From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB7AFC433E0 for ; Tue, 30 Jun 2020 10:05:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA1772081A for ; Tue, 30 Jun 2020 10:05:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732193AbgF3KFA (ORCPT ); Tue, 30 Jun 2020 06:05:00 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:55334 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732078AbgF3KEw (ORCPT ); Tue, 30 Jun 2020 06:04:52 -0400 Received: from DGGEMS411-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 6C165951A27B524D3737; Tue, 30 Jun 2020 18:04:47 +0800 (CST) Received: from szvp000203569.huawei.com (10.120.216.130) by DGGEMS411-HUB.china.huawei.com (10.3.19.211) with Microsoft SMTP Server id 14.3.487.0; Tue, 30 Jun 2020 18:04:36 +0800 From: Chao Yu To: CC: , , , Chao Yu Subject: [PATCH RFC 3/5] f2fs: inherit mtime of original block during GC Date: Tue, 30 Jun 2020 18:04:26 +0800 Message-ID: <20200630100428.19105-3-yuchao0@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200630100428.19105-1-yuchao0@huawei.com> References: <20200630100428.19105-1-yuchao0@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.120.216.130] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Don't let f2fs inner GC ruins original aging degree of segment. Signed-off-by: Chao Yu --- fs/f2fs/data.c | 2 +- fs/f2fs/f2fs.h | 5 +++-- fs/f2fs/gc.c | 4 ++-- fs/f2fs/segment.c | 55 ++++++++++++++++++++++++++++++++++++----------- 4 files changed, 49 insertions(+), 17 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index d742f38b1445..062d585fa080 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1366,7 +1366,7 @@ static int __allocate_data_block(struct dnode_of_data *dn, int seg_type) set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version); old_blkaddr = dn->data_blkaddr; f2fs_allocate_data_block(sbi, NULL, old_blkaddr, &dn->data_blkaddr, - &sum, seg_type, NULL); + &sum, seg_type, NULL, false); if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) invalidate_mapping_pages(META_MAPPING(sbi), old_blkaddr, old_blkaddr); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index f06c77066284..a90702a725b6 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3383,7 +3383,8 @@ void f2fs_outplace_write_data(struct dnode_of_data *dn, int f2fs_inplace_write_data(struct f2fs_io_info *fio); void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, block_t old_blkaddr, block_t new_blkaddr, - bool recover_curseg, bool recover_newaddr); + bool recover_curseg, bool recover_newaddr, + bool from_gc); void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, block_t old_addr, block_t new_addr, unsigned char version, bool recover_curseg, @@ -3391,7 +3392,7 @@ void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, block_t old_blkaddr, block_t *new_blkaddr, struct f2fs_summary *sum, int type, - struct f2fs_io_info *fio); + struct f2fs_io_info *fio, bool from_gc); void f2fs_wait_on_page_writeback(struct page *page, enum page_type type, bool ordered, bool locked); void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 84807abe4e00..e720886ef9bf 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -875,7 +875,7 @@ static int move_data_block(struct inode *inode, block_t bidx, } f2fs_allocate_data_block(fio.sbi, NULL, fio.old_blkaddr, &newaddr, - &sum, CURSEG_COLD_DATA, NULL); + &sum, CURSEG_COLD_DATA, NULL, true); fio.encrypted_page = f2fs_pagecache_get_page(META_MAPPING(fio.sbi), newaddr, FGP_LOCK | FGP_CREAT, GFP_NOFS); @@ -925,7 +925,7 @@ static int move_data_block(struct inode *inode, block_t bidx, recover_block: if (err) f2fs_do_replace_block(fio.sbi, &sum, newaddr, fio.old_blkaddr, - true, true); + true, true, true); up_out: if (lfs_mode) up_write(&fio.sbi->io_order_lock); diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 906c313835ad..0fde06b904c5 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -2149,12 +2149,28 @@ static void __set_sit_entry_type(struct f2fs_sb_info *sbi, int type, if (modified) __mark_sit_entry_dirty(sbi, segno); } +static inline unsigned long long get_segment_mtime(struct f2fs_sb_info *sbi, + block_t blkaddr) +{ + unsigned int segno = GET_SEGNO(sbi, blkaddr); + + if (segno == NULL_SEGNO) + return 0; + return get_seg_entry(sbi, segno)->mtime; +} -static void update_segment_mtime(struct f2fs_sb_info *sbi, block_t blkaddr) +static void update_segment_mtime(struct f2fs_sb_info *sbi, block_t blkaddr, + unsigned long long old_mtime) { + struct seg_entry *se; unsigned int segno = GET_SEGNO(sbi, blkaddr); - struct seg_entry *se = get_seg_entry(sbi, segno); - unsigned long long mtime = get_mtime(sbi, false); + unsigned long long ctime = get_mtime(sbi, false); + unsigned long long mtime = old_mtime ? old_mtime : ctime; + + if (segno == NULL_SEGNO) + return; + + se = get_seg_entry(sbi, segno); if (!se->mtime) { se->mtime = mtime; @@ -2162,8 +2178,8 @@ static void update_segment_mtime(struct f2fs_sb_info *sbi, block_t blkaddr) se->mtime = (se->mtime * se->valid_blocks + mtime) / (se->valid_blocks + 1); } - if (mtime > SIT_I(sbi)->max_mtime) - SIT_I(sbi)->max_mtime = mtime; + if (ctime > SIT_I(sbi)->max_mtime) + SIT_I(sbi)->max_mtime = ctime; } static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del) @@ -2185,8 +2201,6 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del) f2fs_bug_on(sbi, (new_vblocks >> (sizeof(unsigned short) << 3) || (new_vblocks > sbi->blocks_per_seg))); - update_segment_mtime(sbi, blkaddr); - se->valid_blocks = new_vblocks; /* Update valid block bitmap */ @@ -2280,6 +2294,7 @@ void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr) /* add it into sit main buffer */ down_write(&sit_i->sentry_lock); + update_segment_mtime(sbi, addr, 0); update_sit_entry(sbi, addr, -1); /* add it into dirty seglist */ @@ -3188,10 +3203,11 @@ static int __get_segment_type(struct f2fs_io_info *fio) void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, block_t old_blkaddr, block_t *new_blkaddr, struct f2fs_summary *sum, int type, - struct f2fs_io_info *fio) + struct f2fs_io_info *fio, bool from_gc) { struct sit_info *sit_i = SIT_I(sbi); struct curseg_info *curseg = CURSEG_I(sbi, type); + unsigned long long old_mtime; down_read(&SM_I(sbi)->curseg_lock); @@ -3213,6 +3229,14 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, stat_inc_block_count(sbi, curseg); + if (from_gc) { + old_mtime = get_segment_mtime(sbi, old_blkaddr); + } else { + update_segment_mtime(sbi, old_blkaddr, 0); + old_mtime = 0; + } + update_segment_mtime(sbi, *new_blkaddr, old_mtime); + /* * SIT information should be updated before segment allocation, * since SSR needs latest valid block information. @@ -3289,7 +3313,8 @@ static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio) down_read(&fio->sbi->io_order_lock); reallocate: f2fs_allocate_data_block(fio->sbi, fio->page, fio->old_blkaddr, - &fio->new_blkaddr, sum, type, fio); + &fio->new_blkaddr, sum, type, fio, + is_cold_data(fio->page)); if (GET_SEGNO(fio->sbi, fio->old_blkaddr) != NULL_SEGNO) invalidate_mapping_pages(META_MAPPING(fio->sbi), fio->old_blkaddr, fio->old_blkaddr); @@ -3405,7 +3430,8 @@ static inline int __f2fs_get_curseg(struct f2fs_sb_info *sbi, void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, block_t old_blkaddr, block_t new_blkaddr, - bool recover_curseg, bool recover_newaddr) + bool recover_curseg, bool recover_newaddr, + bool from_gc) { struct sit_info *sit_i = SIT_I(sbi); struct curseg_info *curseg; @@ -3456,11 +3482,16 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr); __add_sum_entry(sbi, type, sum); - if (!recover_curseg || recover_newaddr) + if (!recover_curseg || recover_newaddr) { + if (!from_gc) + update_segment_mtime(sbi, new_blkaddr, 0); update_sit_entry(sbi, new_blkaddr, 1); + } if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) { invalidate_mapping_pages(META_MAPPING(sbi), old_blkaddr, old_blkaddr); + if (!from_gc) + update_segment_mtime(sbi, old_blkaddr, 0); update_sit_entry(sbi, old_blkaddr, -1); } @@ -3492,7 +3523,7 @@ void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, set_summary(&sum, dn->nid, dn->ofs_in_node, version); f2fs_do_replace_block(sbi, &sum, old_addr, new_addr, - recover_curseg, recover_newaddr); + recover_curseg, recover_newaddr, false); f2fs_update_data_blkaddr(dn, new_addr); } -- 2.26.2