linux-kernel - Re: linux-next: manual merge of the ext3 tree with the cifs tree

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Date:	Wed, 25 Nov 2009 09:50:06 +0100
From:	Jan Kara <jack@...e.cz>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@....de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steve French <sfrench@...ibm.com>,
	Jeff Layton <jlayton@...hat.com>
Subject: Re: linux-next: manual merge of the ext3 tree with the cifs tree

  Hi,

On Wed 25-11-09 14:06:26, Stephen Rothwell wrote:
> Today's linux-next merge of the ext3 tree got a conflict in fs/cifs/dir.c
> between commit cea62343956c24452700c06cf028b72414c58a74 ("[CIFS]
> Duplicate data on appending to some Samba servers") from the cifs tree
> and commit 618903228b94b67a1d04634a83ea9cdb99c09e37 ("vfs: Implement
> proper O_SYNC semantics") from the ext3 tree.
  Thanks for notification and fixup.

> Just context changes.  I fixed it up (see below) and can carry the fix as
> necessary.
  Looking at the code, I don't see an easy way of resolving this by changing
either mine or CIFS tree - I have other patches depending on this and this
patch depending on others and I assume it's similar with CIFS... So I guess
we'll have to live with this conflict.

								Honza


> diff --cc fs/cifs/dir.c
> index 1f42f77,f1fe5cb..0000000
> --- a/fs/cifs/dir.c
> +++ b/fs/cifs/dir.c
> @@@ -214,7 -214,10 +214,8 @@@ int cifs_posix_open(char *full_path, st
>   		posix_flags |= SMB_O_EXCL;
>   	if (oflags & O_TRUNC)
>   		posix_flags |= SMB_O_TRUNC;
> - 	if (oflags & O_SYNC)
>  -	if (oflags & O_APPEND)
>  -		posix_flags |= SMB_O_APPEND;
> + 	/* be safe and imply O_SYNC for O_DSYNC */
> + 	if (oflags & O_DSYNC)
>   		posix_flags |= SMB_O_SYNC;
>   	if (oflags & O_DIRECTORY)
>   		posix_flags |= SMB_O_DIRECTORY;
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