dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

Don't try to make md arrays dirty if that is not meaningful. 

Arrays personalities such as 'raid0' and 'linear' have no redundancy,
and so marking them as 'clean' or 'dirty' is not meaningful.
So always allow write requests without requiring a superblock update.

Such arrays types are detected by ->sync_request being NULL.  If it is
not possible to send a sync request we don't need a 'dirty' flag because
all a dirty flag does is trigger some sync_requests.

Signed-off-by: Neil Brown <neilb@suse.de>
This commit is contained in:
Neil Brown 2008-06-28 08:31:27 +10:00
parent f48ed53838
commit 1a0fd49773
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/md/md.c
View File

@ -5536,6 +5536,8 @@ void md_allow_write(mddev_t *mddev)
return;
if (mddev->ro)
return;
if (!mddev->pers->sync_request)
return;
spin_lock_irq(&mddev->write_lock);
if (mddev->in_sync) {