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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-18 21:12:45 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-18 21:12:45 +0200 |
commit | e75437fb9322cf0ac707046a12d78a25f9d52ccf (patch) | |
tree | 959fbda9d606f500e5c554eb68984111a9e6b3b3 /drivers/block/xen-blkfront.c | |
parent | Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block (diff) | |
parent | block: disable entropy contributions for nonrot devices (diff) | |
download | linux-e75437fb9322cf0ac707046a12d78a25f9d52ccf.tar.xz linux-e75437fb9322cf0ac707046a12d78a25f9d52ccf.zip |
Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block
Pull block layer driver update from Jens Axboe:
"This is the block driver pull request for 3.18. Not a lot in there
this round, and nothing earth shattering.
- A round of drbd fixes from the linbit team, and an improvement in
asender performance.
- Removal of deprecated (and unused) IRQF_DISABLED flag in rsxx and
hd from Michael Opdenacker.
- Disable entropy collection from flash devices by default, from Mike
Snitzer.
- A small collection of xen blkfront/back fixes from Roger Pau Monné
and Vitaly Kuznetsov"
* 'for-3.18/drivers' of git://git.kernel.dk/linux-block:
block: disable entropy contributions for nonrot devices
xen, blkfront: factor out flush-related checks from do_blkif_request()
xen-blkback: fix leak on grant map error path
xen/blkback: unmap all persistent grants when frontend gets disconnected
rsxx: Remove deprecated IRQF_DISABLED
block: hd: remove deprecated IRQF_DISABLED
drbd: use RB_DECLARE_CALLBACKS() to define augment callbacks
drbd: compute the end before rb_insert_augmented()
drbd: Add missing newline in resync progress display in /proc/drbd
drbd: reduce lock contention in drbd_worker
drbd: Improve asender performance
drbd: Get rid of the WORK_PENDING macro
drbd: Get rid of the __no_warn and __cond_lock macros
drbd: Avoid inconsistent locking warning
drbd: Remove superfluous newline from "resync_extents" debugfs entry.
drbd: Use consistent names for all the bi_end_io callbacks
drbd: Use better variable names
Diffstat (limited to 'drivers/block/xen-blkfront.c')
-rw-r--r-- | drivers/block/xen-blkfront.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 37af03e9d859..5ac312f6e0be 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -582,6 +582,14 @@ static inline void flush_requests(struct blkfront_info *info) notify_remote_via_irq(info->irq); } +static inline bool blkif_request_flush_valid(struct request *req, + struct blkfront_info *info) +{ + return ((req->cmd_type != REQ_TYPE_FS) || + ((req->cmd_flags & (REQ_FLUSH | REQ_FUA)) && + !info->flush_op)); +} + /* * do_blkif_request * read a block; request is in a request queue @@ -604,9 +612,7 @@ static void do_blkif_request(struct request_queue *rq) blk_start_request(req); - if ((req->cmd_type != REQ_TYPE_FS) || - ((req->cmd_flags & (REQ_FLUSH | REQ_FUA)) && - !info->flush_op)) { + if (blkif_request_flush_valid(req, info)) { __blk_end_request_all(req, -EIO); continue; } |