* [PATCH 1/2] f2fs: introduce __issue_discard_cmd
@ 2017-04-25 12:21 Chao Yu
2017-04-25 12:21 ` [PATCH 2/2] f2fs: introduce __wait_discard_cmd Chao Yu
0 siblings, 1 reply; 2+ messages in thread
From: Chao Yu @ 2017-04-25 12:21 UTC (permalink / raw)
To: jaegeuk; +Cc: linux-f2fs-devel, linux-kernel, chao, Chao Yu
Just cleanup, no logic change.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fs/f2fs/segment.c | 63 ++++++++++++++++++++++++++-----------------------------
1 file changed, 30 insertions(+), 33 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 68a9f8d4d628..57989c2c3a6a 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -974,6 +974,32 @@ static int __queue_discard_cmd(struct f2fs_sb_info *sbi,
return 0;
}
+static void __issue_discard_cmd(struct f2fs_sb_info *sbi, bool issue_cond)
+{
+ struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
+ struct list_head *pend_list;
+ struct discard_cmd *dc, *tmp;
+ struct blk_plug plug;
+ int i, iter = 0;
+
+ mutex_lock(&dcc->cmd_lock);
+ blk_start_plug(&plug);
+ for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
+ pend_list = &dcc->pend_list[i];
+ list_for_each_entry_safe(dc, tmp, pend_list, list) {
+ f2fs_bug_on(sbi, dc->state != D_PREP);
+
+ if (!issue_cond || is_idle(sbi))
+ __submit_discard_cmd(sbi, dc);
+ if (issue_cond && iter++ > DISCARD_ISSUE_RATE)
+ goto out;
+ }
+ }
+out:
+ blk_finish_plug(&plug);
+ mutex_unlock(&dcc->cmd_lock);
+}
+
/* This should be covered by global mutex, &sit_i->sentry_lock */
void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr)
{
@@ -996,27 +1022,16 @@ void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr)
void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi)
{
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
- struct list_head *pend_list;
struct list_head *wait_list = &(dcc->wait_list);
struct discard_cmd *dc, *tmp;
- struct blk_plug plug;
- int i;
- mutex_lock(&dcc->cmd_lock);
-
- blk_start_plug(&plug);
- for (i = 0; i < MAX_PLIST_NUM; i++) {
- pend_list = &dcc->pend_list[i];
- list_for_each_entry_safe(dc, tmp, pend_list, list)
- __submit_discard_cmd(sbi, dc);
- }
- blk_finish_plug(&plug);
+ __issue_discard_cmd(sbi, false);
+ mutex_lock(&dcc->cmd_lock);
list_for_each_entry_safe(dc, tmp, wait_list, list) {
wait_for_completion_io(&dc->wait);
__remove_discard_cmd(sbi, dc);
}
-
mutex_unlock(&dcc->cmd_lock);
}
@@ -1025,32 +1040,15 @@ static int issue_discard_thread(void *data)
struct f2fs_sb_info *sbi = data;
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
wait_queue_head_t *q = &dcc->discard_wait_queue;
- struct list_head *pend_list;
struct list_head *wait_list = &dcc->wait_list;
struct discard_cmd *dc, *tmp;
- struct blk_plug plug;
- int iter = 0, i;
repeat:
if (kthread_should_stop())
return 0;
- mutex_lock(&dcc->cmd_lock);
- blk_start_plug(&plug);
- for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
- pend_list = &dcc->pend_list[i];
- list_for_each_entry_safe(dc, tmp, pend_list, list) {
- f2fs_bug_on(sbi, dc->state != D_PREP);
-
- if (is_idle(sbi))
- __submit_discard_cmd(sbi, dc);
-
- if (iter++ > DISCARD_ISSUE_RATE)
- goto next_step;
- }
- }
-next_step:
- blk_finish_plug(&plug);
+ __issue_discard_cmd(sbi, true);
+ mutex_lock(&dcc->cmd_lock);
list_for_each_entry_safe(dc, tmp, wait_list, list) {
if (dc->state == D_DONE) {
wait_for_completion_io(&dc->wait);
@@ -1059,7 +1057,6 @@ static int issue_discard_thread(void *data)
}
mutex_unlock(&dcc->cmd_lock);
- iter = 0;
congestion_wait(BLK_RW_SYNC, HZ/50);
wait_event_interruptible(*q, kthread_should_stop() ||
--
2.12.2.510.ge1104a5ee539
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH 2/2] f2fs: introduce __wait_discard_cmd
2017-04-25 12:21 [PATCH 1/2] f2fs: introduce __issue_discard_cmd Chao Yu
@ 2017-04-25 12:21 ` Chao Yu
0 siblings, 0 replies; 2+ messages in thread
From: Chao Yu @ 2017-04-25 12:21 UTC (permalink / raw)
To: jaegeuk; +Cc: linux-f2fs-devel, linux-kernel, chao, Chao Yu
Just cleanup, no logic change.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
fs/f2fs/segment.c | 40 ++++++++++++++++++----------------------
1 file changed, 18 insertions(+), 22 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 57989c2c3a6a..c88e7535aede 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1000,6 +1000,22 @@ static void __issue_discard_cmd(struct f2fs_sb_info *sbi, bool issue_cond)
mutex_unlock(&dcc->cmd_lock);
}
+static void __wait_discard_cmd(struct f2fs_sb_info *sbi, bool wait_cond)
+{
+ struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
+ struct list_head *wait_list = &(dcc->wait_list);
+ struct discard_cmd *dc, *tmp;
+
+ mutex_lock(&dcc->cmd_lock);
+ list_for_each_entry_safe(dc, tmp, wait_list, list) {
+ if (!wait_cond || dc->state == D_DONE) {
+ wait_for_completion_io(&dc->wait);
+ __remove_discard_cmd(sbi, dc);
+ }
+ }
+ mutex_unlock(&dcc->cmd_lock);
+}
+
/* This should be covered by global mutex, &sit_i->sentry_lock */
void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr)
{
@@ -1021,18 +1037,8 @@ void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr)
/* This comes from f2fs_put_super */
void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi)
{
- struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
- struct list_head *wait_list = &(dcc->wait_list);
- struct discard_cmd *dc, *tmp;
-
__issue_discard_cmd(sbi, false);
-
- mutex_lock(&dcc->cmd_lock);
- list_for_each_entry_safe(dc, tmp, wait_list, list) {
- wait_for_completion_io(&dc->wait);
- __remove_discard_cmd(sbi, dc);
- }
- mutex_unlock(&dcc->cmd_lock);
+ __wait_discard_cmd(sbi, false);
}
static int issue_discard_thread(void *data)
@@ -1040,22 +1046,12 @@ static int issue_discard_thread(void *data)
struct f2fs_sb_info *sbi = data;
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
wait_queue_head_t *q = &dcc->discard_wait_queue;
- struct list_head *wait_list = &dcc->wait_list;
- struct discard_cmd *dc, *tmp;
repeat:
if (kthread_should_stop())
return 0;
__issue_discard_cmd(sbi, true);
-
- mutex_lock(&dcc->cmd_lock);
- list_for_each_entry_safe(dc, tmp, wait_list, list) {
- if (dc->state == D_DONE) {
- wait_for_completion_io(&dc->wait);
- __remove_discard_cmd(sbi, dc);
- }
- }
- mutex_unlock(&dcc->cmd_lock);
+ __wait_discard_cmd(sbi, true);
congestion_wait(BLK_RW_SYNC, HZ/50);
--
2.12.2.510.ge1104a5ee539
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2017-04-25 12:22 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-04-25 12:21 [PATCH 1/2] f2fs: introduce __issue_discard_cmd Chao Yu
2017-04-25 12:21 ` [PATCH 2/2] f2fs: introduce __wait_discard_cmd Chao Yu
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).