From 2bda542d59f970b61095bd8205c6c76062f286e3 Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Fri, 27 Feb 2015 15:56:16 +0800 Subject: [PATCH] f2fs: fix block_ops trace point block operations is used to flush all dirty node and dentry blocks in the page cache and suspend ordinary writing activities, however, there are some facts such like cp error or mount read-only etc which lead to block operations can't be invoked. Current trace point print block_ops start premature even if block_ops doesn't have opportunity to execute. This patch fix it by move block_ops trace point just before block_ops. Signed-off-by: Wanpeng Li Signed-off-by: Jaegeuk Kim --- fs/f2fs/checkpoint.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 4d5e697..e9f30ab 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1047,8 +1047,6 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); unsigned long long ckpt_ver; - trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); - mutex_lock(&sbi->cp_mutex); if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && @@ -1058,6 +1056,9 @@ void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) goto out; if (f2fs_readonly(sbi->sb)) goto out; + + trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); + if (block_operations(sbi)) goto out; -- 2.7.4