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>
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 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 @@
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 @@
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) ||
