mm: update comments for get/set_pfnblock_flags_mask
Subsystems (2)
PATCH 1/1 mm: update comments for get/set_pfnblock_flags_mask
These two functions changed many times, and comments are out of data for a long time. Though it's minor, better update it.
Signed-off-by Qiang Huang <[email protected]>
--- mm/page_alloc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
mm/page_alloc.c +6 -4
@@ -6034,10 +6034,11 @@ static inline int pfn_to_bitidx(struct zone *zone, unsigned long pfn) }/** -* get_pageblock_flags_group - Return the requested group of flags for the pageblock_nr_pages block of pages +* get_pfnblock_flags_mask - Return the requested group of flags for the pageblock_nr_pages block of pages * @page: The page within the block of interest -* @start_bitidx: The first bit of interest to retrieve +* @pfn: Page Number of the page * @end_bitidx: The last bit of interest +* @mask: The mask for flags * returns pageblock_bits flags */ unsigned long get_pfnblock_flags_mask(struct page *page, unsigned long pfn,
@@ -6063,9 +6064,10 @@ unsigned long get_pfnblock_flags_mask(struct page *page, unsigned long pfn,/** * set_pfnblock_flags_mask - Set the requested group of flags for a pageblock_nr_pages block of pages * @page: The page within the block of interest -* @start_bitidx: The first bit of interest -* @end_bitidx: The last bit of interest * @flags: The flags to set +* @pfn: Page Number of the page +* @end_bitidx: The last bit of interest +* @mask: The mask for flags */ void set_pfnblock_flags_mask(struct page *page, unsigned long flags, unsigned long pfn,
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