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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-03-18 03:58:08 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-04-11 01:08:47 +0300 |
| commit | 8ce67cb07dbf6ba35aea1e07e8ad1ea004ced27b (patch) | |
| tree | 519839e12edf66b3341cbb0679f3b25bafba6123 /fs/f2fs | |
| parent | 3c6c2bebef79999b1827041696dc1881e637e3af (diff) | |
| download | linux-8ce67cb07dbf6ba35aea1e07e8ad1ea004ced27b.tar.xz | |
f2fs: add some tracepoints to debug volatile and atomic writes
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/data.c | 2 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 4 | ||||
| -rw-r--r-- | fs/f2fs/segment.c | 4 |
3 files changed, 10 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 486113db97b1..241b98741df9 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1287,9 +1287,11 @@ int do_write_data_page(struct page *page, struct f2fs_io_info *fio) need_inplace_update(inode))) { rewrite_data_page(page, fio); set_inode_flag(F2FS_I(inode), FI_UPDATE_WRITE); + trace_f2fs_do_write_data_page(page, IPU); } else { write_data_page(page, &dn, fio); f2fs_update_extent_cache(&dn); + trace_f2fs_do_write_data_page(page, OPU); set_inode_flag(F2FS_I(inode), FI_APPEND_WRITE); if (page->index == 0) set_inode_flag(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9e378179ff93..c9818193e15e 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -556,6 +556,10 @@ enum page_type { META, NR_PAGE_TYPE, META_FLUSH, + INMEM, /* the below types are used by tracepoints only. */ + INMEM_DROP, + IPU, + OPU, }; struct f2fs_io_info { diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index eafaf728236b..f939660941bb 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -205,6 +205,8 @@ retry: list_add_tail(&new->list, &fi->inmem_pages); inc_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES); mutex_unlock(&fi->inmem_lock); + + trace_f2fs_register_inmem_page(page, INMEM); } void commit_inmem_pages(struct inode *inode, bool abort) @@ -238,11 +240,13 @@ void commit_inmem_pages(struct inode *inode, bool abort) f2fs_wait_on_page_writeback(cur->page, DATA); if (clear_page_dirty_for_io(cur->page)) inode_dec_dirty_pages(inode); + trace_f2fs_commit_inmem_page(cur->page, INMEM); do_write_data_page(cur->page, &fio); submit_bio = true; } f2fs_put_page(cur->page, 1); } else { + trace_f2fs_commit_inmem_page(cur->page, INMEM_DROP); put_page(cur->page); } radix_tree_delete(&fi->inmem_root, cur->page->index); |