UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

rbd: make discard trigger copy-on-write 

Discard requests are a form of write, so they should go through the
same process as plain write requests and trigger copy-on-write for
layered images.

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Josh Durgin 2014-04-04 17:49:12 -07:00 committed by Ilya Dryomov
parent d0265de7c3
commit 1c220881e3
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/block/rbd.c
View File

@ -2851,7 +2851,8 @@ static bool img_obj_request_simple(struct rbd_obj_request *obj_request)
rbd_dev = img_request->rbd_dev; rbd_dev = img_request->rbd_dev;
/* Reads */ /* Reads */
if (!img_request_write_test(img_request)) if (!img_request_write_test(img_request) &&
!img_request_discard_test(img_request))
return true; return true;
/* Non-layered writes */ /* Non-layered writes */