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| author |   Namjae Jeon <namjae.jeon@samsung.com> | 2013-04-20 01:28:40 +0900 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-04-23 15:30:27 +0900 |
| commit | a2a4a7e4abb27c833d4e09ac1d434ab48a64062c (patch) | |
| tree | d23f6c9419d72e66f24c2094d79a43d6e17a6cb9 /fs/f2fs/inode.c | |
| parent | f2fs: make is_multimedia_file code align with its name (diff) | |
| download | wireguard-linux-a2a4a7e4abb27c833d4e09ac1d434ab48a64062c.tar.xz wireguard-linux-a2a4a7e4abb27c833d4e09ac1d434ab48a64062c.zip | |
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.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 60105b710958..91ac7f9d88ee 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) || |