From: David Howells <dhowells@redhat.com>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org, dhowells@redhat.com
Subject: [PATCH 1/4] AFS: Add TestSetPageError()
Date: Wed, 23 May 2007 20:15:19 +0100 [thread overview]
Message-ID: <20070523191518.24135.81257.stgit@warthog.cambridge.redhat.com> (raw)
Add a TestSetPageError() macro to the suite of page flag manipulators. This
can be used by AFS to prevent over-excision of rejected writes from the page
cache.
Signed-off-by: David Howells <dhowells@redhat.com>
---
include/linux/page-flags.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index ae2d79f..cc8d952 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -121,6 +121,7 @@
#define PageError(page) test_bit(PG_error, &(page)->flags)
#define SetPageError(page) set_bit(PG_error, &(page)->flags)
#define ClearPageError(page) clear_bit(PG_error, &(page)->flags)
+#define TestSetPageError(page) test_and_set_bit(PG_error, &(page)->flags)
#define PageReferenced(page) test_bit(PG_referenced, &(page)->flags)
#define SetPageReferenced(page) set_bit(PG_referenced, &(page)->flags)
next reply other threads:[~2007-05-23 19:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-23 19:15 David Howells [this message]
2007-05-23 19:15 ` [PATCH 2/4] AFS: Add a function to excise a rejected write from the pagecache David Howells
2007-05-24 20:38 ` Andrew Morton
2007-05-24 21:35 ` David Howells
2007-05-24 21:47 ` Andrew Morton
2007-05-24 22:34 ` David Howells
2007-05-24 22:46 ` Andrew Morton
2007-05-24 23:08 ` David Howells
2007-05-24 23:24 ` Andrew Morton
2007-05-24 23:37 ` David Howells
2007-05-24 22:35 ` Trond Myklebust
2007-05-24 23:18 ` David Howells
2007-05-24 23:54 ` Trond Myklebust
2007-05-30 10:35 ` David Howells
2007-05-30 17:39 ` Trond Myklebust
2007-05-23 19:15 ` [PATCH 3/4] AFS: Improve handling of a rejected writeback David Howells
2007-05-23 19:15 ` [PATCH 4/4] AFS: Implement shared-writable mmap David Howells
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