From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 93A5C29ACC3 for ; Sun, 21 Sep 2025 21:24:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758489867; cv=none; b=ieF4E8IwOSVUsW5+imWtyiitiRxAuQVQT1rn62VoDbKH+Kz/+ElWHVxqqtiRqoReWsS5Zckv9EAc3Pjek3PQHlP1krR7onhteIDvRI81H6d0lBTibJQ71RKnljXEmHXPltm7WttV87ffFQ7i9oR2k3jMB/nwDayMh6n3ROD6NIw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758489867; c=relaxed/simple; bh=EzkJG9DNAsaYIGg9/dbK015c1WSmrZjPZpaLIid33Yc=; h=Date:To:From:Subject:Message-Id; b=HzZQuo5m01qmM1mZEwi/zNUQZmAgoZq9wV3whR8DByIJVzfS3nOEPEzKTqtljPYiKro4Xm+30pW9YJiMXnl64NCi6wKWWoHaxOvnHvOK+aGUhCTcPn6SELfZ9yyP9rq4ewfskKG3yxukZG6RWXRrOOkt8za5Tk+jPT4AssGkWLo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=IBKDB0SH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="IBKDB0SH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 61D7DC4CEE7; Sun, 21 Sep 2025 21:24:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1758489867; bh=EzkJG9DNAsaYIGg9/dbK015c1WSmrZjPZpaLIid33Yc=; h=Date:To:From:Subject:From; b=IBKDB0SHJTnNfghiiH5tUGW9Iz/zTq8m0v1yg7kIwzCaFI9oYZ1JbXFTCU+tQtYV6 FV3ni7PMYxbflAtymdAisn64eoFtibMPOgZcYEGotXDQvHpWYG1folXfD6anyayABg ZyrWWQE3C7TsX0i+6vpfB4hyHB9fzcKatUuP72h0= Date: Sun, 21 Sep 2025 14:24:26 -0700 To: mm-commits@vger.kernel.org,yuanchu@google.com,willy@infradead.org,weixugc@google.com,vishal.moola@gmail.com,viro@zeniv.linux.org.uk,vbabka@suse.cz,thuth@redhat.com,tglx@linutronix.de,svens@linux.ibm.com,surenb@google.com,shakeel.butt@linux.dev,rppt@kernel.org,rientjes@google.com,peterz@infradead.org,osalvador@suse.de,nysal@linux.ibm.com,mpe@ellerman.id.au,mingo@redhat.com,mhocko@suse.com,luto@kernel.org,lorenzo.stoakes@oracle.com,linux@armlinux.org.uk,liam.howlett@oracle.com,jfalempe@redhat.com,jcmvbkbc@gmail.com,james.bottomley@HansenPartnership.com,jack@suse.cz,hughd@google.com,hpa@zytor.com,hca@linux.ibm.com,gor@linux.ibm.com,gerald.schaefer@linux.ibm.com,deller@gmx.de,david@redhat.com,davem@davemloft.net,chris@zankel.net,broonie@kernel.org,brauner@kernel.org,bp@alien8.de,borntraeger@linux.ibm.com,baolin.wang@linux.alibaba.com,axelrasmussen@google.com,andreas@gaisler.com,agordeev@linux.ibm.com,max.kellermann@ionos.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-constify-pagemap-related-test-getter-functions.patch removed from -mm tree Message-Id: <20250921212427.61D7DC4CEE7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm: constify pagemap related test/getter functions has been removed from the -mm tree. Its filename was mm-constify-pagemap-related-test-getter-functions.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Max Kellermann Subject: mm: constify pagemap related test/getter functions Date: Mon, 1 Sep 2025 22:50:11 +0200 For improved const-correctness. We select certain test functions which either invoke each other, functions that are already const-ified, or no further functions. It is therefore relatively trivial to const-ify them, which provides a basis for further const-ification further up the call stack. Link: https://lkml.kernel.org/r/20250901205021.3573313-3-max.kellermann@ionos.com Signed-off-by: Max Kellermann Reviewed-by: Vishal Moola (Oracle) Reviewed-by: Lorenzo Stoakes Acked-by: David Hildenbrand Acked-by: Vlastimil Babka Acked-by: Mike Rapoport (Microsoft) Acked-by: Shakeel Butt Cc: Alexander Gordeev Cc: Al Viro Cc: Andreas Larsson Cc: Andy Lutomirski Cc: Axel Rasmussen Cc: Baolin Wang Cc: Borislav Betkov Cc: Christian Borntraeger Cc: Christian Brauner Cc: Christian Zankel Cc: David Rientjes Cc: David S. Miller Cc: Gerald Schaefer Cc: Heiko Carstens Cc: Helge Deller Cc: "H. Peter Anvin" Cc: Hugh Dickins Cc: Ingo Molnar Cc: James Bottomley Cc: Jan Kara Cc: Jocelyn Falempe Cc: Liam Howlett Cc: Mark Brown Cc: Matthew Wilcox (Oracle) Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Hocko Cc: "Nysal Jan K.A" Cc: Oscar Salvador Cc: Peter Zijlstra Cc: Russel King Cc: Suren Baghdasaryan Cc: Sven Schnelle Cc: Thomas Gleinxer Cc: Thomas Huth Cc: Vasily Gorbik Cc: Wei Xu Cc: Yuanchu Xie Signed-off-by: Andrew Morton --- include/linux/pagemap.h | 55 +++++++++++++++++++------------------- 1 file changed, 28 insertions(+), 27 deletions(-) --- a/include/linux/pagemap.h~mm-constify-pagemap-related-test-getter-functions +++ a/include/linux/pagemap.h @@ -140,7 +140,7 @@ static inline int inode_drain_writes(str return filemap_write_and_wait(inode->i_mapping); } -static inline bool mapping_empty(struct address_space *mapping) +static inline bool mapping_empty(const struct address_space *mapping) { return xa_empty(&mapping->i_pages); } @@ -166,7 +166,7 @@ static inline bool mapping_empty(struct * refcount and the referenced bit, which will be elevated or set in * the process of adding new cache pages to an inode. */ -static inline bool mapping_shrinkable(struct address_space *mapping) +static inline bool mapping_shrinkable(const struct address_space *mapping) { void *head; @@ -267,7 +267,7 @@ static inline void mapping_clear_unevict clear_bit(AS_UNEVICTABLE, &mapping->flags); } -static inline bool mapping_unevictable(struct address_space *mapping) +static inline bool mapping_unevictable(const struct address_space *mapping) { return mapping && test_bit(AS_UNEVICTABLE, &mapping->flags); } @@ -277,7 +277,7 @@ static inline void mapping_set_exiting(s set_bit(AS_EXITING, &mapping->flags); } -static inline int mapping_exiting(struct address_space *mapping) +static inline int mapping_exiting(const struct address_space *mapping) { return test_bit(AS_EXITING, &mapping->flags); } @@ -287,7 +287,7 @@ static inline void mapping_set_no_writeb set_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags); } -static inline int mapping_use_writeback_tags(struct address_space *mapping) +static inline int mapping_use_writeback_tags(const struct address_space *mapping) { return !test_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags); } @@ -333,7 +333,7 @@ static inline void mapping_set_inaccessi set_bit(AS_INACCESSIBLE, &mapping->flags); } -static inline bool mapping_inaccessible(struct address_space *mapping) +static inline bool mapping_inaccessible(const struct address_space *mapping) { return test_bit(AS_INACCESSIBLE, &mapping->flags); } @@ -343,18 +343,18 @@ static inline void mapping_set_writeback set_bit(AS_WRITEBACK_MAY_DEADLOCK_ON_RECLAIM, &mapping->flags); } -static inline bool mapping_writeback_may_deadlock_on_reclaim(struct address_space *mapping) +static inline bool mapping_writeback_may_deadlock_on_reclaim(const struct address_space *mapping) { return test_bit(AS_WRITEBACK_MAY_DEADLOCK_ON_RECLAIM, &mapping->flags); } -static inline gfp_t mapping_gfp_mask(struct address_space * mapping) +static inline gfp_t mapping_gfp_mask(const struct address_space *mapping) { return mapping->gfp_mask; } /* Restricts the given gfp_mask to what the mapping allows. */ -static inline gfp_t mapping_gfp_constraint(struct address_space *mapping, +static inline gfp_t mapping_gfp_constraint(const struct address_space *mapping, gfp_t gfp_mask) { return mapping_gfp_mask(mapping) & gfp_mask; @@ -477,7 +477,7 @@ mapping_min_folio_order(const struct add } static inline unsigned long -mapping_min_folio_nrpages(struct address_space *mapping) +mapping_min_folio_nrpages(const struct address_space *mapping) { return 1UL << mapping_min_folio_order(mapping); } @@ -491,7 +491,7 @@ mapping_min_folio_nrpages(struct address * new folio to the page cache and need to know what index to give it, * call this function. */ -static inline pgoff_t mapping_align_index(struct address_space *mapping, +static inline pgoff_t mapping_align_index(const struct address_space *mapping, pgoff_t index) { return round_down(index, mapping_min_folio_nrpages(mapping)); @@ -501,7 +501,7 @@ static inline pgoff_t mapping_align_inde * Large folio support currently depends on THP. These dependencies are * being worked on but are not yet fixed. */ -static inline bool mapping_large_folio_support(struct address_space *mapping) +static inline bool mapping_large_folio_support(const struct address_space *mapping) { /* AS_FOLIO_ORDER is only reasonable for pagecache folios */ VM_WARN_ONCE((unsigned long)mapping & FOLIO_MAPPING_ANON, @@ -516,7 +516,7 @@ static inline size_t mapping_max_folio_s return PAGE_SIZE << mapping_max_folio_order(mapping); } -static inline int filemap_nr_thps(struct address_space *mapping) +static inline int filemap_nr_thps(const struct address_space *mapping) { #ifdef CONFIG_READ_ONLY_THP_FOR_FS return atomic_read(&mapping->nr_thps); @@ -930,7 +930,7 @@ static inline struct page *grab_cache_pa * * Return: The index of the folio which follows this folio in the file. */ -static inline pgoff_t folio_next_index(struct folio *folio) +static inline pgoff_t folio_next_index(const struct folio *folio) { return folio->index + folio_nr_pages(folio); } @@ -959,7 +959,7 @@ static inline struct page *folio_file_pa * e.g., shmem did not move this folio to the swap cache. * Return: true or false. */ -static inline bool folio_contains(struct folio *folio, pgoff_t index) +static inline bool folio_contains(const struct folio *folio, pgoff_t index) { VM_WARN_ON_ONCE_FOLIO(folio_test_swapcache(folio), folio); return index - folio->index < folio_nr_pages(folio); @@ -1036,13 +1036,13 @@ static inline loff_t page_offset(struct /* * Get the offset in PAGE_SIZE (even for hugetlb folios). */ -static inline pgoff_t folio_pgoff(struct folio *folio) +static inline pgoff_t folio_pgoff(const struct folio *folio) { return folio->index; } -static inline pgoff_t linear_page_index(struct vm_area_struct *vma, - unsigned long address) +static inline pgoff_t linear_page_index(const struct vm_area_struct *vma, + const unsigned long address) { pgoff_t pgoff; pgoff = (address - vma->vm_start) >> PAGE_SHIFT; @@ -1462,7 +1462,7 @@ static inline unsigned int __readahead_b * readahead_pos - The byte offset into the file of this readahead request. * @rac: The readahead request. */ -static inline loff_t readahead_pos(struct readahead_control *rac) +static inline loff_t readahead_pos(const struct readahead_control *rac) { return (loff_t)rac->_index * PAGE_SIZE; } @@ -1471,7 +1471,7 @@ static inline loff_t readahead_pos(struc * readahead_length - The number of bytes in this readahead request. * @rac: The readahead request. */ -static inline size_t readahead_length(struct readahead_control *rac) +static inline size_t readahead_length(const struct readahead_control *rac) { return rac->_nr_pages * PAGE_SIZE; } @@ -1480,7 +1480,7 @@ static inline size_t readahead_length(st * readahead_index - The index of the first page in this readahead request. * @rac: The readahead request. */ -static inline pgoff_t readahead_index(struct readahead_control *rac) +static inline pgoff_t readahead_index(const struct readahead_control *rac) { return rac->_index; } @@ -1489,7 +1489,7 @@ static inline pgoff_t readahead_index(st * readahead_count - The number of pages in this readahead request. * @rac: The readahead request. */ -static inline unsigned int readahead_count(struct readahead_control *rac) +static inline unsigned int readahead_count(const struct readahead_control *rac) { return rac->_nr_pages; } @@ -1498,12 +1498,12 @@ static inline unsigned int readahead_cou * readahead_batch_length - The number of bytes in the current batch. * @rac: The readahead request. */ -static inline size_t readahead_batch_length(struct readahead_control *rac) +static inline size_t readahead_batch_length(const struct readahead_control *rac) { return rac->_batch_count * PAGE_SIZE; } -static inline unsigned long dir_pages(struct inode *inode) +static inline unsigned long dir_pages(const struct inode *inode) { return (unsigned long)(inode->i_size + PAGE_SIZE - 1) >> PAGE_SHIFT; @@ -1517,8 +1517,8 @@ static inline unsigned long dir_pages(st * Return: the number of bytes in the folio up to EOF, * or -EFAULT if the folio was truncated. */ -static inline ssize_t folio_mkwrite_check_truncate(struct folio *folio, - struct inode *inode) +static inline ssize_t folio_mkwrite_check_truncate(const struct folio *folio, + const struct inode *inode) { loff_t size = i_size_read(inode); pgoff_t index = size >> PAGE_SHIFT; @@ -1549,7 +1549,8 @@ static inline ssize_t folio_mkwrite_chec * Return: The number of filesystem blocks covered by this folio. */ static inline -unsigned int i_blocks_per_folio(struct inode *inode, struct folio *folio) +unsigned int i_blocks_per_folio(const struct inode *inode, + const struct folio *folio) { return folio_size(folio) >> inode->i_blkbits; } _ Patches currently in -mm which might be from max.kellermann@ionos.com are