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 <redacted>

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

quoted

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