linux-kernel - [PATCH] radix-tree: update the description for radix_tree_find_next

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Date:   Mon, 16 Mar 2020 11:02:16 +0800
From:   Qiujun Huang <hqjagain@...il.com>
To:     willy@...radead.org, gregkh@...uxfoundation.org
Cc:     tglx@...utronix.de, rfontana@...hat.com, armijn@...ldur.nl,
        linux-kernel@...r.kernel.org, Qiujun Huang <hqjagain@...il.com>
Subject: [PATCH] radix-tree: update the description for radix_tree_find_next_bit

The function changed at some point, but the description was not
updated.

Signed-off-by: Qiujun Huang <hqjagain@...il.com>
---
 lib/radix-tree.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index c8fa1d2..3791378 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -178,12 +178,11 @@ static inline void all_tag_set(struct radix_tree_node *node, unsigned int tag)
  * radix_tree_find_next_bit - find the next set bit in a memory region
  *
  * @addr: The address to base the search on
- * @size: The bitmap size in bits
+ * @tag: The tag index (< RADIX_TREE_MAX_TAGS)
  * @offset: The bitnumber to start searching at
  *
  * Unrollable variant of find_next_bit() for constant size arrays.
- * Tail bits starting from size to roundup(size, BITS_PER_LONG) must be zero.
- * Returns next bit offset, or size if nothing found.
+ * Returns next bit offset, or RADIX_TREE_MAP_SIZE if nothing found.
  */
 static __always_inline unsigned long
 radix_tree_find_next_bit(struct radix_tree_node *node, unsigned int tag,
-- 
1.8.3.1