From 7950e9ac638e84518fbdd5c930939ad46a1068c5 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Thu, 18 Jan 2018 17:23:29 +0800 Subject: f2fs: stop gc/discard thread after fs shutdown Once filesystem shuts down, daemons like gc/discard thread should be aware of it, and do exit, in addtion, drop all cached pending discard commands and turn off real-time discard mode. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 1 + fs/f2fs/file.c | 7 +++++++ fs/f2fs/segment.c | 5 +++++ 3 files changed, 13 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 365faebd27f9..b7ba496af28f 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -2726,6 +2726,7 @@ void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); void init_discard_policy(struct discard_policy *dpolicy, int discard_type, unsigned int granularity); +void drop_discard_cmd(struct f2fs_sb_info *sbi); void stop_discard_thread(struct f2fs_sb_info *sbi); bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi); void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc); diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index e20b01acbd2c..84306c718e68 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1866,6 +1866,13 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg) ret = -EINVAL; goto out; } + + stop_gc_thread(sbi); + stop_discard_thread(sbi); + + drop_discard_cmd(sbi); + clear_opt(sbi, DISCARD); + f2fs_update_time(sbi, REQ_TIME); out: mnt_drop_write_file(filp); diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 2e8e054db49d..e5739ce23a72 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1263,6 +1263,11 @@ static bool __drop_discard_cmd(struct f2fs_sb_info *sbi) return dropped; } +void drop_discard_cmd(struct f2fs_sb_info *sbi) +{ + __drop_discard_cmd(sbi); +} + static unsigned int __wait_one_discard_bio(struct f2fs_sb_info *sbi, struct discard_cmd *dc) { -- cgit v1.2.3