f2fs: trace f2fs_remove_discard

This patch adds tracepoint to trace f2fs_remove_discard.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 1bb7417b4ebbeb27f5cafb4c22d9c8cc1c2030d9..d6614037e04eb492eb8dce7f677a0ea7403ee4f1 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -822,6 +822,8 @@ static void __remove_discard_cmd(struct f2fs_sb_info *sbi,
 {
        struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
 
+       trace_f2fs_remove_discard(dc->bdev, dc->start, dc->len);
+
        f2fs_bug_on(sbi, dc->ref);
 
        if (dc->error == -EOPNOTSUPP)

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 5d216f7fb05ae05337dde54bfcb8a4e2dcd2983b..0e7a31694ff519e1edf20685091263a499d2bbdb 100644 (file)
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1286,6 +1286,13 @@ DEFINE_EVENT(f2fs_discard, f2fs_issue_discard,
        TP_ARGS(dev, blkstart, blklen)
 );
 
+DEFINE_EVENT(f2fs_discard, f2fs_remove_discard,
+
+       TP_PROTO(struct block_device *dev, block_t blkstart, block_t blklen),
+
+       TP_ARGS(dev, blkstart, blklen)
+);
+
 TRACE_EVENT(f2fs_issue_reset_zone,
 
        TP_PROTO(struct block_device *dev, block_t blkstart),