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Re: linux-next: build failure after merge of the vfs tree

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[Just adding the origefs maintainer to the cc list]

On Thu, 10 Dec 2015 11:18:47 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Hi Al,
> 
> After merging the vfs tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> fs/orangefs/symlink.c:26:2: error: unknown field 'follow_link' specified in initializer
>   .follow_link = pvfs2_follow_link,
>   ^
> fs/orangefs/symlink.c:26:17: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
>   .follow_link = pvfs2_follow_link, 
>                  ^
> fs/orangefs/symlink.c:26:17: note: (near initialization for 'pvfs2_symlink_inode_operations.put_link')
> 
> Caused by commit
> 
>   6b2553918d8b ("replace ->follow_link() with new method that could stay in RCU mode")
> 
> [I wish there was some way to stage these API changes :-(]
> 
> I applied the following merge fix patch (which may need more work):
> 
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Thu, 10 Dec 2015 11:12:36 +1100
> Subject: [PATCH] orangfs: update for follow_link to get_link change
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
>  fs/orangefs/symlink.c | 12 +++++++++---
>  1 file changed, 9 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/orangefs/symlink.c b/fs/orangefs/symlink.c
> index 2adfceff7730..dbf24a98a3c9 100644
> --- a/fs/orangefs/symlink.c
> +++ b/fs/orangefs/symlink.c
> @@ -8,9 +8,15 @@
>  #include "pvfs2-kernel.h"
>  #include "pvfs2-bufmap.h"
>  
> -static const char *pvfs2_follow_link(struct dentry *dentry, void **cookie)
> +static const char *pvfs2_get_link(struct dentry *dentry, struct inode *inode,
> +				  void **cookie)
>  {
> -	char *target =  PVFS2_I(dentry->d_inode)->link_target;
> +	char *target;
> +
> +	if (!dentry)
> +		return ERR_PTR(-ECHILD);
> +
> +	target =  PVFS2_I(inode)->link_target;
>  
>  	gossip_debug(GOSSIP_INODE_DEBUG,
>  		     "%s: called on %s (target is %p)\n",
> @@ -23,7 +29,7 @@ static const char *pvfs2_follow_link(struct dentry *dentry, void **cookie)
>  
>  struct inode_operations pvfs2_symlink_inode_operations = {
>  	.readlink = generic_readlink,
> -	.follow_link = pvfs2_follow_link,
> +	.get_link = pvfs2_get_link,
>  	.setattr = pvfs2_setattr,
>  	.getattr = pvfs2_getattr,
>  	.listxattr = pvfs2_listxattr,
> -- 
> 2.6.2

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
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linux-next: build failure after merge of the vfs tree Stephen Rothwell <sfr@canb.auug.org.au> - 2015-12-10 01:20 +0100
  Re: linux-next: build failure after merge of the vfs tree Stephen Rothwell <sfr@canb.auug.org.au> - 2015-12-10 01:30 +0100
    Re: linux-next: build failure after merge of the vfs tree Al Viro <viro@ZenIV.linux.org.uk> - 2015-12-10 01:50 +0100
      Re: linux-next: build failure after merge of the vfs tree Mike Marshall <hubcap@omnibond.com> - 2015-12-10 16:50 +0100

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