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Daniel Gomez To: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "willy@infradead.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" CC: "gost.dev@samsung.com" , Pankaj Raghav , Daniel Gomez Subject: [PATCH 1/6] filemap: make the folio order calculation shareable Thread-Topic: [PATCH 1/6] filemap: make the folio order calculation shareable Thread-Index: AQHZ57ovaMdf9q/cjECRh1BbWSoXsQ== Date: Fri, 15 Sep 2023 09:51:23 +0000 Message-ID: <20230915095042.1320180-2-da.gomez@samsung.com> In-Reply-To: <20230915095042.1320180-1-da.gomez@samsung.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [106.110.32.103] 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DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Fri, 15 Sep 2023 02:53:29 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777111770150280873 X-GMAIL-MSGID: 1777137319463232834 To make the code that clamps the folio order in the __filemap_get_folio routine reusable to others, move and merge it to the fgf_set_order new subroutine (mapping_size_order), so when mapping the size at a given index, the order calculated is already valid and ready to be used when order is retrieved from fgp_flags with FGF_GET_ORDER. Signed-off-by: Daniel Gomez --- fs/iomap/buffered-io.c | 6 ++++-- include/linux/pagemap.h | 42 ++++++++++++++++++++++++++++++++++++----- mm/filemap.c | 8 -------- 3 files changed, 41 insertions(+), 15 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index ae8673ce08b1..bfd9a22a9464 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -546,12 +546,14 @@ EXPORT_SYMBOL_GPL(iomap_is_partially_uptodate); struct folio *iomap_get_folio(struct iomap_iter *iter, loff_t pos, size_t len) { fgf_t fgp = FGP_WRITEBEGIN | FGP_NOFS; + pgoff_t index = pos >> PAGE_SHIFT; + struct address_space *mapping = iter->inode->i_mapping; if (iter->flags & IOMAP_NOWAIT) fgp |= FGP_NOWAIT; - fgp |= fgf_set_order(len); + fgp |= fgf_set_order(mapping, index, len); - return __filemap_get_folio(iter->inode->i_mapping, pos >> PAGE_SHIFT, + return __filemap_get_folio(mapping, index, fgp, mapping_gfp_mask(iter->inode->i_mapping)); } EXPORT_SYMBOL_GPL(iomap_get_folio); diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 351c3b7f93a1..7af5636eb32a 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -576,6 +576,39 @@ typedef unsigned int __bitwise fgf_t; #define FGP_WRITEBEGIN (FGP_LOCK | FGP_WRITE | FGP_CREAT | FGP_STABLE) +/** + * mapping_size_order - Get maximum folio order for the given file size. + * @mapping: Target address_space. + * @index: The page index. + * @size: The suggested size of the folio to create. + * + * This returns a high order for folios (when supported) based on the file size + * which the mapping currently allows at the given index. The index is relevant + * due to alignment considerations the mapping might have. The returned order + * may be less than the size passed. + * + * Return: The order. + */ +static inline unsigned int mapping_size_order(struct address_space *mapping, + pgoff_t index, size_t size) +{ + unsigned int order = ilog2(size); + + if ((order <= PAGE_SHIFT) || (!mapping_large_folio_support(mapping))) + return 0; + else + order = order - PAGE_SHIFT; + + /* If we're not aligned, allocate a smaller folio */ + if (index & ((1UL << order) - 1)) + order = __ffs(index); + + order = min_t(size_t, order, MAX_PAGECACHE_ORDER); + + /* Order-1 not supported due to THP dependency */ + return (order == 1) ? 0 : order; +} + /** * fgf_set_order - Encode a length in the fgf_t flags. * @size: The suggested size of the folio to create. @@ -587,13 +620,12 @@ typedef unsigned int __bitwise fgf_t; * due to alignment constraints, memory pressure, or the presence of * other folios at nearby indices. */ -static inline fgf_t fgf_set_order(size_t size) +static inline fgf_t fgf_set_order(struct address_space *mapping, pgoff_t index, + size_t size) { - unsigned int shift = ilog2(size); + unsigned int order = mapping_size_order(mapping, index, size); - if (shift <= PAGE_SHIFT) - return 0; - return (__force fgf_t)((shift - PAGE_SHIFT) << 26); + return (__force fgf_t)(order << 26); } void *filemap_get_entry(struct address_space *mapping, pgoff_t index); diff --git a/mm/filemap.c b/mm/filemap.c index 582f5317ff71..e285fffa9bcf 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1917,14 +1917,6 @@ struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index, if (WARN_ON_ONCE(!(fgp_flags & (FGP_LOCK | FGP_FOR_MMAP)))) fgp_flags |= FGP_LOCK; - if (!mapping_large_folio_support(mapping)) - order = 0; - if (order > MAX_PAGECACHE_ORDER) - order = MAX_PAGECACHE_ORDER; - /* If we're not aligned, allocate a smaller folio */ - if (index & ((1UL << order) - 1)) - order = __ffs(index); - do { gfp_t alloc_gfp = gfp; From patchwork Fri Sep 15 09:51:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Gomez X-Patchwork-Id: 140877 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp1436403vqi; Fri, 15 Sep 2023 19:17:19 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEZP6snQspyXpVtREou4ylSwoWkcQ+LFBt08sdIE9A28iqXJ0/DJ5JTOZFTlSHl8I/GSqXq X-Received: by 2002:a05:6358:998a:b0:142:fb18:6d8f with SMTP id j10-20020a056358998a00b00142fb186d8fmr5305547rwb.8.1694830639317; Fri, 15 Sep 2023 19:17:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694830639; cv=none; d=google.com; s=arc-20160816; b=sKLgqFunlmFtJLwOZd7ef9NYIak/LN6pQ21O+mL6bESpHhDrAvtV8S8+JpCuvyxVou MEBZDAkcjpJDzyNpk6w2etSeD6lVY+VLIC+ddw/k6a6Jn+rfZCTiPU8qqoi/ggfKpxa+ apiZTJyoUBWAzGrfqiKSSd9pdob6/xfWoH9Xc9VwWdDIniFJj2fvM/Buc5qJJCY0noB2 NKNRVFnqPOfOPhkoZ8k54QbWY0PBzgF5JDk/5NzHc2TaFI6klY4ZPuu6LZ9NgzhtvNby i55tJY6qYQtL5dhKW4cxZiS3NcQnTYzL/60O6DYp8CQ3gU5+EuodixW7QBC9MQRGqyYf GT+Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:cms-type:mime-version :content-transfer-encoding:content-language:accept-language :in-reply-to:message-id:date:thread-index:thread-topic:subject:cc:to :from:dkim-signature:dkim-filter; bh=pQ5HIMyPnnwhcYJ76rc1mPPc+k+o81B2sKXtPyg4zdw=; fh=uxBAUgUSkBYxjd1CTtcj7MO+vdwExfJsOb4I3IkdCcM=; b=PzkbrUjs+ro0HghCuapskECyFIzPLjMYhteOXeTVvzlU7ynQhhVJ0mvaxsP8vqIu1x vUr+wjGdS8kOkorZSp2CryFmcWJZOnL6FqKQlDQPAWV0qoaOG12bnJ77J4ABqbEnUg2w ZZzkT/NVyeqlzaL4KoImGUKKurvEVx9nUgD5KXeFtmmedz/ZLnnGXxFnxksARwlKchOu /HKoP6JZx6WaZ7142S1bCBbyQS0G2Bj7s6cIQL0c3bWtR9k0x7uSzDAhUrRWzr/PzWNi 3mIVJum/oO7g7LERZKK+HoTIbMbjEicZTrigW1HH3MQswFtT9zv8IB5o0E/9RUBcrwcN w2Kg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=dRnQE4X3; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: from lipwig.vger.email (lipwig.vger.email. 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Daniel Gomez To: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "willy@infradead.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" CC: "gost.dev@samsung.com" , Pankaj Raghav , Daniel Gomez Subject: [PATCH 2/6] shmem: drop BLOCKS_PER_PAGE macro Thread-Topic: [PATCH 2/6] shmem: drop BLOCKS_PER_PAGE macro Thread-Index: AQHZ57owSgjKzHCSYUqzwv9vQRCtyw== Date: Fri, 15 Sep 2023 09:51:24 +0000 Message-ID: <20230915095042.1320180-3-da.gomez@samsung.com> In-Reply-To: <20230915095042.1320180-1-da.gomez@samsung.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [106.110.32.103] MIME-Version: 1.0 X-Brightmail-Tracker: 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autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Fri, 15 Sep 2023 02:55:38 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777158732557649921 X-GMAIL-MSGID: 1777158732557649921 The commit [1] replaced all BLOCKS_PER_PAGE in favor of the generic PAGE_SECTORS but definition was not removed. Drop it as unused macro. [1] e09764cff44b5 ("shmem: quota support"). Signed-off-by: Daniel Gomez Reviewed-by: Luis Chamberlain --- mm/shmem.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index 13c27c343820..8b3823e4d344 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -84,7 +84,6 @@ static struct vfsmount *shm_mnt; #include "internal.h" -#define BLOCKS_PER_PAGE (PAGE_SIZE/512) #define VM_ACCT(size) (PAGE_ALIGN(size) >> PAGE_SHIFT) /* Pretend that each entry is of this size in directory's i_size */ From patchwork Fri Sep 15 09:51:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Gomez X-Patchwork-Id: 140551 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp1190808vqi; Fri, 15 Sep 2023 10:01:31 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFiX6OVD4cQ8dsZM65giEuzX6z6w+IY3Q+a65yTW2Nm1bqnfQEUeMdCacAHIiA8H98vVwWM X-Received: by 2002:a17:902:6aca:b0:1c3:411c:9b7d with SMTP id i10-20020a1709026aca00b001c3411c9b7dmr2073439plt.57.1694797291080; Fri, 15 Sep 2023 10:01:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694797291; cv=none; d=google.com; s=arc-20160816; b=pWQCCD0lkNsm0m52yQGL7wWhKzud+SEIIbaSwBsUXpcoz3QZnKFGjwP5FqfsEGmYWW jsbDrq0MwIGAs/Kw61atVrBsVe+vt4OjWext+8LZzophcKhUTJ9ixbt32GoxvcYF9A+1 yd2L45guSUulaFKJ904KkWSNJWFZ8iAXUxmwcCbvT1Ohd1x06uKMS9F8Mi5X+SiyyyrS Zl5yo5BwPDqN0CUm5FA7RzSElaVkAtJ+CSHYt4nssNxvJbgXNP4y3k7MQVPSpwVm8OhI ReRlxUyaDv4fpz912WI5c6PZgvu6ycysvZhCl+Z87Or2RfMxF+5CaqdWg16IJfMWxZRq ZejA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:cms-type:mime-version :content-transfer-encoding:content-language:accept-language :in-reply-to:message-id:date:thread-index:thread-topic:subject:cc:to :from:dkim-signature:dkim-filter; bh=MPvP7/bW/aMWENbqWzpXNJZ4Wgeps0pePFDrgq86iOg=; fh=uxBAUgUSkBYxjd1CTtcj7MO+vdwExfJsOb4I3IkdCcM=; b=0TsLItLE5eDibm8xE2YFpQXq0w7RTxeGl0j+k/p3jW++LYDnoTmCOAv8O3+o9mFkXn XWUozDKF4lhx16q6jjH6QBiZ8hy1FKSYyz0aRvsdF7z8wFBP1cKcuui5nDlkngZhjhKt P943m8FkrCszeDy7JmFULxqN28FT8DwxPzQ3ddTwOGVH/OIIOjyp0A/D43ftWMIWWQw+ obPNqDW4XWNNavx9cKJkqetesgK/wJCgZhy8U2PSwY1EBs+CYpWGbInYDD+uR+sO253n haJYAh234aKMSghUf0BV/d+tjr/5Q29GcIRjpfAuluUk/3eMOSOCzhZRcgSO7Q3DurzS SGtQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=uNcOYwD1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: from fry.vger.email (fry.vger.email. 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Daniel Gomez To: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "willy@infradead.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" CC: "gost.dev@samsung.com" , Pankaj Raghav , Daniel Gomez Subject: [PATCH 3/6] shmem: account for large order folios Thread-Topic: [PATCH 3/6] shmem: account for large order folios Thread-Index: AQHZ57oxkDDTtuHEck+OwDgOe5Q+ig== Date: Fri, 15 Sep 2023 09:51:26 +0000 Message-ID: <20230915095042.1320180-4-da.gomez@samsung.com> In-Reply-To: <20230915095042.1320180-1-da.gomez@samsung.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [106.110.32.103] MIME-Version: 1.0 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DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Fri, 15 Sep 2023 02:54:52 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777123764634043873 X-GMAIL-MSGID: 1777123764634043873 From: Luis Chamberlain shmem uses the shem_info_inode alloced, swapped to account for allocated pages and swapped pages. In preparation for large order folios adjust the accounting to use folio_nr_pages(). This should produce no functional changes yet as larger order folios are not yet used or supported in shmem. Signed-off-by: Luis Chamberlain Signed-off-by: Daniel Gomez --- mm/shmem.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index 8b3823e4d344..836d44584796 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -869,16 +869,16 @@ unsigned long shmem_partial_swap_usage(struct address_space *mapping, pgoff_t start, pgoff_t end) { XA_STATE(xas, &mapping->i_pages, start); - struct page *page; + struct folio *folio; unsigned long swapped = 0; unsigned long max = end - 1; rcu_read_lock(); - xas_for_each(&xas, page, max) { - if (xas_retry(&xas, page)) + xas_for_each(&xas, folio, max) { + if (xas_retry(&xas, folio)) continue; - if (xa_is_value(page)) - swapped++; + if (xa_is_value(folio)) + swapped += (folio_nr_pages(folio)); if (xas.xa_index == max) break; if (need_resched()) { @@ -1006,10 +1006,12 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend, folio = fbatch.folios[i]; if (xa_is_value(folio)) { + long swaps_freed; if (unfalloc) continue; - nr_swaps_freed += !shmem_free_swap(mapping, - indices[i], folio); + swaps_freed = folio_nr_pages(folio); + if (!shmem_free_swap(mapping, indices[i], folio)) + nr_swaps_freed += swaps_freed; continue; } @@ -1075,14 +1077,16 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend, folio = fbatch.folios[i]; if (xa_is_value(folio)) { + long swaps_freed; if (unfalloc) continue; + swaps_freed = folio_nr_pages(folio); if (shmem_free_swap(mapping, indices[i], folio)) { /* Swap was replaced by page: retry */ index = indices[i]; break; } - nr_swaps_freed++; + nr_swaps_freed += swaps_freed; continue; } @@ -1528,7 +1532,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) if (add_to_swap_cache(folio, swap, __GFP_HIGH | __GFP_NOMEMALLOC | __GFP_NOWARN, NULL) == 0) { - shmem_recalc_inode(inode, 0, 1); + shmem_recalc_inode(inode, 0, folio_nr_pages(folio)); swap_shmem_alloc(swap); shmem_delete_from_page_cache(folio, swp_to_radix_entry(swap)); @@ -1801,6 +1805,7 @@ static void shmem_set_folio_swapin_error(struct inode *inode, pgoff_t index, struct address_space *mapping = inode->i_mapping; swp_entry_t swapin_error; void *old; + long num_swap_pages; swapin_error = make_poisoned_swp_entry(); old = xa_cmpxchg_irq(&mapping->i_pages, index, @@ -1810,13 +1815,14 @@ static void shmem_set_folio_swapin_error(struct inode *inode, pgoff_t index, return; folio_wait_writeback(folio); + num_swap_pages = folio_nr_pages(folio); delete_from_swap_cache(folio); /* * Don't treat swapin error folio as alloced. Otherwise inode->i_blocks * won't be 0 when inode is released and thus trigger WARN_ON(i_blocks) * in shmem_evict_inode(). */ - shmem_recalc_inode(inode, -1, -1); + shmem_recalc_inode(inode, num_swap_pages, num_swap_pages); swap_free(swap); } @@ -1903,7 +1909,7 @@ static int shmem_swapin_folio(struct inode *inode, pgoff_t index, if (error) goto failed; - shmem_recalc_inode(inode, 0, -1); + shmem_recalc_inode(inode, 0, folio_nr_pages(folio)); if (sgp == SGP_WRITE) folio_mark_accessed(folio); @@ -2663,7 +2669,7 @@ int shmem_mfill_atomic_pte(pmd_t *dst_pmd, if (ret) goto out_delete_from_cache; - shmem_recalc_inode(inode, 1, 0); + shmem_recalc_inode(inode, folio_nr_pages(folio), 0); folio_unlock(folio); return 0; out_delete_from_cache: From patchwork Fri Sep 15 09:51:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Gomez X-Patchwork-Id: 140381 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp984214vqi; Fri, 15 Sep 2023 04:55:06 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGud65q9J6znjdefT4z42FNLna5Q2HwMWTItkciagk3yatuKW9aT9vzhdb5hU5mtJKeE6zy X-Received: by 2002:a17:90a:6746:b0:26d:49a0:2071 with SMTP id c6-20020a17090a674600b0026d49a02071mr2017465pjm.13.1694778905988; Fri, 15 Sep 2023 04:55:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694778905; cv=none; d=google.com; s=arc-20160816; b=qWCA7VJA/s2uErzAmP8SsrnKJps/fG9x/QDE3x4PdWh5SwwKtakcUVLWEtBmpSA5lS +AQaOav4qhyQY+3ZoviqTxudxBrxgYqFX1Ab41ys99ClICwzIiO1QtFxH0g1/6WxRYRg udzlGYXtAUi5cb+kdv9w5verCv5lpGnk74oQMr3tMN8C6CEP21CiTyne4ETdJqdIgFZ5 ivYOtLeojR0mCw3h1hO3DhNrBexMFfQmlcUTZ/STmhHUue+nV17/Im5KPt16JqGXIB5I rpGhOebr+fDzFggVFWc9aUbKr+0Wwu4TqlP0mlof3gbw9wfHAbS27scVqZVfT7NKXvfr YEVA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:cms-type:mime-version :content-transfer-encoding:content-language:accept-language :in-reply-to:message-id:date:thread-index:thread-topic:subject:cc:to :from:dkim-signature:dkim-filter; bh=N6Xp9rRcJyqLlmISFymB45Rbo8znf7lO4hyxQ746apU=; fh=uxBAUgUSkBYxjd1CTtcj7MO+vdwExfJsOb4I3IkdCcM=; b=ux78bjnrTI9ASRyxS4m3TGcwYAO/nQTAkhRO6aNQdOuKG6YoRQEpLTjPkoJPNWi4JL XWtlnRqxYcHvLpNRgSes6D5wscoJ0n7zqIE9MLFOlu7H2ASTz04zObs3buwzVOv/m+9a 7chA+k9nkfF0QhuL3McFZnI3GteMv7u4z4uXbZnct5MaA3z0RWSkdMEn7kjOTsQaLKRL UJfkw9ug6cD46AKcyCX3RlMZTsx9KX+MtDDVpWwUqcQKFbahhBLB21y8sq1DXuAwuWWj zgtgEaV0RV/7HktPldL2oWZw9pd1n5GZpbW6HQzbO7QkyBNY5aF5C3QZTD7FvammgsWr n6Ig== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=J2oiuKF9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: from snail.vger.email (snail.vger.email. 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Sep 2023 10:51:28 +0100 From: Daniel Gomez To: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "willy@infradead.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" CC: "gost.dev@samsung.com" , Pankaj Raghav , Daniel Gomez Subject: [PATCH 4/6] shmem: add order parameter support to shmem_alloc_folio Thread-Topic: [PATCH 4/6] shmem: add order parameter support to shmem_alloc_folio Thread-Index: AQHZ57oyL8hoyYlY0kqz+yQTJH6NwQ== Date: Fri, 15 Sep 2023 09:51:28 +0000 Message-ID: <20230915095042.1320180-5-da.gomez@samsung.com> In-Reply-To: <20230915095042.1320180-1-da.gomez@samsung.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted 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required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL, SPF_HELO_PASS,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Fri, 15 Sep 2023 02:55:02 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777104486006370863 X-GMAIL-MSGID: 1777104486006370863 In preparation for high order folio support for the write path, add order parameter when allocating a folio. This is on the write path when huge support is not enabled or when it is but the huge page allocation fails, the fallback will take advantage of this too. Use order 0 for the non write paths such as reads or swap in as these currently lack high order folios support. Signed-off-by: Daniel Gomez --- mm/shmem.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index 836d44584796..ee297d8874d3 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1669,20 +1669,21 @@ static struct folio *shmem_alloc_hugefolio(gfp_t gfp, } static struct folio *shmem_alloc_folio(gfp_t gfp, - struct shmem_inode_info *info, pgoff_t index) + struct shmem_inode_info *info, pgoff_t index, + unsigned int order) { struct vm_area_struct pvma; struct folio *folio; shmem_pseudo_vma_init(&pvma, info, index); - folio = vma_alloc_folio(gfp, 0, &pvma, 0, false); + folio = vma_alloc_folio(gfp, order, &pvma, 0, false); shmem_pseudo_vma_destroy(&pvma); return folio; } static struct folio *shmem_alloc_and_acct_folio(gfp_t gfp, struct inode *inode, - pgoff_t index, bool huge) + pgoff_t index, bool huge, unsigned int *order) { struct shmem_inode_info *info = SHMEM_I(inode); struct folio *folio; @@ -1691,7 +1692,7 @@ static struct folio *shmem_alloc_and_acct_folio(gfp_t gfp, struct inode *inode, if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) huge = false; - nr = huge ? HPAGE_PMD_NR : 1; + nr = huge ? HPAGE_PMD_NR : 1U << *order; err = shmem_inode_acct_block(inode, nr); if (err) @@ -1700,7 +1701,7 @@ static struct folio *shmem_alloc_and_acct_folio(gfp_t gfp, struct inode *inode, if (huge) folio = shmem_alloc_hugefolio(gfp, info, index); else - folio = shmem_alloc_folio(gfp, info, index); + folio = shmem_alloc_folio(gfp, info, index, *order); if (folio) { __folio_set_locked(folio); __folio_set_swapbacked(folio); @@ -1750,7 +1751,7 @@ static int shmem_replace_folio(struct folio **foliop, gfp_t gfp, */ gfp &= ~GFP_CONSTRAINT_MASK; VM_BUG_ON_FOLIO(folio_test_large(old), old); - new = shmem_alloc_folio(gfp, info, index); + new = shmem_alloc_folio(gfp, info, index, 0); if (!new) return -ENOMEM; @@ -1961,6 +1962,7 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, int error; int once = 0; int alloced = 0; + unsigned int order = 0; if (index > (MAX_LFS_FILESIZE >> PAGE_SHIFT)) return -EFBIG; @@ -2036,10 +2038,12 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, huge_gfp = vma_thp_gfp_mask(vma); huge_gfp = limit_gfp_mask(huge_gfp, gfp); - folio = shmem_alloc_and_acct_folio(huge_gfp, inode, index, true); + folio = shmem_alloc_and_acct_folio(huge_gfp, inode, index, true, + &order); if (IS_ERR(folio)) { alloc_nohuge: - folio = shmem_alloc_and_acct_folio(gfp, inode, index, false); + folio = shmem_alloc_and_acct_folio(gfp, inode, index, false, + &order); } if (IS_ERR(folio)) { int retry = 5; @@ -2602,7 +2606,7 @@ int shmem_mfill_atomic_pte(pmd_t *dst_pmd, if (!*foliop) { ret = -ENOMEM; - folio = shmem_alloc_folio(gfp, info, pgoff); + folio = shmem_alloc_folio(gfp, info, pgoff, 0); if (!folio) goto out_unacct_blocks; From patchwork Fri Sep 15 09:51:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Gomez X-Patchwork-Id: 140326 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp933322vqi; Fri, 15 Sep 2023 03:10:47 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFMGyXC3ew5Db6yXutUGUvgnMv20dNqu1VN0Y3+gOZZ3mtbjkVnHSnpL4vsr6SE93gJSnH4 X-Received: by 2002:a05:6a21:7189:b0:157:eb32:e739 with SMTP id wq9-20020a056a21718900b00157eb32e739mr1170332pzb.32.1694772647160; Fri, 15 Sep 2023 03:10:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694772647; cv=none; d=google.com; s=arc-20160816; b=B79ooSGXZj8itiHwV3SJsDIuCd3aS5wcGcPVPdArxm591mYriJ6mONfNd4C6Krn0Cu 3y0WHr9waXLvviAwkoqD7wUxuRNFB66Hh6BfRZn/8uaJSIOVQz255GUgiDQjU63FifyZ gzJ6hSAdi//iN+1hk4rF6g9megHEqUArKN1Yj3u+St3osGQV7bMgd5BMa6j6zIhbMpk5 TBIdlRb1FfoFbfuhy7Nmr/cPPSNigooOuozXYk8oWA4y4GKDfriUCkiSc4xgGYm8qRI1 fnixhCLFmsfXrGgy8ZgF/F5+5oWsrglaT9ihuVQ83lraoW8oXoMzw2gXWXVHXHRbu+jG m+Ag== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:cms-type:mime-version :content-transfer-encoding:content-language:accept-language :in-reply-to:message-id:date:thread-index:thread-topic:subject:cc:to :from:dkim-signature:dkim-filter; bh=KBxqvbiqwxbpjqMz9Z69KDs2z1l+Vy83NL/rF/oYkIA=; fh=uxBAUgUSkBYxjd1CTtcj7MO+vdwExfJsOb4I3IkdCcM=; b=Fs8tcMkUuwNWk/WID6TE773Z5nRTi8f/OQ0QzspW5xpaNtm3Fl0A3XmMEDllhGd+qL rB+MUSK1L2DznnygTnRLJDEoQGB/Myzu8asVvbKZK/A0kU96bLD4AhVW4LBMK76KEN6Z FCEFIcPhbWdm7ABghO57vkZUHqXQDcSYciMPDv0/7RD+BoTpU7TYp9trgK22ofRfvxaL l/jo6IUM0/vl5DIqp7q1AmBVmqFVjRlo2ChE1qTzmJQZJXzDx/eN4MaDecKi1SmIKYfN nmKZlZrs7jrdGSrp1n/4vMQRUyd6Nwy98bCSJnZWjmrSK0jrzuqTKs1ebA+TITkj8S8/ iDuA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=JOehX4by; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: from agentk.vger.email (agentk.vger.email. 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Sep 2023 10:51:30 +0100 From: Daniel Gomez To: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "willy@infradead.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" CC: "gost.dev@samsung.com" , Pankaj Raghav , Daniel Gomez Subject: [PATCH 5/6] shmem: add file length in shmem_get_folio path Thread-Topic: [PATCH 5/6] shmem: add file length in shmem_get_folio path Thread-Index: AQHZ57ozxEpCdFcMBk645e2R7dVRyg== Date: Fri, 15 Sep 2023 09:51:29 +0000 Message-ID: <20230915095042.1320180-6-da.gomez@samsung.com> In-Reply-To: <20230915095042.1320180-1-da.gomez@samsung.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: 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DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Fri, 15 Sep 2023 02:55:00 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777097923357683077 X-GMAIL-MSGID: 1777097923357683077 To be able to calculate folio order based on the file size when allocation occurs on the write path. Use of length 0 for non write paths. Signed-off-by: Daniel Gomez --- include/linux/shmem_fs.h | 2 +- mm/khugepaged.c | 2 +- mm/shmem.c | 28 ++++++++++++++++------------ 3 files changed, 18 insertions(+), 14 deletions(-) diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index 6b0c626620f5..b3509e7f1054 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -133,7 +133,7 @@ enum sgp_type { }; int shmem_get_folio(struct inode *inode, pgoff_t index, struct folio **foliop, - enum sgp_type sgp); + enum sgp_type sgp, size_t len); struct folio *shmem_read_folio_gfp(struct address_space *mapping, pgoff_t index, gfp_t gfp); diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 88433cc25d8a..e5d3feff6de6 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -1856,7 +1856,7 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr, xas_unlock_irq(&xas); /* swap in or instantiate fallocated page */ if (shmem_get_folio(mapping->host, index, - &folio, SGP_NOALLOC)) { + &folio, SGP_NOALLOC, 0)) { result = SCAN_FAIL; goto xa_unlocked; } diff --git a/mm/shmem.c b/mm/shmem.c index ee297d8874d3..adff74751065 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -969,7 +969,7 @@ static struct folio *shmem_get_partial_folio(struct inode *inode, pgoff_t index) * (although in some cases this is just a waste of time). */ folio = NULL; - shmem_get_folio(inode, index, &folio, SGP_READ); + shmem_get_folio(inode, index, &folio, SGP_READ, 0); return folio; } @@ -1950,7 +1950,7 @@ static int shmem_swapin_folio(struct inode *inode, pgoff_t index, static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, struct folio **foliop, enum sgp_type sgp, gfp_t gfp, struct vm_area_struct *vma, struct vm_fault *vmf, - vm_fault_t *fault_type) + vm_fault_t *fault_type, size_t len) { struct address_space *mapping = inode->i_mapping; struct shmem_inode_info *info = SHMEM_I(inode); @@ -2164,10 +2164,11 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, } int shmem_get_folio(struct inode *inode, pgoff_t index, struct folio **foliop, - enum sgp_type sgp) + enum sgp_type sgp, size_t len) { return shmem_get_folio_gfp(inode, index, foliop, sgp, - mapping_gfp_mask(inode->i_mapping), NULL, NULL, NULL); + mapping_gfp_mask(inode->i_mapping), + NULL, NULL, NULL, len); } /* @@ -2251,7 +2252,7 @@ static vm_fault_t shmem_fault(struct vm_fault *vmf) } err = shmem_get_folio_gfp(inode, vmf->pgoff, &folio, SGP_CACHE, - gfp, vma, vmf, &ret); + gfp, vma, vmf, &ret, i_size_read(inode)); if (err) return vmf_error(err); if (folio) @@ -2702,6 +2703,9 @@ shmem_write_begin(struct file *file, struct address_space *mapping, struct folio *folio; int ret = 0; + if (!mapping_large_folio_support(mapping)) + len = min_t(size_t, len, PAGE_SIZE - offset_in_page(pos)); + /* i_rwsem is held by caller */ if (unlikely(info->seals & (F_SEAL_GROW | F_SEAL_WRITE | F_SEAL_FUTURE_WRITE))) { @@ -2711,7 +2715,7 @@ shmem_write_begin(struct file *file, struct address_space *mapping, return -EPERM; } - ret = shmem_get_folio(inode, index, &folio, SGP_WRITE); + ret = shmem_get_folio(inode, index, &folio, SGP_WRITE, len); if (ret) return ret; @@ -2783,7 +2787,7 @@ static ssize_t shmem_file_read_iter(struct kiocb *iocb, struct iov_iter *to) break; } - error = shmem_get_folio(inode, index, &folio, SGP_READ); + error = shmem_get_folio(inode, index, &folio, SGP_READ, 0); if (error) { if (error == -EINVAL) error = 0; @@ -2960,7 +2964,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos, break; error = shmem_get_folio(inode, *ppos / PAGE_SIZE, &folio, - SGP_READ); + SGP_READ, 0); if (error) { if (error == -EINVAL) error = 0; @@ -3147,7 +3151,7 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset, error = -ENOMEM; else error = shmem_get_folio(inode, index, &folio, - SGP_FALLOC); + SGP_FALLOC, 0); if (error) { info->fallocend = undo_fallocend; /* Remove the !uptodate folios we added */ @@ -3502,7 +3506,7 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir, inode->i_op = &shmem_short_symlink_operations; } else { inode_nohighmem(inode); - error = shmem_get_folio(inode, 0, &folio, SGP_WRITE); + error = shmem_get_folio(inode, 0, &folio, SGP_WRITE, 0); if (error) goto out_remove_offset; inode->i_mapping->a_ops = &shmem_aops; @@ -3550,7 +3554,7 @@ static const char *shmem_get_link(struct dentry *dentry, return ERR_PTR(-ECHILD); } } else { - error = shmem_get_folio(inode, 0, &folio, SGP_READ); + error = shmem_get_folio(inode, 0, &folio, SGP_READ, 0); if (error) return ERR_PTR(error); if (!folio) @@ -4923,7 +4927,7 @@ struct folio *shmem_read_folio_gfp(struct address_space *mapping, BUG_ON(!shmem_mapping(mapping)); error = shmem_get_folio_gfp(inode, index, &folio, SGP_CACHE, - gfp, NULL, NULL, NULL); + gfp, NULL, NULL, NULL, i_size_read(inode)); if (error) return ERR_PTR(error); From patchwork Fri Sep 15 09:51:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Gomez X-Patchwork-Id: 140621 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp1250710vqi; Fri, 15 Sep 2023 11:46:18 -0700 (PDT) X-Google-Smtp-Source: AGHT+IF7iHwTSCwUykdSyzsxjrI6C4kDfn9ZXeVjmecW4OxOpyr1PQZKDXEs9NWN6zu6z0luOcfY X-Received: by 2002:a05:6a00:21cb:b0:68f:fa05:b77a with SMTP id t11-20020a056a0021cb00b0068ffa05b77amr2788547pfj.31.1694803578653; 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Fri, 15 Sep 2023 09:51:33 +0000 (GMT) X-AuditID: cbfec7f2-a3bff7000002a5b7-26-65042925ea5e Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 5B.3B.10549.52924056; Fri, 15 Sep 2023 10:51:33 +0100 (BST) Received: from CAMSVWEXC01.scsc.local (unknown [106.1.227.71]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20230915095133eusmtip145b39d48e2d4c2b2f0f476f141a1971f~FCbGQl2U92594625946eusmtip1i; Fri, 15 Sep 2023 09:51:33 +0000 (GMT) Received: from CAMSVWEXC02.scsc.local (2002:6a01:e348::6a01:e348) by CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 15 Sep 2023 10:51:32 +0100 Received: from CAMSVWEXC02.scsc.local ([::1]) by CAMSVWEXC02.scsc.local ([fe80::3c08:6c51:fa0a:6384%13]) with mapi id 15.00.1497.012; Fri, 15 Sep 2023 10:51:32 +0100 From: Daniel Gomez To: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "willy@infradead.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" CC: "gost.dev@samsung.com" , Pankaj Raghav , Daniel Gomez Subject: [PATCH 6/6] shmem: add large folios support to the write path Thread-Topic: [PATCH 6/6] shmem: add large folios support to the write path Thread-Index: AQHZ57o0gOj42/h7V0WVSDdaHJaWqA== Date: Fri, 15 Sep 2023 09:51:31 +0000 Message-ID: <20230915095042.1320180-7-da.gomez@samsung.com> In-Reply-To: <20230915095042.1320180-1-da.gomez@samsung.com> Accept-Language: en-US, en-GB Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [106.110.32.103] MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrKKsWRmVeSWpSXmKPExsWy7djP87qqmiypBpfmq1vMWb+GzWL13X42 i8tP+Cyefupjsdh7S9tiz96TLBaXd81hs7i35j+rxa4/O9gtbkx4ymix7Ot7dovdGxexWfz+ MYfNgddjdsNFFo8Fm0o9Nq/Q8rh8ttRj06pONo9Nnyaxe5yY8ZvF4/MmuQCOKC6blNSczLLU In27BK6M/d1mBbuEKv5se8bWwHiar4uRg0NCwETia5tOFyMXh5DACkaJncsWMkM4Xxgl9t9b xgLhfGaUeNZ6mxWmY94rFYj4ckaJoy1b2eCKfmyeDeWcYZRY8vYn1KyVjBLbZr0EmsXJwSag KbHv5CZ2kISIwGxWicOLOxhBEswCdRJrns0CKmLnEBZwk1ijDxIVEfCWeLFzCRuErSfx/tAb sGoWAVWJz7t+soNcxCtgLbH+VjaIySlgI/H+RzlIBaOArMSjlb/YIWaLS9x6Mp8JxJYQEJRY NHsPM4QtJvFv10M2CFtH4uz1J4wQtoHE1qX7WCBsJYk/HQuhbtSTuDF1ChuErS2xbOFrsDm8 QDNPznwCDiwJgSYuicZ7nawQzS4SvXtPQA0Vlnh1fAs7hC0j8X/nfKYJjNqzkNw3C8mOWUh2 zEKyYwEjyypG8dTS4tz01GLDvNRyveLE3OLSvHS95PzcTYzAlHb63/FPOxjnvvqod4iRiYPx EKMEB7OSCC+bLVOqEG9KYmVValF+fFFpTmrxIUZpDhYlcV5t25PJQgLpiSWp2ampBalFMFkm Dk6pBqaWRM5Pj4tPdNV4Tzrws1rjd/3C9dXPnLiL7z9YHLMk/25guu/P9V+Lpdj4Z2jzRDL9 l1n0MeamnZfEdI3PdaVHPr6/flR/4rROu4AjFyYG3lsqODM4gm3BhvUcbW9kdZkqJP++jO10 +TF3ofZvNbvbTXvvJSoXmcvaT9tXu1LT1zBiW03Dzis/1tsU297Ilzn5vvTou6anmTPCN1rK P1Nlets6Y5X0mUNc6/9nzXUwkfJ11t66P5G16WNq9pEzTc95wi/PNT3UxG786OrEkF3qgR8f b/Xfc2ZyZ7XDBLuIVTWL1wp/NF1wlt1HU1nSzTK1sWNiTcP7ne8S7FfxKm+enyh5R97rdfMO xZ+fHLmUWIozEg21mIuKEwGrauQe2AMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPKsWRmVeSWpSXmKPExsVy+t/xu7qqmiypBlf+cVjMWb+GzWL13X42 i8tP+Cyefupjsdh7S9tiz96TLBaXd81hs7i35j+rxa4/O9gtbkx4ymix7Ot7dovdGxexWfz+ MYfNgddjdsNFFo8Fm0o9Nq/Q8rh8ttRj06pONo9Nnyaxe5yY8ZvF4/MmuQCOKD2bovzSklSF jPziElulaEMLIz1DSws9IxNLPUNj81grI1MlfTublNSczLLUIn27BL2M/d1mBbuEKv5se8bW wHiar4uRg0NCwERi3iuVLkYuDiGBpYwSRx/fZOti5ASKy0hs/HKVFcIWlvhzrYsNougjo8S3 ta9ZQBJCAmcYJfo+VkMkVjJKHGvcBZZgE9CU2HdyEztIQkRgNqvE4cUdjCAJZoE6iTXPZgEV sXMIC7hJrNEHiYoIeEu82LmEDcLWk3h/6A1YNYuAqsTnXT/ZQQ7lFbCWWH8rG8QUAjJnTfcC MTkFbCTe/ygHKWYUkJV4tPIXO8QacYlbT+YzQVwvILFkz3lmCFtU4uXjf1Bf6Uicvf6EEcI2 kNi6dB8LhK0k8adjIdS5ehI3pk5hg7C1JZYtfA02h1dAUOLkzCcsExilZyFZNwtJyywkLbOQ tCxgZFnFKJJaWpybnltsqFecmFtcmpeul5yfu4kRmJK2Hfu5eQfjvFcf9Q4xMnEwHmKU4GBW EuFls2VKFeJNSaysSi3Kjy8qzUktPsRoCgygicxSosn5wKSYVxJvaGZgamhiZmlgamlmrCTO 61nQkSgkkJ5YkpqdmlqQWgTTx8TBKdXAFGb97Euc/wHZOwe2H2d42C6wT9inRO7LFrv2jz5P F+jw6Pd+rmiR+vWiN6yJcdZj/UWebt99mZZpm3FUc8u9iHs94eG6jMblr2Q0rq9tOuBysvnq HqNDv/XmeUz9sMmm9fl6u4v7WCZt+nauo1l/yR1BpU1qlornQqTCTdjnZiWU1r2rlODnvbzW y/y5mNgqoQcvG6a8O3E48N3Ed//ZoxIdvsRvEP6t4OX9WH7C2uygo9XeTnlK3J69P5QXenPc YjKPy5Hg+z9xZ/CXbD2xu1ucfZzSnzWK+9ucKK07vLfk5Url5KaYKNUCptfdS40XvdXc07yx feHuG8fPJVYcFP399u7Tmcvfdkzx73g/VYmlOCPRUIu5qDgRACdVhs7SAwAA X-CMS-MailID: 20230915095133eucas1p267bade2888b7fcd2e1ea8e13e21c495f X-Msg-Generator: CA X-RootMTR: 20230915095133eucas1p267bade2888b7fcd2e1ea8e13e21c495f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230915095133eucas1p267bade2888b7fcd2e1ea8e13e21c495f References: <20230915095042.1320180-1-da.gomez@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Fri, 15 Sep 2023 02:55:31 -0700 (PDT) X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777130357035894073 X-GMAIL-MSGID: 1777130357035894073 Add large folio support for shmem write path matching the same high order preference mechanism used for iomap buffered IO path as used in __filemap_get_folio(). Use the __folio_get_max_order to get a hint for the order of the folio based on file size which takes care of the mapping requirements. Swap does not support high order folios for now, so make it order 0 in case swap is enabled. Signed-off-by: Daniel Gomez --- mm/shmem.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index adff74751065..26ca555b1669 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1683,13 +1683,19 @@ static struct folio *shmem_alloc_folio(gfp_t gfp, } static struct folio *shmem_alloc_and_acct_folio(gfp_t gfp, struct inode *inode, - pgoff_t index, bool huge, unsigned int *order) + pgoff_t index, bool huge, unsigned int *order, + struct shmem_sb_info *sbinfo) { struct shmem_inode_info *info = SHMEM_I(inode); struct folio *folio; int nr; int err; + if (!sbinfo->noswap) + *order = 0; + else + *order = (*order == 1) ? 0 : *order; + if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) huge = false; nr = huge ? HPAGE_PMD_NR : 1U << *order; @@ -2032,6 +2038,8 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, return 0; } + order = mapping_size_order(inode->i_mapping, index, len); + if (!shmem_is_huge(inode, index, false, vma ? vma->vm_mm : NULL, vma ? vma->vm_flags : 0)) goto alloc_nohuge; @@ -2039,11 +2047,11 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, huge_gfp = vma_thp_gfp_mask(vma); huge_gfp = limit_gfp_mask(huge_gfp, gfp); folio = shmem_alloc_and_acct_folio(huge_gfp, inode, index, true, - &order); + &order, sbinfo); if (IS_ERR(folio)) { alloc_nohuge: folio = shmem_alloc_and_acct_folio(gfp, inode, index, false, - &order); + &order, sbinfo); } if (IS_ERR(folio)) { int retry = 5; @@ -2147,6 +2155,8 @@ static int shmem_get_folio_gfp(struct inode *inode, pgoff_t index, if (folio_test_large(folio)) { folio_unlock(folio); folio_put(folio); + if (order > 0) + order--; goto alloc_nohuge; } unlock: