diff options
| author | Chao Yu | 2017-08-02 23:21:48 +0800 |
|---|---|---|
| committer | Jaegeuk Kim | 2017-08-09 21:43:58 -0700 |
| commit | b0af6d491a6b5f5622fa91ac75f34f3640f862c4 (patch) | |
| tree | d70ceb1814e1f9797566f72242141a698a727907 /fs/f2fs/segment.c | |
| parent | 35ee82ca133a58011e648a407d4ab13275c975d4 (diff) | |
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/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 1675a2dcd599..c6e4a1174f8a 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -292,6 +292,7 @@ static int __commit_inmem_pages(struct inode *inode, .type = DATA, .op = REQ_OP_WRITE, .op_flags = REQ_SYNC | REQ_PRIO, + .io_type = FS_DATA_IO, }; pgoff_t last_idx = ULONG_MAX; int err = 0; @@ -823,6 +824,8 @@ static void __submit_discard_cmd(struct f2fs_sb_info *sbi, submit_bio(bio); list_move_tail(&dc->list, &dcc->wait_list); __check_sit_bitmap(sbi, dc->start, dc->start + dc->len); + + f2fs_update_iostat(sbi, FS_DISCARD, 1); } } else { __remove_discard_cmd(sbi, dc); @@ -2271,7 +2274,8 @@ reallocate: } } -void write_meta_page(struct f2fs_sb_info *sbi, struct page *page) +void write_meta_page(struct f2fs_sb_info *sbi, struct page *page, + enum iostat_type io_type) { struct f2fs_io_info fio = { .sbi = sbi, @@ -2290,6 +2294,8 @@ void write_meta_page(struct f2fs_sb_info *sbi, struct page *page) set_page_writeback(page); f2fs_submit_page_write(&fio); + + f2fs_update_iostat(sbi, io_type, F2FS_BLKSIZE); } void write_node_page(unsigned int nid, struct f2fs_io_info *fio) @@ -2298,6 +2304,8 @@ void write_node_page(unsigned int nid, struct f2fs_io_info *fio) set_summary(&sum, nid, 0, 0); do_write_page(&sum, fio); + + f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE); } void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio) @@ -2311,13 +2319,22 @@ void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio) set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version); do_write_page(&sum, fio); f2fs_update_data_blkaddr(dn, fio->new_blkaddr); + + f2fs_update_iostat(sbi, fio->io_type, F2FS_BLKSIZE); } int rewrite_data_page(struct f2fs_io_info *fio) { + int err; + fio->new_blkaddr = fio->old_blkaddr; stat_inc_inplace_blocks(fio->sbi); - return f2fs_submit_page_bio(fio); + + err = f2fs_submit_page_bio(fio); + + f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE); + + return err; } void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, |