From: Jaegeuk Kim Date: Thu, 23 Feb 2017 03:58:23 +0000 (-0800) Subject: f2fs: wait for discard completion after submission X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=40465257ac4159e9ebfba10ee502e795b917da76;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git f2fs: wait for discard completion after submission We don't need to wait for each discard commands when unmounting the image. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 028db55375a4..df60e1502b82 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -676,8 +676,12 @@ void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr) struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; struct list_head *wait_list = &(dcc->discard_cmd_list); struct discard_cmd *dc, *tmp; + struct blk_plug plug; mutex_lock(&dcc->cmd_lock); + + blk_start_plug(&plug); + list_for_each_entry_safe(dc, tmp, wait_list, list) { if (blkaddr == NULL_ADDR) { @@ -686,9 +690,6 @@ void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr) submit_bio(dc->bio); atomic_inc(&dcc->submit_discard); } - wait_for_completion_io(&dc->wait); - - __remove_discard_cmd(sbi, dc); continue; } @@ -699,6 +700,15 @@ void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr) __remove_discard_cmd(sbi, dc); } } + blk_finish_plug(&plug); + + /* this comes from f2fs_put_super */ + if (blkaddr == NULL_ADDR) { + 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); }