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Home » Mailing list archives » linux-kernel » 2007 » December » 5

[PATCH 23/28] AFS: Add TestSetPageError() [try #2]

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From: David Howells <dhowells@...>
To: <viro@...>, <hch@...>, <Trond.Myklebust@...>, <sds@...>, <casey@...>
Cc: <linux-kernel@...>, <selinux@...>, <linux-security-module@...>, <dhowells@...>
Subject: [PATCH 23/28] AFS: Add TestSetPageError() [try #2]
Date: Wednesday, December 5, 2007 - 3:40 pm

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 fcc9e23..0350c37 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -130,6 +130,7 @@
 #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)

--
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Messages in current thread:
[PATCH 00/28] Permit filesystem local caching [try #2], David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 28/28] FS-Cache: Make kAFS use FS-Cache [try #2], David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 27/28] AFS: Implement shared-writable mmap [try #2], David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 26/28] AF_RXRPC: Save the operation ID for debugging ..., David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 25/28] AFS: Improve handling of a rejected writeback ..., David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 24/28] AFS: Add a function to excise a rejected write..., David Howells, (Wed Dec 5, 3:40 pm)
Re: [PATCH 24/28] AFS: Add a function to excise a rejected w..., Nick Piggin, (Fri Dec 14, 12:21 am)
[PATCH 23/28] AFS: Add TestSetPageError() [try #2], David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 22/28] fcrypt endianness misannotations [try #2], David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 21/28] NFS: Display local caching state [try #2], David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 20/28] NFS: Configuration and mount option changes to..., David Howells, (Wed Dec 5, 3:40 pm)
[PATCH 19/28] NFS: Use local caching [try #2], David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 18/28] CacheFiles: A cache that backs onto a mounted ..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 17/28] CacheFiles: Export things for CacheFiles [try ..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 16/28] CacheFiles: Permit the page lock state to be m..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 15/28] CacheFiles: Add a hook to write a single page ..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 14/28] CacheFiles: Be consistent about the use of map..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 13/28] CacheFiles: Add missing copy_page export for i..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 12/28] FS-Cache: Generic filesystem caching facility ..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 11/28] FS-Cache: Provide an add_wait_queue_tail() fun..., David Howells, (Wed Dec 5, 3:39 pm)
[PATCH 10/28] FS-Cache: Recruit a couple of page flags for c..., David Howells, (Wed Dec 5, 3:39 pm)
Re: [PATCH 10/28] FS-Cache: Recruit a couple of page flags f..., Nick Piggin, (Fri Dec 14, 12:08 am)
[PATCH 09/28] FS-Cache: Release page-&gt;private after faile..., David Howells, (Wed Dec 5, 3:39 pm)
Re: [PATCH 09/28] FS-Cache: Release page-&gt;private after f..., Nick Piggin, (Thu Dec 13, 11:51 pm)
[PATCH 08/28] SECURITY: Allow kernel services to override LS..., David Howells, (Wed Dec 5, 3:38 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Mon Dec 10, 12:46 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Dec 10, 1:07 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Mon Dec 10, 1:23 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Jan 9, 12:51 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Jan 9, 2:11 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Jan 14, 10:01 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Jan 15, 10:56 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Tue Jan 15, 12:03 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Tue Jan 15, 2:10 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Jan 15, 3:15 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Tue Jan 15, 5:55 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Tue Jan 15, 6:23 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Jan 15, 12:08 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Mon Jan 14, 10:52 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Jan 14, 11:19 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Jan 14, 10:06 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Jan 15, 10:58 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Jan 23, 4:52 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., James Morris, (Wed Jan 23, 6:03 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Jan 9, 2:56 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Jan 9, 3:19 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Thu Jan 10, 7:09 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Jan 9, 1:27 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Dec 10, 5:08 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Mon Dec 10, 5:27 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Mon Dec 10, 6:26 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Dec 10, 7:44 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Mon Dec 10, 7:56 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Dec 11, 2:34 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Tue Dec 11, 3:26 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Dec 11, 3:56 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Tue Dec 11, 4:40 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Mon Dec 10, 7:36 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Mon Dec 10, 7:46 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Dec 11, 3:52 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Dec 11, 3:37 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Tue Dec 11, 4:42 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Tue Dec 11, 5:18 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Tue Dec 11, 5:34 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Tue Dec 11, 6:43 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Tue Dec 11, 7:04 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 2:25 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Wed Dec 12, 3:20 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Dec 12, 3:35 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 6:55 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Thu Dec 13, 10:51 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Thu Dec 13, 12:03 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 3:29 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Dec 12, 11:25 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Wed Dec 12, 12:51 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 2:34 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Wed Dec 12, 3:44 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 6:32 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Dec 12, 3:49 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Wed Dec 12, 4:09 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 6:29 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Dec 12, 2:12 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 2:29 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Casey Schaufler, (Wed Dec 12, 3:37 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 6:52 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Wed Dec 12, 3:33 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 6:49 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Thu Dec 13, 10:49 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Thu Dec 13, 11:36 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Thu Dec 13, 12:23 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Thu Dec 13, 1:01 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Stephen Smalley, (Thu Dec 13, 1:27 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Thu Dec 13, 2:04 pm)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Karl MacMillan, (Wed Dec 12, 10:41 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., David Howells, (Wed Dec 12, 10:53 am)
Re: [PATCH 08/28] SECURITY: Allow kernel services to overrid..., Karl MacMillan, (Wed Dec 12, 10:59 am)
[PATCH 07/28] SECURITY: De-embed task security record from t..., David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 06/28] SECURITY: Separate task security context from ..., David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 05/28] Security: Change current-&gt;fs[ug]id to curre..., David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 04/28] KEYS: Add keyctl function to get a security la..., David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 03/28] KEYS: Allow the callout data to be passed as a..., David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 02/28] KEYS: Check starting keyring as part of search..., David Howells, (Wed Dec 5, 3:38 pm)
[PATCH 01/28] KEYS: Increase the payload size when instantia..., David Howells, (Wed Dec 5, 3:38 pm)

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