Re: [PATCH] mm: fix filemap.c pagecache_get_page() kernel-doc warnings

[Mel Gorman <mgorman@suse.de>]

On Sun, Jul 27, 2014 at 01:45:33PM -0700, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@infradead.org>
> 
> Fix kernel-doc warnings in mm/filemap.c: pagecache_get_page():
> 
> Warning(..//mm/filemap.c:1054): No description found for parameter 'cache_gfp_mask'
> Warning(..//mm/filemap.c:1054): No description found for parameter 'radix_gfp_mask'
> Warning(..//mm/filemap.c:1054): Excess function parameter 'gfp_mask' description in 'pagecache_get_page'
> 
> Fixes: 2457aec63745 "mm: non-atomically mark page accessed during
> 	page cache allocation where possible"
> 
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> Cc: Mel Gorman <mgorman@suse.de>

Use this diff instead?

---8<---
diff --git a/mm/filemap.c b/mm/filemap.c
index dafb06f..a1021fa 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1031,18 +1031,21 @@ EXPORT_SYMBOL(find_lock_entry);
  * @mapping: the address_space to search
  * @offset: the page index
  * @fgp_flags: PCG flags
- * @gfp_mask: gfp mask to use if a page is to be allocated
+ * @cache_gfp_mask: gfp mask to use for the page cache data page allocation
+ * @radix_gfp_mask: gfp mask to use for radix tree node allocation
  *
  * Looks up the page cache slot at @mapping & @offset.
  *
- * PCG flags modify how the page is returned
+ * PCG flags modify how the page is returned.
  *
  * FGP_ACCESSED: the page will be marked accessed
  * FGP_LOCK: Page is return locked
  * FGP_CREAT: If page is not present then a new page is allocated using
- *		@gfp_mask and added to the page cache and the VM's LRU
- *		list. The page is returned locked and with an increased
- *		refcount. Otherwise, %NULL is returned.
+ *		@cache_gfp_mask and added to the page cache and the VM's LRU
+ *		list. If radix tree nodes are allocated during page cache
+ *		insertion then @radix_gfp_mask is used. The page is returned
+ * 		locked and with an increased refcount. Otherwise, %NULL is
+ * 		returned.
  *
  * If FGP_LOCK or FGP_CREAT are specified then the function may sleep even
  * if the GFP flags specified for FGP_CREAT are atomic.

-- 
Mel Gorman
SUSE Labs

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