From 9f455eeafde3d81cf36ea9979ca6596cf808bcf2 Mon Sep 17 00:00:00 2001 From: Gioh Kim Date: Mon, 19 Apr 2021 09:37:11 +0200 Subject: [PATCH] block/rnbd-clt: Replace {NO_WAIT,WAIT} with RTRS_PERMIT_{WAIT,NOWAIT} They are defined with the same value and similar meaning, let's remove one of them, then we can remove {WAIT,NOWAIT}. Also change the type of 'wait' from 'int' to 'enum wait_type' to make it clear. Cc: Leon Romanovsky Cc: linux-rdma@vger.kernel.org Signed-off-by: Guoqing Jiang Reviewed-by: Md Haris Iqbal Signed-off-by: Gioh Kim Signed-off-by: Jack Wang Reviewed-by: Chaitanya Kulkarni Acked-by: Jason Gunthorpe Reviewed-by: Leon Romanovsky Link: https://lore.kernel.org/r/20210419073722.15351-9-gi-oh.kim@ionos.com Signed-off-by: Jens Axboe --- drivers/block/rnbd/rnbd-clt.c | 42 +++++++++++--------------- drivers/infiniband/ulp/rtrs/rtrs-clt.c | 4 +-- drivers/infiniband/ulp/rtrs/rtrs.h | 6 ++-- 3 files changed, 22 insertions(+), 30 deletions(-) diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c index 4e687ec88721..652b41cc4492 100644 --- a/drivers/block/rnbd/rnbd-clt.c +++ b/drivers/block/rnbd/rnbd-clt.c @@ -312,13 +312,11 @@ static void rnbd_rerun_all_if_idle(struct rnbd_clt_session *sess) static struct rtrs_permit *rnbd_get_permit(struct rnbd_clt_session *sess, enum rtrs_clt_con_type con_type, - int wait) + enum wait_type wait) { struct rtrs_permit *permit; - permit = rtrs_clt_get_permit(sess->rtrs, con_type, - wait ? RTRS_PERMIT_WAIT : - RTRS_PERMIT_NOWAIT); + permit = rtrs_clt_get_permit(sess->rtrs, con_type, wait); if (likely(permit)) /* We have a subtle rare case here, when all permits can be * consumed before busy counter increased. This is safe, @@ -344,7 +342,7 @@ static void rnbd_put_permit(struct rnbd_clt_session *sess, static struct rnbd_iu *rnbd_get_iu(struct rnbd_clt_session *sess, enum rtrs_clt_con_type con_type, - int wait) + enum wait_type wait) { struct rnbd_iu *iu; struct rtrs_permit *permit; @@ -354,9 +352,7 @@ static struct rnbd_iu *rnbd_get_iu(struct rnbd_clt_session *sess, return NULL; } - permit = rnbd_get_permit(sess, con_type, - wait ? RTRS_PERMIT_WAIT : - RTRS_PERMIT_NOWAIT); + permit = rnbd_get_permit(sess, con_type, wait); if (unlikely(!permit)) { kfree(iu); return NULL; @@ -435,16 +431,11 @@ static void msg_conf(void *priv, int errno) schedule_work(&iu->work); } -enum wait_type { - NO_WAIT = 0, - WAIT = 1 -}; - static int send_usr_msg(struct rtrs_clt *rtrs, int dir, struct rnbd_iu *iu, struct kvec *vec, size_t len, struct scatterlist *sg, unsigned int sg_len, void (*conf)(struct work_struct *work), - int *errno, enum wait_type wait) + int *errno, int wait) { int err; struct rtrs_clt_req_ops req_ops; @@ -476,7 +467,8 @@ static void msg_close_conf(struct work_struct *work) rnbd_clt_put_dev(dev); } -static int send_msg_close(struct rnbd_clt_dev *dev, u32 device_id, bool wait) +static int send_msg_close(struct rnbd_clt_dev *dev, u32 device_id, + enum wait_type wait) { struct rnbd_clt_session *sess = dev->sess; struct rnbd_msg_close msg; @@ -530,7 +522,7 @@ static void msg_open_conf(struct work_struct *work) * If server thinks its fine, but we fail to process * then be nice and send a close to server. */ - (void)send_msg_close(dev, device_id, NO_WAIT); + send_msg_close(dev, device_id, RTRS_PERMIT_NOWAIT); } } kfree(rsp); @@ -554,7 +546,7 @@ static void msg_sess_info_conf(struct work_struct *work) rnbd_clt_put_sess(sess); } -static int send_msg_open(struct rnbd_clt_dev *dev, bool wait) +static int send_msg_open(struct rnbd_clt_dev *dev, enum wait_type wait) { struct rnbd_clt_session *sess = dev->sess; struct rnbd_msg_open_rsp *rsp; @@ -601,7 +593,7 @@ static int send_msg_open(struct rnbd_clt_dev *dev, bool wait) return err; } -static int send_msg_sess_info(struct rnbd_clt_session *sess, bool wait) +static int send_msg_sess_info(struct rnbd_clt_session *sess, enum wait_type wait) { struct rnbd_msg_sess_info_rsp *rsp; struct rnbd_msg_sess_info msg; @@ -687,7 +679,7 @@ static void remap_devs(struct rnbd_clt_session *sess) * be asynchronous. */ - err = send_msg_sess_info(sess, NO_WAIT); + err = send_msg_sess_info(sess, RTRS_PERMIT_NOWAIT); if (err) { pr_err("send_msg_sess_info(\"%s\"): %d\n", sess->sessname, err); return; @@ -711,7 +703,7 @@ static void remap_devs(struct rnbd_clt_session *sess) continue; rnbd_clt_info(dev, "session reconnected, remapping device\n"); - err = send_msg_open(dev, NO_WAIT); + err = send_msg_open(dev, RTRS_PERMIT_NOWAIT); if (err) { rnbd_clt_err(dev, "send_msg_open(): %d\n", err); break; @@ -1242,7 +1234,7 @@ find_and_get_or_create_sess(const char *sessname, if (err) goto close_rtrs; - err = send_msg_sess_info(sess, WAIT); + err = send_msg_sess_info(sess, RTRS_PERMIT_WAIT); if (err) goto close_rtrs; @@ -1525,7 +1517,7 @@ struct rnbd_clt_dev *rnbd_clt_map_device(const char *sessname, ret = -EEXIST; goto put_dev; } - ret = send_msg_open(dev, WAIT); + ret = send_msg_open(dev, RTRS_PERMIT_WAIT); if (ret) { rnbd_clt_err(dev, "map_device: failed, can't open remote device, err: %d\n", @@ -1559,7 +1551,7 @@ struct rnbd_clt_dev *rnbd_clt_map_device(const char *sessname, return dev; send_close: - send_msg_close(dev, dev->device_id, WAIT); + send_msg_close(dev, dev->device_id, RTRS_PERMIT_WAIT); del_dev: delete_dev(dev); put_dev: @@ -1619,7 +1611,7 @@ int rnbd_clt_unmap_device(struct rnbd_clt_dev *dev, bool force, destroy_sysfs(dev, sysfs_self); destroy_gen_disk(dev); if (was_mapped && sess->rtrs) - send_msg_close(dev, dev->device_id, WAIT); + send_msg_close(dev, dev->device_id, RTRS_PERMIT_WAIT); rnbd_clt_info(dev, "Device is unmapped\n"); @@ -1653,7 +1645,7 @@ int rnbd_clt_remap_device(struct rnbd_clt_dev *dev) mutex_unlock(&dev->lock); if (!err) { rnbd_clt_info(dev, "Remapping device.\n"); - err = send_msg_open(dev, WAIT); + err = send_msg_open(dev, RTRS_PERMIT_WAIT); if (err) rnbd_clt_err(dev, "remap_device: %d\n", err); } diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c index 0a08b4b742a3..7efd49bdc78c 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c @@ -103,11 +103,11 @@ static inline void __rtrs_put_permit(struct rtrs_clt *clt, * up earlier. * * Context: - * Can sleep if @wait == RTRS_TAG_WAIT + * Can sleep if @wait == RTRS_PERMIT_WAIT */ struct rtrs_permit *rtrs_clt_get_permit(struct rtrs_clt *clt, enum rtrs_clt_con_type con_type, - int can_wait) + enum wait_type can_wait) { struct rtrs_permit *permit; DEFINE_WAIT(wait); diff --git a/drivers/infiniband/ulp/rtrs/rtrs.h b/drivers/infiniband/ulp/rtrs/rtrs.h index 8738e90e715a..2db1b5eb3ab0 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs.h +++ b/drivers/infiniband/ulp/rtrs/rtrs.h @@ -63,9 +63,9 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops, void rtrs_clt_close(struct rtrs_clt *sess); -enum { +enum wait_type { RTRS_PERMIT_NOWAIT = 0, - RTRS_PERMIT_WAIT = 1, + RTRS_PERMIT_WAIT = 1 }; /** @@ -81,7 +81,7 @@ enum rtrs_clt_con_type { struct rtrs_permit *rtrs_clt_get_permit(struct rtrs_clt *sess, enum rtrs_clt_con_type con_type, - int wait); + enum wait_type wait); void rtrs_clt_put_permit(struct rtrs_clt *sess, struct rtrs_permit *permit);