ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bdev: add unmap descriptor count check

Browse Source 
Validate the number of unmap descriptors in the generic bdev layer
before calling the blockdev-specific unmap function.

Change-Id: Ib24e7ec63f782f23f2ee3e63393aa8463123fdb4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2016-10-05 13:57:49 -07:00
parent 898c10147c
commit 624ade2814
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
lib/bdev/bdev.c
View File

@ -665,6 +665,17 @@ spdk_bdev_unmap(struct spdk_bdev *bdev, struct spdk_io_channel *ch,
struct spdk_bdev_io *bdev_io;
int rc;
if (bdesc_count == 0) {
SPDK_ERRLOG("Invalid bdesc_count 0\n");
return NULL;
}
if (bdesc_count > bdev->max_unmap_bdesc_count) {
SPDK_ERRLOG("Invalid bdesc_count %u > max_unmap_bdesc_count %u\n",
bdesc_count, bdev->max_unmap_bdesc_count);
return NULL;
}
bdev_io = spdk_bdev_get_io();
if (!bdev_io) {
SPDK_ERRLOG("bdev_io memory allocation failed duing unmap\n");