From: Wanpeng Li Date: Fri, 27 Feb 2015 07:56:16 +0000 (+0800) Subject: f2fs: fix block_ops trace point X-Git-Tag: v4.1-rc1~87^2~46 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2bda542d59f970b61095bd8205c6c76062f286e3;p=karo-tx-linux.git 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 --- diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 4d5e697d82f6..e9f30abbb6fe 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;