lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

writeback: check for registered bdi in flusher add and inode dirty

Browse Source 
Also a debugging aid. We want to catch dirty inodes being added to
backing devices that don't do writeback.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
2009-09-09 09:10:25 +02:00
parent d993831fa7
commit 500b067c5e
3 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
fs/fs-writeback.c
View File

@ -1046,6 +1046,14 @@ void __mark_inode_dirty(struct inode *inode, int flags)
*/
if (!was_dirty) {
struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
struct backing_dev_info *bdi = wb->bdi;
if (bdi_cap_writeback_dirty(bdi) &&
!test_bit(BDI_registered, &bdi->state)) {
WARN_ON(1);
printk(KERN_ERR "bdi-%s not registered\n",
bdi->name);
}
inode->dirtied_when = jiffies;
list_move(&inode->i_list, &wb->b_dirty);