return round_down(UINT_MAX, discard_granularity) >> SECTOR_SHIFT;
}
-static void await_bio_endio(struct bio *bio)
-{
- complete(bio->bi_private);
- bio_put(bio);
-}
-
-/*
- * await_bio_chain - ends @bio and waits for every chained bio to complete
- */
-static void await_bio_chain(struct bio *bio)
-{
- DECLARE_COMPLETION_ONSTACK_MAP(done,
- bio->bi_bdev->bd_disk->lockdep_map);
-
- bio->bi_private = &done;
- bio->bi_end_io = await_bio_endio;
- bio_endio(bio);
- blk_wait_io(&done);
-}
-
int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
sector_t nr_sects, gfp_t gfp_mask, struct bio **biop)
{
* is disabled.
*/
cond_resched();
- if (fatal_signal_pending(current)) {
- await_bio_chain(bio);
- return -EINTR;
- }
}
*biop = bio;
nr_sects -= len;
sector += len;
cond_resched();
- if (fatal_signal_pending(current)) {
- await_bio_chain(bio);
- return -EINTR;
- }
}
*biop = bio;
break;
}
cond_resched();
- if (fatal_signal_pending(current)) {
- await_bio_chain(bio);
- return -EINTR;
- }
}
*biop = bio;
bio_put(bio);
}
blk_finish_plug(&plug);
- if (ret && ret != -EINTR && try_write_zeroes) {
+ if (ret && try_write_zeroes) {
if (!(flags & BLKDEV_ZERO_NOFALLBACK)) {
try_write_zeroes = false;
goto retry;
sector += len;
nr_sects -= len;
cond_resched();
- if (fatal_signal_pending(current)) {
- await_bio_chain(bio);
- ret = -EINTR;
- bio = NULL;
- break;
- }
}
if (bio) {
ret = submit_bio_wait(bio);