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authorChao Yu <yuchao0@huawei.com>2018-01-18 17:23:29 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-01-22 14:56:55 -0800
commit7950e9ac638e84518fbdd5c930939ad46a1068c5 (patch)
tree3ea4ea87d4151ed5929609caa7a5d3631b2ac00e /fs/f2fs
parentd027c48447c2c2fab2b2aa1833436cf24ea567e9 (diff)
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 <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/f2fs.h1
-rw-r--r--fs/f2fs/file.c7
-rw-r--r--fs/f2fs/segment.c5
3 files changed, 13 insertions, 0 deletions
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)
{