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authorNamjae Jeon <namjae.jeon@samsung.com>2013-04-20 01:28:40 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-04-23 15:30:27 +0900
commita2a4a7e4abb27c833d4e09ac1d434ab48a64062c (patch)
treed23f6c9419d72e66f24c2094d79a43d6e17a6cb9 /fs/f2fs/inode.c
parente66509f03e36ef4750bfab8f3a5cf632b313a39b (diff)
downloadop-kernel-dev-a2a4a7e4abb27c833d4e09ac1d434ab48a64062c.zip
op-kernel-dev-a2a4a7e4abb27c833d4e09ac1d434ab48a64062c.tar.gz
f2fs: add tracepoints for sync & inode operations
Add tracepoints in f2fs for tracing the syncing operations like filesystem sync, file sync enter/exit. It will helf to trace the code under debugging scenarios. Also add tracepoints for tracing the various inode operations like building inode, eviction of inode, link/unlike of inodes. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> [Jaegeuk: combine and modify the tracepoint structures] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/inode.c')
-rw-r--r--fs/f2fs/inode.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 60105b7..91ac7f9 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -16,6 +16,8 @@
#include "f2fs.h"
#include "node.h"
+#include <trace/events/f2fs.h>
+
void f2fs_set_inode_flags(struct inode *inode)
{
unsigned int flags = F2FS_I(inode)->i_flags;
@@ -91,13 +93,16 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
- int ret;
+ int ret = 0;
inode = iget_locked(sb, ino);
if (!inode)
return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW))
+
+ if (!(inode->i_state & I_NEW)) {
+ trace_f2fs_iget(inode);
return inode;
+ }
if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
goto make_now;
@@ -139,11 +144,12 @@ make_now:
goto bad_inode;
}
unlock_new_inode(inode);
-
+ trace_f2fs_iget(inode);
return inode;
bad_inode:
iget_failed(inode);
+ trace_f2fs_iget_exit(inode, ret);
return ERR_PTR(ret);
}
@@ -239,6 +245,7 @@ void f2fs_evict_inode(struct inode *inode)
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
int ilock;
+ trace_f2fs_evict_inode(inode);
truncate_inode_pages(&inode->i_data, 0);
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
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