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authorPankaj Raghav <p.raghav@samsung.com>2023-04-17 15:36:16 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-04-22 00:52:01 +0300
commitc71124a8afa441af203d2001a92c91f114446687 (patch)
tree1b111553fcda41b94e8bd1f77e76033976e68e58 /include/linux/buffer_head.h
parent465e5e6a1698f3325f5d2262d2875779b06b50c7 (diff)
downloadlinux-c71124a8afa441af203d2001a92c91f114446687.tar.xz
buffer: add folio_alloc_buffers() helper
Folio version of alloc_page_buffers() helper. This is required to convert create_page_buffers() to folio_create_buffers() later in the series. alloc_page_buffers() has been modified to call folio_alloc_buffers() which adds one call to compound_head() but folio_alloc_buffers() removes one call to compound_head() compared to the existing alloc_page_buffers() implementation. Link: https://lkml.kernel.org/r/20230417123618.22094-3-p.raghav@samsung.com Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/buffer_head.h')
-rw-r--r--include/linux/buffer_head.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 7e92d23f4782..0b14eab41bd1 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -199,6 +199,8 @@ void set_bh_page(struct buffer_head *bh,
void folio_set_bh(struct buffer_head *bh, struct folio *folio,
unsigned long offset);
bool try_to_free_buffers(struct folio *);
+struct buffer_head *folio_alloc_buffers(struct folio *folio, unsigned long size,
+ bool retry);
struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,
bool retry);
void create_empty_buffers(struct page *, unsigned long,