From: Gao Xiang via Linux-erofs <linux-erofs@lists.ozlabs.org> To: Christoph Hellwig <hch@infradead.org>, Chao Yu <yuchao0@huawei.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-fsdevel@vger.kernel.org, devel@driverdev.osuosl.org, linux-erofs@lists.ozlabs.org Subject: [PATCH 14/21] erofs: kill prio and nofail of erofs_get_meta_page() Date: Sun, 1 Sep 2019 13:51:23 +0800 Message-ID: <20190901055130.30572-15-hsiangkao@aol.com> (raw) In-Reply-To: <20190901055130.30572-1-hsiangkao@aol.com> From: Gao Xiang <gaoxiang25@huawei.com> As Christoph pointed out [1], "Why is there __erofs_get_meta_page with the two weird booleans instead of a single erofs_get_meta_page that gets and gfp_t for additional flags and an unsigned int for additional bio op flags." And since all callers can handle errors, let's kill prio and nofail and erofs_get_inline_page() now. [1] https://lore.kernel.org/lkml/20190830162812.GA10694@infradead.org/ Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Gao Xiang <gaoxiang25@huawei.com> --- fs/erofs/data.c | 24 ++++++------------------ fs/erofs/inode.c | 2 +- fs/erofs/internal.h | 18 +----------------- fs/erofs/xattr.c | 13 ++++++------- fs/erofs/zmap.c | 4 ++-- 5 files changed, 16 insertions(+), 45 deletions(-) diff --git a/fs/erofs/data.c b/fs/erofs/data.c index 621954d4fb09..837b07cd2761 100644 --- a/fs/erofs/data.c +++ b/fs/erofs/data.c @@ -38,25 +38,20 @@ static inline void read_endio(struct bio *bio) bio_put(bio); } -/* prio -- true is used for dir */ -struct page *__erofs_get_meta_page(struct super_block *sb, - erofs_blk_t blkaddr, bool prio, bool nofail) +struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr) { struct inode *const bd_inode = sb->s_bdev->bd_inode; struct address_space *const mapping = bd_inode->i_mapping; /* prefer retrying in the allocator to blindly looping below */ - const gfp_t gfp = mapping_gfp_constraint(mapping, ~__GFP_FS) | - (nofail ? __GFP_NOFAIL : 0); - unsigned int io_retries = nofail ? EROFS_IO_MAX_RETRIES_NOFAIL : 0; + const gfp_t gfp = mapping_gfp_constraint(mapping, ~__GFP_FS); struct page *page; int err; repeat: page = find_or_create_page(mapping, blkaddr, gfp); - if (!page) { - DBG_BUGON(nofail); + if (!page) return ERR_PTR(-ENOMEM); - } + DBG_BUGON(!PageLocked(page)); if (!PageUptodate(page)) { @@ -69,14 +64,11 @@ struct page *__erofs_get_meta_page(struct super_block *sb, goto err_out; } - __submit_bio(bio, REQ_OP_READ, - REQ_META | (prio ? REQ_PRIO : 0)); - + __submit_bio(bio, REQ_OP_READ, REQ_META); lock_page(page); /* this page has been truncated by others */ if (page->mapping != mapping) { -unlock_repeat: unlock_page(page); put_page(page); goto repeat; @@ -84,10 +76,6 @@ struct page *__erofs_get_meta_page(struct super_block *sb, /* more likely a read error */ if (!PageUptodate(page)) { - if (io_retries) { - --io_retries; - goto unlock_repeat; - } err = -EIO; goto err_out; } @@ -237,7 +225,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio, DBG_BUGON(map.m_plen > PAGE_SIZE); - ipage = erofs_get_meta_page(inode->i_sb, blknr, 0); + ipage = erofs_get_meta_page(inode->i_sb, blknr); if (IS_ERR(ipage)) { err = PTR_ERR(ipage); diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c index d501ceb62c29..19a574ee690b 100644 --- a/fs/erofs/inode.c +++ b/fs/erofs/inode.c @@ -163,7 +163,7 @@ static int fill_inode(struct inode *inode, int isdir) debugln("%s, reading inode nid %llu at %u of blkaddr %u", __func__, vi->nid, ofs, blkaddr); - page = erofs_get_meta_page(inode->i_sb, blkaddr, isdir); + page = erofs_get_meta_page(inode->i_sb, blkaddr); if (IS_ERR(page)) { errln("failed to get inode (nid: %llu) page, err %ld", diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 01749be24f3d..40d4dd47bb7a 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -258,8 +258,6 @@ static inline int erofs_wait_on_workgroup_freezed(struct erofs_workgroup *grp) #error erofs cannot be used in this platform #endif -#define EROFS_IO_MAX_RETRIES_NOFAIL 5 - #define ROOT_NID(sb) ((sb)->root_nid) #define erofs_blknr(addr) ((addr) / EROFS_BLKSIZ) @@ -428,24 +426,10 @@ static inline void __submit_bio(struct bio *bio, unsigned int op, submit_bio(bio); } -struct page *__erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr, - bool prio, bool nofail); - -static inline struct page *erofs_get_meta_page(struct super_block *sb, - erofs_blk_t blkaddr, bool prio) -{ - return __erofs_get_meta_page(sb, blkaddr, prio, false); -} +struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr); int erofs_map_blocks(struct inode *, struct erofs_map_blocks *, int); -static inline struct page *erofs_get_inline_page(struct inode *inode, - erofs_blk_t blkaddr) -{ - return erofs_get_meta_page(inode->i_sb, blkaddr, - S_ISDIR(inode->i_mode)); -} - /* inode.c */ static inline unsigned long erofs_inode_hash(erofs_nid_t nid) { diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c index d5b7fe0bee45..dd445c81c41f 100644 --- a/fs/erofs/xattr.c +++ b/fs/erofs/xattr.c @@ -87,7 +87,7 @@ static int init_inode_xattrs(struct inode *inode) it.blkaddr = erofs_blknr(iloc(sbi, vi->nid) + vi->inode_isize); it.ofs = erofs_blkoff(iloc(sbi, vi->nid) + vi->inode_isize); - it.page = erofs_get_inline_page(inode, it.blkaddr); + it.page = erofs_get_meta_page(sb, it.blkaddr); if (IS_ERR(it.page)) { ret = PTR_ERR(it.page); goto out_unlock; @@ -117,8 +117,7 @@ static int init_inode_xattrs(struct inode *inode) DBG_BUGON(it.ofs != EROFS_BLKSIZ); xattr_iter_end(&it, atomic_map); - it.page = erofs_get_meta_page(sb, ++it.blkaddr, - S_ISDIR(inode->i_mode)); + it.page = erofs_get_meta_page(sb, ++it.blkaddr); if (IS_ERR(it.page)) { kfree(vi->xattr_shared_xattrs); vi->xattr_shared_xattrs = NULL; @@ -168,7 +167,7 @@ static inline int xattr_iter_fixup(struct xattr_iter *it) it->blkaddr += erofs_blknr(it->ofs); - it->page = erofs_get_meta_page(it->sb, it->blkaddr, false); + it->page = erofs_get_meta_page(it->sb, it->blkaddr); if (IS_ERR(it->page)) { int err = PTR_ERR(it->page); @@ -199,7 +198,7 @@ static int inline_xattr_iter_begin(struct xattr_iter *it, it->blkaddr = erofs_blknr(iloc(sbi, vi->nid) + inline_xattr_ofs); it->ofs = erofs_blkoff(iloc(sbi, vi->nid) + inline_xattr_ofs); - it->page = erofs_get_inline_page(inode, it->blkaddr); + it->page = erofs_get_meta_page(inode->i_sb, it->blkaddr); if (IS_ERR(it->page)) return PTR_ERR(it->page); @@ -401,7 +400,7 @@ static int shared_getxattr(struct inode *inode, struct getxattr_iter *it) if (i) xattr_iter_end(&it->it, true); - it->it.page = erofs_get_meta_page(sb, blkaddr, false); + it->it.page = erofs_get_meta_page(sb, blkaddr); if (IS_ERR(it->it.page)) return PTR_ERR(it->it.page); @@ -623,7 +622,7 @@ static int shared_listxattr(struct listxattr_iter *it) if (i) xattr_iter_end(&it->it, true); - it->it.page = erofs_get_meta_page(sb, blkaddr, false); + it->it.page = erofs_get_meta_page(sb, blkaddr); if (IS_ERR(it->it.page)) return PTR_ERR(it->it.page); diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c index c2dd778ebdd3..fbf6591f69a6 100644 --- a/fs/erofs/zmap.c +++ b/fs/erofs/zmap.c @@ -50,7 +50,7 @@ static int fill_inode_lazy(struct inode *inode) pos = ALIGN(iloc(EROFS_SB(sb), vi->nid) + vi->inode_isize + vi->xattr_isize, 8); - page = erofs_get_meta_page(sb, erofs_blknr(pos), false); + page = erofs_get_meta_page(sb, erofs_blknr(pos)); if (IS_ERR(page)) { err = PTR_ERR(page); goto out_unlock; @@ -127,7 +127,7 @@ static int z_erofs_reload_indexes(struct z_erofs_maprecorder *m, put_page(mpage); } - mpage = erofs_get_meta_page(sb, eblk, false); + mpage = erofs_get_meta_page(sb, eblk); if (IS_ERR(mpage)) { map->mpage = NULL; return PTR_ERR(mpage); -- 2.17.1
next prev parent reply index Thread overview: 159+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-02 12:53 [PATCH v6 00/24] erofs: promote erofs from staging Gao Xiang 2019-08-02 12:53 ` [PATCH v6 01/24] erofs: add on-disk layout Gao Xiang 2019-08-29 9:59 ` Christoph Hellwig 2019-08-29 10:32 ` Gao Xiang 2019-08-29 10:36 ` Christoph Hellwig 2019-08-29 10:58 ` Gao Xiang 2019-08-29 15:58 ` Joe Perches 2019-08-29 17:26 ` Gao Xiang 2019-08-30 12:07 ` David Sterba 2019-08-30 12:18 ` Gao Xiang via Linux-erofs 2019-09-02 8:43 ` Pavel Machek 2019-09-02 14:07 ` David Sterba 2019-09-03 11:27 ` Pavel Machek 2019-08-29 15:41 ` Gao Xiang 2019-09-01 7:54 ` Gao Xiang via Linux-erofs 2019-09-02 12:45 ` Christoph Hellwig 2019-09-02 13:02 ` Gao Xiang 2019-09-02 8:40 ` Pavel Machek 2019-09-02 10:35 ` Gao Xiang 2019-08-02 12:53 ` [PATCH v6 02/24] erofs: add erofs in-memory stuffs Gao Xiang 2019-08-02 12:53 ` [PATCH v6 03/24] erofs: add super block operations Gao Xiang 2019-08-29 10:15 ` Christoph Hellwig 2019-08-29 10:50 ` Gao Xiang 2019-08-30 16:39 ` Christoph Hellwig 2019-08-30 17:15 ` Gao Xiang 2019-08-31 0:54 ` Gao Xiang 2019-08-31 6:34 ` Amir Goldstein 2019-08-31 6:48 ` Gao Xiang 2019-09-01 8:54 ` Gao Xiang via Linux-erofs 2019-09-02 12:51 ` Christoph Hellwig 2019-09-02 14:43 ` Gao Xiang 2019-09-02 15:19 ` Christoph Hellwig 2019-09-02 15:24 ` Gao Xiang 2019-08-02 12:53 ` [PATCH v6 04/24] erofs: add raw address_space operations Gao Xiang 2019-08-29 10:17 ` Christoph Hellwig 2019-08-29 11:46 ` Gao Xiang 2019-08-30 16:40 ` Christoph Hellwig 2019-08-30 17:23 ` Gao Xiang 2019-08-02 12:53 ` [PATCH v6 05/24] erofs: add inode operations Gao Xiang 2019-08-29 10:24 ` Christoph Hellwig 2019-08-29 11:59 ` Gao Xiang 2019-08-30 16:42 ` Christoph Hellwig 2019-08-30 18:46 ` Gao Xiang 2019-09-01 9:34 ` Gao Xiang via Linux-erofs 2019-09-02 12:53 ` Christoph Hellwig 2019-09-02 13:43 ` David Sterba 2019-09-02 13:55 ` Gao Xiang 2019-08-02 12:53 ` [PATCH v6 06/24] erofs: support special inode Gao Xiang 2019-08-29 10:25 ` Christoph Hellwig 2019-09-01 9:39 ` Gao Xiang via Linux-erofs 2019-08-02 12:53 ` [PATCH v6 07/24] erofs: add directory operations Gao Xiang 2019-08-02 12:53 ` [PATCH v6 08/24] erofs: add namei functions Gao Xiang 2019-08-29 10:28 ` Christoph Hellwig 2019-08-29 11:28 ` Gao Xiang 2019-08-02 12:53 ` [PATCH v6 09/24] erofs: support tracepoint Gao Xiang 2019-08-02 12:53 ` [PATCH v6 10/24] erofs: update Kconfig and Makefile Gao Xiang 2019-08-02 12:53 ` [PATCH v6 11/24] erofs: introduce xattr & posixacl support Gao Xiang 2019-08-02 12:53 ` [PATCH v6 12/24] erofs: introduce tagged pointer Gao Xiang 2019-08-02 12:53 ` [PATCH v6 13/24] erofs: add compression indexes support Gao Xiang 2019-08-02 12:53 ` [PATCH v6 14/24] erofs: introduce superblock registration Gao Xiang 2019-08-02 12:53 ` [PATCH v6 15/24] erofs: introduce erofs shrinker Gao Xiang 2019-08-02 12:53 ` [PATCH v6 16/24] erofs: introduce workstation for decompression Gao Xiang 2019-08-02 12:53 ` [PATCH v6 17/24] erofs: introduce per-CPU buffers implementation Gao Xiang 2019-08-02 12:53 ` [PATCH v6 18/24] erofs: introduce pagevec for decompression subsystem Gao Xiang 2019-08-02 12:53 ` [PATCH v6 19/24] erofs: add erofs_allocpage() Gao Xiang 2019-08-02 12:53 ` [PATCH v6 20/24] erofs: introduce generic decompression backend Gao Xiang 2019-08-02 12:53 ` [PATCH v6 21/24] erofs: introduce LZ4 decompression inplace Gao Xiang 2019-08-02 12:53 ` [PATCH v6 22/24] erofs: introduce the decompression frontend Gao Xiang 2019-08-02 12:53 ` [PATCH v6 23/24] erofs: introduce cached decompression Gao Xiang 2019-08-02 12:53 ` [PATCH v6 24/24] erofs: add document Gao Xiang 2019-09-01 5:51 ` [PATCH 00/21] erofs: patchset addressing Christoph's comments Gao Xiang via Linux-erofs 2019-09-01 5:51 ` [PATCH 01/21] erofs: remove all the byte offset comments Gao Xiang via Linux-erofs 2019-09-02 12:05 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 02/21] erofs: on-disk format should have explicitly assigned numbers Gao Xiang via Linux-erofs 2019-09-02 12:05 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 03/21] erofs: some macros are much more readable as a function Gao Xiang via Linux-erofs 2019-09-02 12:06 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 04/21] erofs: kill __packed for on-disk structures Gao Xiang via Linux-erofs 2019-09-02 12:06 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 05/21] erofs: update erofs_inode_is_data_compressed helper Gao Xiang via Linux-erofs 2019-09-02 12:07 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 06/21] erofs: kill erofs_{init,exit}_inode_cache Gao Xiang via Linux-erofs 2019-09-02 12:09 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 07/21] erofs: use erofs_inode naming Gao Xiang via Linux-erofs 2019-09-02 12:10 ` Christoph Hellwig 2019-09-02 12:13 ` Gao Xiang 2019-09-02 12:47 ` Christoph Hellwig 2019-09-02 13:33 ` Gao Xiang 2019-09-01 5:51 ` [PATCH 08/21] erofs: update comments in inode.c Gao Xiang via Linux-erofs 2019-09-01 5:51 ` [PATCH 09/21] erofs: update erofs symlink stuffs Gao Xiang via Linux-erofs 2019-09-02 12:11 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 10/21] erofs: kill is_inode_layout_compression() Gao Xiang via Linux-erofs 2019-09-02 12:11 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 11/21] erofs: use dsb instead of layout for ondisk super_block Gao Xiang via Linux-erofs 2019-09-02 12:12 ` Christoph Hellwig 2019-09-02 12:15 ` Gao Xiang 2019-09-01 5:51 ` [PATCH 12/21] erofs: kill verbose debug info in erofs_fill_super Gao Xiang via Linux-erofs 2019-09-02 12:14 ` Christoph Hellwig 2019-09-02 12:18 ` Gao Xiang 2019-09-01 5:51 ` [PATCH 13/21] erofs: simplify erofs_grab_bio() since bio_alloc() never fail Gao Xiang via Linux-erofs 2019-09-02 12:20 ` Christoph Hellwig 2019-09-01 5:51 ` Gao Xiang via Linux-erofs [this message] 2019-09-02 12:21 ` [PATCH 14/21] erofs: kill prio and nofail of erofs_get_meta_page() Christoph Hellwig 2019-09-01 5:51 ` [PATCH 15/21] erofs: kill __submit_bio() Gao Xiang via Linux-erofs 2019-09-01 5:51 ` [PATCH 16/21] erofs: kill magic underscores Gao Xiang via Linux-erofs 2019-09-02 12:26 ` Christoph Hellwig 2019-09-02 12:39 ` Gao Xiang 2019-09-02 12:54 ` Christoph Hellwig 2019-09-02 13:38 ` Gao Xiang 2019-09-01 5:51 ` [PATCH 17/21] erofs: use a switch statement when dealing with the file modes Gao Xiang via Linux-erofs 2019-09-02 12:27 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 18/21] erofs: add "erofs_" prefix for common and short functions Gao Xiang via Linux-erofs 2019-09-02 12:28 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 19/21] erofs: kill all erofs specific fault injection Gao Xiang via Linux-erofs 2019-09-02 12:28 ` Christoph Hellwig 2019-09-01 5:51 ` [PATCH 20/21] erofs: kill use_vmap module parameter Gao Xiang via Linux-erofs 2019-09-02 12:31 ` Christoph Hellwig 2019-09-02 12:43 ` Gao Xiang 2019-09-01 5:51 ` [PATCH 21/21] erofs: save one level of indentation Gao Xiang via Linux-erofs 2019-09-02 12:31 ` Christoph Hellwig 2019-09-02 12:46 ` [PATCH 00/21] erofs: patchset addressing Christoph's comments Christoph Hellwig 2019-09-02 14:24 ` Gao Xiang 2019-09-02 15:23 ` Christoph Hellwig 2019-09-02 15:50 ` Gao Xiang 2019-09-03 6:58 ` Christoph Hellwig 2019-09-03 8:17 ` Gao Xiang 2019-09-03 15:37 ` Christoph Hellwig 2019-09-03 15:43 ` Gao Xiang via Linux-erofs 2019-09-04 2:08 ` [PATCH v2 00/25] " Gao Xiang 2019-09-04 2:08 ` [PATCH v2 01/25] erofs: remove all the byte offset comments Gao Xiang 2019-09-04 2:08 ` [PATCH v2 02/25] erofs: on-disk format should have explicitly assigned numbers Gao Xiang 2019-09-04 2:08 ` [PATCH v2 03/25] erofs: some macros are much more readable as a function Gao Xiang 2019-09-04 2:08 ` [PATCH v2 04/25] erofs: kill __packed for on-disk structures Gao Xiang 2019-09-04 2:08 ` [PATCH v2 05/25] erofs: update erofs_inode_is_data_compressed helper Gao Xiang 2019-09-04 2:08 ` [PATCH v2 06/25] erofs: use feature_incompat rather than requirements Gao Xiang 2019-09-04 2:08 ` [PATCH v2 07/25] erofs: better naming for erofs inode related stuffs Gao Xiang 2019-09-04 2:08 ` [PATCH v2 08/25] erofs: kill erofs_{init,exit}_inode_cache Gao Xiang 2019-09-04 2:08 ` [PATCH v2 09/25] erofs: use erofs_inode naming Gao Xiang 2019-09-04 2:08 ` [PATCH v2 10/25] erofs: update erofs_fs.h comments Gao Xiang 2019-09-04 2:08 ` [PATCH v2 11/25] erofs: update comments in inode.c Gao Xiang 2019-09-04 2:08 ` [PATCH v2 12/25] erofs: better erofs symlink stuffs Gao Xiang 2019-09-04 2:09 ` [PATCH v2 13/25] erofs: use dsb instead of layout for ondisk super_block Gao Xiang 2019-09-04 2:09 ` [PATCH v2 14/25] erofs: kill verbose debug info in erofs_fill_super Gao Xiang 2019-09-04 2:09 ` [PATCH v2 15/25] erofs: localize erofs_grab_bio() Gao Xiang 2019-09-04 2:09 ` [PATCH v2 16/25] erofs: kill prio and nofail of erofs_get_meta_page() Gao Xiang 2019-09-04 2:09 ` [PATCH v2 17/25] erofs: kill __submit_bio() Gao Xiang 2019-09-04 2:09 ` [PATCH v2 18/25] erofs: add "erofs_" prefix for common and short functions Gao Xiang 2019-09-04 2:09 ` [PATCH v2 19/25] erofs: kill all erofs specific fault injection Gao Xiang 2019-09-04 2:09 ` [PATCH v2 20/25] erofs: kill use_vmap module parameter Gao Xiang 2019-09-04 2:09 ` [PATCH v2 21/25] erofs: save one level of indentation Gao Xiang 2019-09-04 2:09 ` [PATCH v2 22/25] erofs: rename errln/infoln/debugln to erofs_{err, info, dbg} Gao Xiang 2019-09-04 2:09 ` [PATCH v2 23/25] erofs: use read_mapping_page instead of sb_bread Gao Xiang 2019-09-04 2:09 ` [PATCH v2 24/25] erofs: always use iget5_locked Gao Xiang 2019-09-04 2:09 ` [PATCH v2 25/25] erofs: use read_cache_page_gfp for erofs_get_meta_page Gao Xiang 2019-09-04 3:27 ` [PATCH v2 00/25] erofs: patchset addressing Christoph's comments Chao Yu 2019-09-05 1:03 ` Gao Xiang via Linux-erofs 2019-09-05 11:30 ` Christoph Hellwig 2019-09-04 5:16 ` Christoph Hellwig 2019-09-04 6:08 ` Gao Xiang via Linux-erofs
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