From 4b2fecc84655055a6a1fe9151786992ac04b56ce Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Sat, 20 Sep 2014 22:06:39 -0700 Subject: f2fs: introduce FITRIM in f2fs_ioctl This patch introduces FITRIM in f2fs_ioctl. In this case, f2fs will issue small discards and prefree discards as many as possible for the given area. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/checkpoint.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/f2fs/checkpoint.c') diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index efc530cb74a9..4abf0ba01525 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -997,7 +997,7 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) mutex_lock(&sbi->cp_mutex); - if (!sbi->s_dirty) + if (!sbi->s_dirty && cpc->reason != CP_DISCARD) goto out; if (unlikely(f2fs_cp_error(sbi))) goto out; @@ -1020,7 +1020,7 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) /* write cached NAT/SIT entries to NAT/SIT area */ flush_nat_entries(sbi); - flush_sit_entries(sbi); + flush_sit_entries(sbi, cpc); /* unlock all the fs_lock[] in do_checkpoint() */ do_checkpoint(sbi, cpc); -- cgit v1.2.2