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authorKonstantin Vyshetsky <vkon@google.com>2021-12-13 17:12:03 -0800
committerJaegeuk Kim <jaegeuk@kernel.org>2022-02-02 16:34:46 -0800
commitd2d8e896485a52554cea486816c171dc7240792e (patch)
tree9b4074a5b85d1b3060b7b4a42267cfc7fdd66356 /fs/f2fs/segment.c
parent7d19e3dab0002e527052b0aaf986e8c32e5537bf (diff)
f2fs: move discard parameters into discard_cmd_control
This patch unifies parameters related to how often discard is issued and how many requests go out at the same time by placing them in discard_cmd_control. The move will allow the parameters to be modified in the future without relying on hard-coded values. Signed-off-by: Konstantin Vyshetsky <vkon@google.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
-rw-r--r--fs/f2fs/segment.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 216538b57331..56211e201d51 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1156,14 +1156,14 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
dpolicy->ordered = false;
dpolicy->granularity = granularity;
- dpolicy->max_requests = DEF_MAX_DISCARD_REQUEST;
+ dpolicy->max_requests = dcc->max_discard_request;
dpolicy->io_aware_gran = MAX_PLIST_NUM;
dpolicy->timeout = false;
if (discard_type == DPOLICY_BG) {
- dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
- dpolicy->mid_interval = DEF_MID_DISCARD_ISSUE_TIME;
- dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
+ dpolicy->min_interval = dcc->min_discard_issue_time;
+ dpolicy->mid_interval = dcc->mid_discard_issue_time;
+ dpolicy->max_interval = dcc->max_discard_issue_time;
dpolicy->io_aware = true;
dpolicy->sync = false;
dpolicy->ordered = true;
@@ -1171,12 +1171,12 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
dpolicy->granularity = 1;
if (atomic_read(&dcc->discard_cmd_cnt))
dpolicy->max_interval =
- DEF_MIN_DISCARD_ISSUE_TIME;
+ dcc->min_discard_issue_time;
}
} else if (discard_type == DPOLICY_FORCE) {
- dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
- dpolicy->mid_interval = DEF_MID_DISCARD_ISSUE_TIME;
- dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
+ dpolicy->min_interval = dcc->min_discard_issue_time;
+ dpolicy->mid_interval = dcc->mid_discard_issue_time;
+ dpolicy->max_interval = dcc->max_discard_issue_time;
dpolicy->io_aware = false;
} else if (discard_type == DPOLICY_FSTRIM) {
dpolicy->io_aware = false;
@@ -1781,7 +1781,7 @@ static int issue_discard_thread(void *data)
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
wait_queue_head_t *q = &dcc->discard_wait_queue;
struct discard_policy dpolicy;
- unsigned int wait_ms = DEF_MIN_DISCARD_ISSUE_TIME;
+ unsigned int wait_ms = dcc->min_discard_issue_time;
int issued;
set_freezable();
@@ -2180,6 +2180,10 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
atomic_set(&dcc->discard_cmd_cnt, 0);
dcc->nr_discards = 0;
dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg;
+ dcc->max_discard_request = DEF_MAX_DISCARD_REQUEST;
+ dcc->min_discard_issue_time = DEF_MIN_DISCARD_ISSUE_TIME;
+ dcc->mid_discard_issue_time = DEF_MID_DISCARD_ISSUE_TIME;
+ dcc->max_discard_issue_time = DEF_MAX_DISCARD_ISSUE_TIME;
dcc->undiscard_blks = 0;
dcc->next_pos = 0;
dcc->root = RB_ROOT_CACHED;