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| author | Chao Yu <yuchao0@huawei.com> | 2017-08-02 23:21:48 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-08-09 21:43:58 -0700 |
| commit | b0af6d491a6b5f5622fa91ac75f34f3640f862c4 (patch) | |
| tree | d70ceb1814e1f9797566f72242141a698a727907 /fs/f2fs/file.c | |
| parent | 35ee82ca133a58011e648a407d4ab13275c975d4 (diff) | |
| download | linux-b0af6d491a6b5f5622fa91ac75f34f3640f862c4.tar.bz2 | |
f2fs: add app/fs io stat
This patch enables inner app/fs io stats and introduces below virtual fs
nodes for exposing stats info:
/sys/fs/f2fs/<dev>/iostat_enable
/proc/fs/f2fs/<dev>/iostat_info
Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: fix wrong stat assignment]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/file.c')
| -rw-r--r-- | fs/f2fs/file.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 407518f42e45..e2b33b87701f 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -98,6 +98,8 @@ static int f2fs_vm_page_mkwrite(struct vm_fault *vmf) if (!PageUptodate(page)) SetPageUptodate(page); + f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE); + trace_f2fs_vm_page_mkwrite(page, DATA); mapped: /* fill the page */ @@ -1815,7 +1817,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg) f2fs_stop_checkpoint(sbi, false); break; case F2FS_GOING_DOWN_METAFLUSH: - sync_meta_pages(sbi, META, LONG_MAX); + sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO); f2fs_stop_checkpoint(sbi, false); break; default: @@ -2694,6 +2696,9 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) ret = __generic_file_write_iter(iocb, from); blk_finish_plug(&plug); clear_inode_flag(inode, FI_NO_PREALLOC); + + if (ret > 0) + f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret); } inode_unlock(inode); |