openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Jan Kara 2008-11-25 15:31:28 +01:00 committed by Mark Fasheh
parent 85eb8b73d6
commit af09e51b68
1 changed files with 12 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
fs/ocfs2/quota_global.c
View File

@ -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)