ocfs2: Fix oops when extending quota files

We have to mark buffer as uptodate before calling ocfs2_journal_access() and
ocfs2_set_buffer_uptodate() does not do this for us.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 2bdcddd..8fceb0c 100644 (file)
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -174,7 +174,7 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
        struct inode *gqinode = oinfo->dqi_gqinode;
        int offset = off & (sb->s_blocksize - 1);
        sector_t blk = off >> sb->s_blocksize_bits;
-       int err = 0, new = 0;
+       int err = 0, new = 0, ja_type;
        struct buffer_head *bh = NULL;
        handle_t *handle = journal_current_handle();
 
@@ -207,32 +207,28 @@ ssize_t ocfs2_quota_write(struct super_block *sb, int type,
        if ((offset || len < sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE) &&
            !new) {
                err = ocfs2_read_quota_block(gqinode, blk, &bh);
-               if (err) {
-                       mlog_errno(err);
-                       return err;
-               }
-               err = ocfs2_journal_access(handle, gqinode, bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ja_type = OCFS2_JOURNAL_ACCESS_WRITE;
        } else {
                bh = ocfs2_get_quota_block(gqinode, blk, &err);
-               if (!bh) {
-                       mlog_errno(err);
-                       return err;
-               }
-               err = ocfs2_journal_access(handle, gqinode, bh,
-                                          OCFS2_JOURNAL_ACCESS_CREATE);
+               ja_type = OCFS2_JOURNAL_ACCESS_CREATE;
        }
-       if (err < 0) {
-               brelse(bh);
-               goto out;
+       if (err) {
+               mlog_errno(err);
+               return err;
        }
        lock_buffer(bh);
        if (new)
                memset(bh->b_data, 0, sb->s_blocksize);
        memcpy(bh->b_data + offset, data, len);
        flush_dcache_page(bh->b_page);
+       set_buffer_uptodate(bh);
        unlock_buffer(bh);
        ocfs2_set_buffer_uptodate(gqinode, bh);
+       err = ocfs2_journal_access(handle, gqinode, bh, ja_type);
+       if (err < 0) {
+               brelse(bh);
+               goto out;
+       }
        err = ocfs2_journal_dirty(handle, bh);
        brelse(bh);
        if (err < 0)