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authorJavier González <jg@lightnvm.io>2017-06-26 11:57:14 +0200
committerJens Axboe <axboe@kernel.dk>2017-06-26 16:24:53 -0600
commitc2e9f5d457ad6a75516e749a3e544165766ab1ce (patch)
treec7d78f902aecf429b7b422fd0ba4d6b0c8807b9c /drivers/lightnvm/pblk-core.c
parentdb7ada33cdcae7fef0a088141b1e4ab8c25fd395 (diff)
downloadlinux-c2e9f5d457ad6a75516e749a3e544165766ab1ce.tar.bz2
lightnvm: pblk: expose max sec per write on sysfs
Allow to configure the number of maximum sectors per write command through sysfs. This makes it easier to tune write command sizes for different controller configurations. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <matias@cnexlabs.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-core.c')
-rw-r--r--drivers/lightnvm/pblk-core.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 4e0de995cd90..567ed5aa5a0f 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -397,6 +397,11 @@ void pblk_log_read_err(struct pblk *pblk, struct nvm_rq *rqd)
#endif
}
+void pblk_set_sec_per_write(struct pblk *pblk, int sec_per_write)
+{
+ pblk->sec_per_write = sec_per_write;
+}
+
int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd)
{
struct nvm_tgt_dev *dev = pblk->dev;
@@ -478,7 +483,7 @@ out:
int pblk_calc_secs(struct pblk *pblk, unsigned long secs_avail,
unsigned long secs_to_flush)
{
- int max = pblk->max_write_pgs;
+ int max = pblk->sec_per_write;
int min = pblk->min_write_pgs;
int secs_to_sync = 0;