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| author | Chao Yu <yuchao0@huawei.com> | 2017-04-25 20:21:38 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-05-02 21:19:45 -0700 |
| commit | 63a94fa1d79dfbb94a2c923f8810e3b45b27570e (patch) | |
| tree | 30b5532d9d9104437329e2f573e2b6b901672f47 /fs/f2fs | |
| parent | bd5b07383a9057f9b6aefad6c784af95ffde8a67 (diff) | |
| download | linux-63a94fa1d79dfbb94a2c923f8810e3b45b27570e.tar.gz linux-63a94fa1d79dfbb94a2c923f8810e3b45b27570e.tar.xz | |
f2fs: introduce __wait_discard_cmd
Just cleanup, no logic change.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/segment.c | 40 |
1 files changed, 18 insertions, 22 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 13e073a9d859..35d5d49e7614 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -997,6 +997,22 @@ out: 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) { @@ -1018,18 +1034,8 @@ 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) @@ -1037,22 +1043,12 @@ 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); |