ret);
- goto out_unlock;
- }
+ /*
+ * Call this even if we don't add any clusters to the tree. We
+ * still need to zero the area between the old i_size and the
+ * new i_size.
+ */
+ ret = ocfs2_zero_extend(inode, (u64)new_i_size - tail_to_skip);
+ if (ret < 0) {
+ mlog_errno(ret);
+ goto out_unlock;
}
if (!tail_to_skip) {
@@ -764,8 +769,7 @@ static int ocfs2_extend_file(struct inode *inode,
}
out_unlock:
- if (clusters_to_add) /* this is the only case in which we lock */
- ocfs2_data_unlock(inode, 1);
+ ocfs2_data_unlock(inode, 1);
out:
return ret;