Patch "brd: Fix discard request processing" has been added to the 4.5-stable tree

This is a note to let you know that I've just added the patch titled

brd: Fix discard request processing

to the 4.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
brd-fix-discard-request-processing.patch
and it can be found in the queue-4.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Bart Van Assche <[email protected]>
Date: Tue, 15 Dec 2015 16:38:22 +0100
Subject: brd: Fix discard request processing

From: Bart Van Assche <[email protected]>

commit 5e4298be45e83ecdffaabb370eea9396889b07f1 upstream.

Avoid that discard requests with size => PAGE_SIZE fail with -EIO. Refuse discard requests if the discard size is not a multiple of the page size.

---
 drivers/block/brd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -341,7 +341,7 @@ static blk_qc_t brd_make_request(struct
 
 	if (unlikely(bio->bi_rw & REQ_DISCARD)) {
 		if (sector & ((PAGE_SIZE >> SECTOR_SHIFT) - 1) ||
-		    bio->bi_iter.bi_size & PAGE_MASK)
+		    bio->bi_iter.bi_size & ~PAGE_MASK)
 			goto io_error;
 		discard_from_brd(brd, sector, bio->bi_iter.bi_size);
 		goto out;

Patches currently in stable-queue which might be from [email protected] are

queue-4.5/ib-srpt-simplify-srpt_handle_tsk_mgmt.patch queue-4.5/sd-fix-discard-granularity-when-lbprz-1.patch queue-4.5/brd-fix-discard-request-processing.patch