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| author | Chao Yu <yuchao0@huawei.com> | 2019-04-02 18:52:22 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2019-04-16 13:51:32 -0700 |
| commit | 126ce7214d213412bd4a23c731626ee7fe4cb4ec (patch) | |
| tree | 05c024ac1c2dfb3926046922199fccb1a5ffe985 /fs/f2fs | |
| parent | e1074d4b1deb2d26cca5a4aae765939ead91f551 (diff) | |
| download | lwn-126ce7214d213412bd4a23c731626ee7fe4cb4ec.tar.gz lwn-126ce7214d213412bd4a23c731626ee7fe4cb4ec.zip | |
f2fs: add tracepoint for f2fs_file_write_iter()
This patch adds tracepoint for f2fs_file_write_iter().
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/file.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 30d49467578e..abdff1a0ae92 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -3035,15 +3035,21 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) struct inode *inode = file_inode(file); ssize_t ret; - if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) - return -EIO; + if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { + ret = -EIO; + goto out; + } - if ((iocb->ki_flags & IOCB_NOWAIT) && !(iocb->ki_flags & IOCB_DIRECT)) - return -EINVAL; + if ((iocb->ki_flags & IOCB_NOWAIT) && !(iocb->ki_flags & IOCB_DIRECT)) { + ret = -EINVAL; + goto out; + } if (!inode_trylock(inode)) { - if (iocb->ki_flags & IOCB_NOWAIT) - return -EAGAIN; + if (iocb->ki_flags & IOCB_NOWAIT) { + ret = -EAGAIN; + goto out; + } inode_lock(inode); } @@ -3066,7 +3072,8 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) clear_inode_flag(inode, FI_NO_PREALLOC); inode_unlock(inode); - return -EAGAIN; + ret = -EAGAIN; + goto out; } } else { @@ -3077,7 +3084,8 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) if (err) { clear_inode_flag(inode, FI_NO_PREALLOC); inode_unlock(inode); - return err; + ret = err; + goto out; } } ret = __generic_file_write_iter(iocb, from); @@ -3091,7 +3099,9 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret); } inode_unlock(inode); - +out: + trace_f2fs_file_write_iter(inode, iocb->ki_pos, + iov_iter_count(from), ret); if (ret > 0) ret = generic_write_sync(iocb, ret); return ret; |