summaryrefslogtreecommitdiffstats
path: root/drivers/lightnvm/pblk-cache.c
diff options
context:
space:
mode:
authorHans Holmberg <hans.holmberg@cnexlabs.com>2018-06-01 16:41:13 +0200
committerJens Axboe <axboe@kernel.dk>2018-06-01 17:02:53 +0200
commitcc9c9a00b10eaf33abe1cece2c05ea34601af21b (patch)
treefb118d35b601bc76bb3281d2c26ed33eaeab0710 /drivers/lightnvm/pblk-cache.c
parentlightnvm: pblk: only try to recover lines with written smeta (diff)
downloadlinux-cc9c9a00b10eaf33abe1cece2c05ea34601af21b.tar.xz
linux-cc9c9a00b10eaf33abe1cece2c05ea34601af21b.zip
lightnvm: pblk: kick writer on new flush points
Unless we kick the writer directly when setting a new flush point, the user risks having to wait for up to one second (the default timeout for the write thread to be kicked) for the IO to complete. Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-cache.c')
-rw-r--r--drivers/lightnvm/pblk-cache.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/lightnvm/pblk-cache.c b/drivers/lightnvm/pblk-cache.c
index 29a23111b31c..b1c6d7eb6115 100644
--- a/drivers/lightnvm/pblk-cache.c
+++ b/drivers/lightnvm/pblk-cache.c
@@ -44,13 +44,15 @@ retry:
goto out;
}
- if (unlikely(!bio_has_data(bio)))
- goto out;
-
pblk_ppa_set_empty(&w_ctx.ppa);
w_ctx.flags = flags;
- if (bio->bi_opf & REQ_PREFLUSH)
+ if (bio->bi_opf & REQ_PREFLUSH) {
w_ctx.flags |= PBLK_FLUSH_ENTRY;
+ pblk_write_kick(pblk);
+ }
+
+ if (unlikely(!bio_has_data(bio)))
+ goto out;
for (i = 0; i < nr_entries; i++) {
void *data = bio_data(bio);