From: Konstantin Khlebnikov <koct9i@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@linux.intel.com>, linux-mm@kvack.org
Subject: [PATCH 1/3] radix-tree: fix bug in radix_tree_iter_next() for tagged iteration
Date: Sat, 27 Feb 2016 14:42:44 +0300 [thread overview]
Message-ID: <145657336413.9016.2011291702664991604.stgit@zurg> (raw)
Helper radix_tree_iter_next reset slot to NULL and next_index to index + 1,
for tagger iteraction it also must reset cached tags in iterator to abort
next radix_tree_next_slot and go to slow-path into radix_tree_next_chunk.
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
---
include/linux/radix-tree.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index a59f940a54f5..51a97ac8bfbf 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -414,6 +414,7 @@ static inline __must_check
void **radix_tree_iter_next(struct radix_tree_iter *iter)
{
iter->next_index = iter->index + 1;
+ iter->tags = 0;
return NULL;
}
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next reply other threads:[~2016-02-27 11:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-27 11:42 Konstantin Khlebnikov [this message]
2016-02-27 11:42 ` [PATCH 2/3] radix-tree tests: fix compilation Konstantin Khlebnikov
2016-02-27 11:42 ` [PATCH 3/3] radix-tree tests: add test for radix_tree_iter_next Konstantin Khlebnikov
2016-02-29 0:15 ` [PATCH 1/3] radix-tree: fix bug in radix_tree_iter_next() for tagged iteration Hugh Dickins
2016-02-29 5:13 ` Konstantin Khlebnikov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=145657336413.9016.2011291702664991604.stgit@zurg \
--to=koct9i@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=linux-mm@kvack.org \
--cc=willy@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).