All of lore.kernel.org
 help / color / mirror / Atom feed
From: Christoph Hellwig <hch@lst.de>
To: linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org,
	linux-block@vger.kernel.org
Subject: [PATCH 01/12] uapi/fs: add O_ATOMIC to the open flags
Date: Tue, 28 Feb 2017 06:57:26 -0800	[thread overview]
Message-ID: <20170228145737.19016-2-hch@lst.de> (raw)
In-Reply-To: <20170228145737.19016-1-hch@lst.de>

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/fcntl.c                       | 3 ++-
 include/uapi/asm-generic/fcntl.h | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/fcntl.c b/fs/fcntl.c
index e1c54f20325c..ca5d228be7ea 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -741,7 +741,7 @@ static int __init fcntl_init(void)
 	 * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY
 	 * is defined as O_NONBLOCK on some platforms and not on others.
 	 */
-	BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
+	BUILD_BUG_ON(22 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
 		O_RDONLY	| O_WRONLY	| O_RDWR	|
 		O_CREAT		| O_EXCL	| O_NOCTTY	|
 		O_TRUNC		| O_APPEND	| /* O_NONBLOCK	| */
@@ -749,6 +749,7 @@ static int __init fcntl_init(void)
 		O_DIRECT	| O_LARGEFILE	| O_DIRECTORY	|
 		O_NOFOLLOW	| O_NOATIME	| O_CLOEXEC	|
 		__FMODE_EXEC	| O_PATH	| __O_TMPFILE	|
+		O_ATOMIC	|
 		__FMODE_NONOTIFY
 		));
 
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index e063effe0cc1..26ab7622238a 100644
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -92,6 +92,8 @@
 #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
 #define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT)      
 
+#define O_ATOMIC	040000000
+
 #ifndef O_NDELAY
 #define O_NDELAY	O_NONBLOCK
 #endif
-- 
2.11.0

  reply	other threads:[~2017-02-28 14:57 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-28 14:57 [RFC] failure atomic writes for file systems and block devices Christoph Hellwig
2017-02-28 14:57 ` Christoph Hellwig [this message]
2017-02-28 14:57 ` [PATCH 02/12] iomap: pass IOMAP_* flags to actors Christoph Hellwig
2017-02-28 14:57 ` [PATCH 03/12] iomap: add a IOMAP_ATOMIC flag Christoph Hellwig
2017-02-28 14:57 ` [PATCH 04/12] fs: add a BH_Atomic flag Christoph Hellwig
2017-02-28 14:57 ` [PATCH 05/12] fs: add a F_IOINFO fcntl Christoph Hellwig
2017-02-28 16:51   ` Darrick J. Wong
2017-03-01 15:11     ` Christoph Hellwig
2017-02-28 14:57 ` [PATCH 06/12] xfs: cleanup is_reflink checks Christoph Hellwig
2017-02-28 14:57 ` [PATCH 07/12] xfs: implement failure-atomic writes Christoph Hellwig
2017-02-28 23:09   ` Darrick J. Wong
2017-03-01 15:17     ` Christoph Hellwig
2017-02-28 14:57 ` [PATCH 08/12] xfs: implement the F_IOINFO fcntl Christoph Hellwig
2017-02-28 14:57 ` [PATCH 09/12] block: advertize max atomic write limit Christoph Hellwig
2017-02-28 14:57 ` [PATCH 10/12] block_dev: set REQ_NOMERGE for O_ATOMIC writes Christoph Hellwig
2017-02-28 14:57 ` [PATCH 11/12] block_dev: implement the F_IOINFO fcntl Christoph Hellwig
2017-02-28 14:57 ` [PATCH 12/12] nvme: export the atomic write limit Christoph Hellwig
2017-02-28 20:48 ` [RFC] failure atomic writes for file systems and block devices Chris Mason
2017-02-28 20:48   ` Chris Mason
2017-03-01 15:07   ` Christoph Hellwig
2017-02-28 23:22 ` Darrick J. Wong
2017-03-01 15:09   ` Christoph Hellwig
2017-03-01 11:21 ` Amir Goldstein
2017-03-01 15:07   ` Christoph Hellwig
2017-03-01 15:07     ` Christoph Hellwig

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=20170228145737.19016-2-hch@lst.de \
    --to=hch@lst.de \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-xfs@vger.kernel.org \
    --subject='Re: [PATCH 01/12] uapi/fs: add O_ATOMIC to the open flags' \
    /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

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.