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| author |  Matthew Wilcox (Oracle) <willy@infradead.org>
| 2020-12-08 08:56:28 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org>
| 2021-10-18 07:49:40 -0400 |
| commit | 9dd3d069406cea073fc633e77bc59abbfde8c6c4 (patch) | |
| tree | 5c384bbda7aa6165f7dbf2be9a5f95c4e29319f7 /include | |
| parent | mm/filemap: Add filemap_alloc_folio (diff) | |
| download | linux-9dd3d069406cea073fc633e77bc59abbfde8c6c4.tar.gz linux-9dd3d069406cea073fc633e77bc59abbfde8c6c4.tar.bz2 linux-9dd3d069406cea073fc633e77bc59abbfde8c6c4.zip | |
mm/filemap: Add filemap_add_folio()
Convert __add_to_page_cache_locked() into __filemap_add_folio().
Add an assertion to it that (for !hugetlbfs), the folio is naturally
aligned within the file. Move the prototype from mm.h to pagemap.h.
Convert add_to_page_cache_lru() into filemap_add_folio(). Add a
compatibility wrapper for unconverted callers.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 7 | ||||
| -rw-r--r-- | include/linux/pagemap.h | 10 |
2 files changed, 8 insertions, 9 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 23ab040aa65a..efcb06fc6116 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -213,13 +213,6 @@ int overcommit_kbytes_handler(struct ctl_table *, int, void *, size_t *, loff_t *); int overcommit_policy_handler(struct ctl_table *, int, void *, size_t *, loff_t *); -/* - * Any attempt to mark this function as static leads to build failure - * when CONFIG_DEBUG_INFO_BTF is enabled because __add_to_page_cache_locked() - * is referred to by BPF code. This must be visible for error injection. - */ -int __add_to_page_cache_locked(struct page *page, struct address_space *mapping, - pgoff_t index, gfp_t gfp, void **shadowp); #if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP) #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n)) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 51c190ae3b0b..a10eb6dc3866 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -876,9 +876,11 @@ static inline int fault_in_pages_readable(const char __user *uaddr, size_t size) } int add_to_page_cache_locked(struct page *page, struct address_space *mapping, - pgoff_t index, gfp_t gfp_mask); + pgoff_t index, gfp_t gfp); int add_to_page_cache_lru(struct page *page, struct address_space *mapping, - pgoff_t index, gfp_t gfp_mask); + pgoff_t index, gfp_t gfp); +int filemap_add_folio(struct address_space *mapping, struct folio *folio, + pgoff_t index, gfp_t gfp); extern void delete_from_page_cache(struct page *page); extern void __delete_from_page_cache(struct page *page, void *shadow); void replace_page_cache_page(struct page *old, struct page *new); @@ -903,6 +905,10 @@ static inline int add_to_page_cache(struct page *page, return error; } +/* Must be non-static for BPF error injection */ +int __filemap_add_folio(struct address_space *mapping, struct folio *folio, + pgoff_t index, gfp_t gfp, void **shadowp); + /** * struct readahead_control - Describes a readahead request. * |