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authorChao Yu <chao2.yu@samsung.com>2014-05-06 16:51:24 +0800
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2014-05-07 10:21:59 +0900
commite57484343898094bb8f72a2aa1a50929d27aa027 (patch)
tree546dabf60fe27846c3a8ea2a834a9bb5bec4b42c /fs/f2fs
parentecda0de3430455378f1c02523bf3ad71d91d613a (diff)
downloadop-kernel-dev-e57484343898094bb8f72a2aa1a50929d27aa027.zip
op-kernel-dev-e57484343898094bb8f72a2aa1a50929d27aa027.tar.gz
f2fs: add a tracepoint for f2fs_write_{meta,node,data}_pages
This patch adds a tracepoint for f2fs_write_{meta,node,data}_pages to trace when pages are fsyncing/flushing. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/checkpoint.c2
-rw-r--r--fs/f2fs/data.c2
-rw-r--r--fs/f2fs/node.c2
3 files changed, 6 insertions, 0 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index c95d622..fe968c7 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -186,6 +186,8 @@ static int f2fs_write_meta_pages(struct address_space *mapping,
struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
long diff, written;
+ trace_f2fs_writepages(mapping->host, wbc, META);
+
/* collect a number of dirty meta pages and write together */
if (wbc->for_kupdate ||
get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META))
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b997d55..21bfafa 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -860,6 +860,8 @@ static int f2fs_write_data_pages(struct address_space *mapping,
int ret;
long diff;
+ trace_f2fs_writepages(mapping->host, wbc, DATA);
+
/* deal with chardevs and other special file */
if (!mapping->a_ops->writepage)
return 0;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 49bdddb..3d60d3d 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1242,6 +1242,8 @@ static int f2fs_write_node_pages(struct address_space *mapping,
struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
long diff;
+ trace_f2fs_writepages(mapping->host, wbc, NODE);
+
/* balancing f2fs's metadata in background */
f2fs_balance_fs_bg(sbi);
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