On Thu, Sep 15, 2016 at 02:54:49PM +0300, Kirill A. Shutemov wrote:
> We would need to use multi-order radix-tree entires for ext4 and other
> filesystems to have coherent view on tags (dirty/towrite) in the tree.
> 
> This patch converts huge tmpfs implementation to multi-order entries, so
> we will be able to use the same code patch for all filesystems.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com>

0-DAY reported this:

reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   lib/crc32.c:148: warning: No description found for parameter 'tab)[256]'
   lib/crc32.c:148: warning: Excess function parameter 'tab' description in 
'crc32_le_generic'
   lib/crc32.c:293: warning: No description found for parameter 'tab)[256]'
   lib/crc32.c:293: warning: Excess function parameter 'tab' description in 
'crc32_be_generic'
   lib/crc32.c:1: warning: no structured comments found
>> mm/filemap.c:1434: warning: No description found for parameter 'start'
>> mm/filemap.c:1434: warning: Excess function parameter 'index' description in 
>> 'find_get_pages_contig'
>> mm/filemap.c:1525: warning: No description found for parameter 'indexp'
>> mm/filemap.c:1525: warning: Excess function parameter 'index' description in 
>> 'find_get_pages_tag'

The fixup:

diff --git a/mm/filemap.c b/mm/filemap.c
index c69b1204744a..1ef20dd45b6b 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1548,7 +1548,7 @@ repeat:
 /**
  * find_get_pages_contig - gang contiguous pagecache lookup
  * @mapping:   The address_space to search
- * @index:     The starting page index
+ * @start:     The starting page index
  * @nr_pages:  The maximum number of pages
  * @pages:     Where the resulting pages are placed
  *
@@ -1641,7 +1641,7 @@ EXPORT_SYMBOL(find_get_pages_contig);
 /**
  * find_get_pages_tag - find and return pages that match @tag
  * @mapping:   the address_space to search
- * @index:     the starting page index
+ * @indexp:    the starting page index
  * @tag:       the tag index
  * @nr_pages:  the maximum number of pages
  * @pages:     where the resulting pages are placed
-- 
 Kirill A. Shutemov
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