redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

md/raid5: suspend shouldn't affect read requests. 

md allows write to regions on an array to be suspended temporarily.
This allows user-space to participate is aspects of reshape.
In particular, data can be copied with not risk of a race.
We should not be blocking read requests though, so don't.

Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
hifive-unleashed-5.1
NeilBrown 2009-07-01 13:15:35 +10:00
parent 0909dc448c
commit a5c308d4d1
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/md/raid5.c
View File

@ -3702,7 +3702,8 @@ static int make_request(struct request_queue *q, struct bio * bi)
/* FIXME what if we get a false positive because these
* are being updated.
*/
if (logical_sector >= mddev->suspend_lo &&
if (bio_data_dir(bi) == WRITE &&
logical_sector >= mddev->suspend_lo &&
logical_sector < mddev->suspend_hi) {
release_stripe(sh);
schedule();