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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-01-20 23:43:51 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-02-22 16:07:23 -0800 |
| commit | fec1d6576cdf2ce13f84fcdf7b20d02a05f76fc6 (patch) | |
| tree | a413bdb72037dedf3bace051d93683591690cd5b /fs/f2fs/segment.c | |
| parent | 718e53fa633f84d09acb4b76f1ad572ccbf75a12 (diff) | |
| download | linux-fec1d6576cdf2ce13f84fcdf7b20d02a05f76fc6.tar.bz2 | |
f2fs: use wait_for_stable_page to avoid contention
In write_begin, if storage supports stable_page, we don't need to wait for
writeback to update its contents.
This patch introduces to use wait_for_stable_page instead of
wait_on_page_writeback.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 9e3276067526..7cd07d54be4e 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -223,7 +223,8 @@ int commit_inmem_pages(struct inode *inode, bool abort) if (!abort) { if (cur->page->mapping == inode->i_mapping) { set_page_dirty(cur->page); - f2fs_wait_on_page_writeback(cur->page, DATA); + f2fs_wait_on_page_writeback(cur->page, DATA, + true); if (clear_page_dirty_for_io(cur->page)) inode_dec_dirty_pages(inode); trace_f2fs_commit_inmem_page(cur->page, INMEM); @@ -1416,14 +1417,17 @@ void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, } void f2fs_wait_on_page_writeback(struct page *page, - enum page_type type) + enum page_type type, bool ordered) { if (PageWriteback(page)) { struct f2fs_sb_info *sbi = F2FS_P_SB(page); if (is_merged_page(sbi, page, type)) f2fs_submit_merged_bio(sbi, type, WRITE); - wait_on_page_writeback(page); + if (ordered) + wait_on_page_writeback(page); + else + wait_for_stable_page(page); } } @@ -1439,7 +1443,7 @@ void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi, cpage = find_lock_page(META_MAPPING(sbi), blkaddr); if (cpage) { - f2fs_wait_on_page_writeback(cpage, DATA); + f2fs_wait_on_page_writeback(cpage, DATA, true); f2fs_put_page(cpage, 1); } } |