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* [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
@ 2019-11-06  5:58 Amir Goldstein
  2019-11-06 16:01 ` Darrick J. Wong
  2019-11-08  6:50 ` Darrick J. Wong
  0 siblings, 2 replies; 9+ messages in thread
From: Amir Goldstein @ 2019-11-06  5:58 UTC (permalink / raw)
  To: Eric Sandeen; +Cc: Darrick J . Wong, linux-xfs

For efficient check if file has xattrs.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
 io/attr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/io/attr.c b/io/attr.c
index b713d017..ba88ef16 100644
--- a/io/attr.c
+++ b/io/attr.c
@@ -37,6 +37,7 @@ static struct xflags {
 	{ FS_XFLAG_FILESTREAM,		"S", "filestream"	},
 	{ FS_XFLAG_DAX,			"x", "dax"		},
 	{ FS_XFLAG_COWEXTSIZE,		"C", "cowextsize"	},
+	{ FS_XFLAG_HASATTR,		"X", "has-xattr"	},
 	{ 0, NULL, NULL }
 };
 #define CHATTR_XFLAG_LIST	"r"/*p*/"iasAdtPneEfSxC"
@@ -65,6 +66,7 @@ lsattr_help(void)
 " S -- enable filestreams allocator for this directory\n"
 " x -- Use direct access (DAX) for data in this file\n"
 " C -- for files with shared blocks, observe the inode CoW extent size value\n"
+" X -- file has extended attributes (cannot be changed using chattr)\n"
 "\n"
 " Options:\n"
 " -R -- recursively descend (useful when current file is a directory)\n"
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06  5:58 [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag Amir Goldstein
@ 2019-11-06 16:01 ` Darrick J. Wong
  2019-11-06 18:29   ` Amir Goldstein
  2019-11-08  6:50 ` Darrick J. Wong
  1 sibling, 1 reply; 9+ messages in thread
From: Darrick J. Wong @ 2019-11-06 16:01 UTC (permalink / raw)
  To: Amir Goldstein; +Cc: Eric Sandeen, linux-xfs

On Wed, Nov 06, 2019 at 07:58:55AM +0200, Amir Goldstein wrote:
> For efficient check if file has xattrs.
> 
> Signed-off-by: Amir Goldstein <amir73il@gmail.com>
> ---
>  io/attr.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/io/attr.c b/io/attr.c
> index b713d017..ba88ef16 100644
> --- a/io/attr.c
> +++ b/io/attr.c
> @@ -37,6 +37,7 @@ static struct xflags {
>  	{ FS_XFLAG_FILESTREAM,		"S", "filestream"	},
>  	{ FS_XFLAG_DAX,			"x", "dax"		},
>  	{ FS_XFLAG_COWEXTSIZE,		"C", "cowextsize"	},
> +	{ FS_XFLAG_HASATTR,		"X", "has-xattr"	},
>  	{ 0, NULL, NULL }
>  };
>  #define CHATTR_XFLAG_LIST	"r"/*p*/"iasAdtPneEfSxC"

/me wonders if this should have /*X*/ commented out the same way we do
for "p".

Otherwise, the patch looks ok to me...

/me *also* wonders how many filesystems fail to implement this flag but
support xattrs.

Oh.  All of them.  Though I assume overlayfs is being patched... :)

--D

> @@ -65,6 +66,7 @@ lsattr_help(void)
>  " S -- enable filestreams allocator for this directory\n"
>  " x -- Use direct access (DAX) for data in this file\n"
>  " C -- for files with shared blocks, observe the inode CoW extent size value\n"
> +" X -- file has extended attributes (cannot be changed using chattr)\n"
>  "\n"
>  " Options:\n"
>  " -R -- recursively descend (useful when current file is a directory)\n"
> -- 
> 2.17.1
> 

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06 16:01 ` Darrick J. Wong
@ 2019-11-06 18:29   ` Amir Goldstein
  2019-11-06 18:45     ` Eric Sandeen
  0 siblings, 1 reply; 9+ messages in thread
From: Amir Goldstein @ 2019-11-06 18:29 UTC (permalink / raw)
  To: Darrick J. Wong; +Cc: Eric Sandeen, linux-xfs

On Wed, Nov 6, 2019 at 6:03 PM Darrick J. Wong <darrick.wong@oracle.com> wrote:
>
> On Wed, Nov 06, 2019 at 07:58:55AM +0200, Amir Goldstein wrote:
> > For efficient check if file has xattrs.
> >
> > Signed-off-by: Amir Goldstein <amir73il@gmail.com>
> > ---
> >  io/attr.c | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/io/attr.c b/io/attr.c
> > index b713d017..ba88ef16 100644
> > --- a/io/attr.c
> > +++ b/io/attr.c
> > @@ -37,6 +37,7 @@ static struct xflags {
> >       { FS_XFLAG_FILESTREAM,          "S", "filestream"       },
> >       { FS_XFLAG_DAX,                 "x", "dax"              },
> >       { FS_XFLAG_COWEXTSIZE,          "C", "cowextsize"       },
> > +     { FS_XFLAG_HASATTR,             "X", "has-xattr"        },
> >       { 0, NULL, NULL }
> >  };
> >  #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"
>
> /me wonders if this should have /*X*/ commented out the same way we do
> for "p".

Sure. Eric, please let me know if you want a re-submit for this.

>
> Otherwise, the patch looks ok to me...
>
> /me *also* wonders how many filesystems fail to implement this flag but
> support xattrs.
>
> Oh.  All of them.  Though I assume overlayfs is being patched... :)
>

It doesn't need to be patched. It doesn't have xattr storage of its own.
The ioctl is passed down to the underlying fs (*).
(*) The ioctl is currently blocked on overlayfs directories.

Thanks,
Amir.

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06 18:29   ` Amir Goldstein
@ 2019-11-06 18:45     ` Eric Sandeen
  2019-11-06 18:52       ` Darrick J. Wong
  0 siblings, 1 reply; 9+ messages in thread
From: Eric Sandeen @ 2019-11-06 18:45 UTC (permalink / raw)
  To: Amir Goldstein, Darrick J. Wong; +Cc: linux-xfs

On 11/6/19 12:29 PM, Amir Goldstein wrote:
> On Wed, Nov 6, 2019 at 6:03 PM Darrick J. Wong <darrick.wong@oracle.com> wrote:
>>
>> On Wed, Nov 06, 2019 at 07:58:55AM +0200, Amir Goldstein wrote:
>>> For efficient check if file has xattrs.
>>>
>>> Signed-off-by: Amir Goldstein <amir73il@gmail.com>
>>> ---
>>>  io/attr.c | 2 ++
>>>  1 file changed, 2 insertions(+)
>>>
>>> diff --git a/io/attr.c b/io/attr.c
>>> index b713d017..ba88ef16 100644
>>> --- a/io/attr.c
>>> +++ b/io/attr.c
>>> @@ -37,6 +37,7 @@ static struct xflags {
>>>       { FS_XFLAG_FILESTREAM,          "S", "filestream"       },
>>>       { FS_XFLAG_DAX,                 "x", "dax"              },
>>>       { FS_XFLAG_COWEXTSIZE,          "C", "cowextsize"       },
>>> +     { FS_XFLAG_HASATTR,             "X", "has-xattr"        },
>>>       { 0, NULL, NULL }
>>>  };
>>>  #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"
>>
>> /me wonders if this should have /*X*/ commented out the same way we do
>> for "p".
> 
> Sure. Eric, please let me know if you want a re-submit for this.

Ummm I'll just stage it now and add it so I don't forget

like:

#define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfS"/*X*/"xC"

that, right?

>>
>> Otherwise, the patch looks ok to me...
>>
>> /me *also* wonders how many filesystems fail to implement this flag but
>> support xattrs.
>>
>> Oh.  All of them.  Though I assume overlayfs is being patched... :)
>>
> 
> It doesn't need to be patched. It doesn't have xattr storage of its own.
> The ioctl is passed down to the underlying fs (*).
> (*) The ioctl is currently blocked on overlayfs directories.
> 
> Thanks,
> Amir.
> 

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06 18:45     ` Eric Sandeen
@ 2019-11-06 18:52       ` Darrick J. Wong
  2019-11-06 18:53         ` Eric Sandeen
  0 siblings, 1 reply; 9+ messages in thread
From: Darrick J. Wong @ 2019-11-06 18:52 UTC (permalink / raw)
  To: Eric Sandeen; +Cc: Amir Goldstein, linux-xfs

On Wed, Nov 06, 2019 at 12:45:55PM -0600, Eric Sandeen wrote:
> On 11/6/19 12:29 PM, Amir Goldstein wrote:
> > On Wed, Nov 6, 2019 at 6:03 PM Darrick J. Wong <darrick.wong@oracle.com> wrote:
> >>
> >> On Wed, Nov 06, 2019 at 07:58:55AM +0200, Amir Goldstein wrote:
> >>> For efficient check if file has xattrs.
> >>>
> >>> Signed-off-by: Amir Goldstein <amir73il@gmail.com>
> >>> ---
> >>>  io/attr.c | 2 ++
> >>>  1 file changed, 2 insertions(+)
> >>>
> >>> diff --git a/io/attr.c b/io/attr.c
> >>> index b713d017..ba88ef16 100644
> >>> --- a/io/attr.c
> >>> +++ b/io/attr.c
> >>> @@ -37,6 +37,7 @@ static struct xflags {
> >>>       { FS_XFLAG_FILESTREAM,          "S", "filestream"       },
> >>>       { FS_XFLAG_DAX,                 "x", "dax"              },
> >>>       { FS_XFLAG_COWEXTSIZE,          "C", "cowextsize"       },
> >>> +     { FS_XFLAG_HASATTR,             "X", "has-xattr"        },
> >>>       { 0, NULL, NULL }
> >>>  };
> >>>  #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"
> >>
> >> /me wonders if this should have /*X*/ commented out the same way we do
> >> for "p".
> > 
> > Sure. Eric, please let me know if you want a re-submit for this.
> 
> Ummm I'll just stage it now and add it so I don't forget
> 
> like:
> 
> #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfS"/*X*/"xC"
> 
> that, right?

Right.

--D

> >>
> >> Otherwise, the patch looks ok to me...
> >>
> >> /me *also* wonders how many filesystems fail to implement this flag but
> >> support xattrs.
> >>
> >> Oh.  All of them.  Though I assume overlayfs is being patched... :)
> >>
> > 
> > It doesn't need to be patched. It doesn't have xattr storage of its own.
> > The ioctl is passed down to the underlying fs (*).
> > (*) The ioctl is currently blocked on overlayfs directories.
> > 
> > Thanks,
> > Amir.
> > 

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06 18:52       ` Darrick J. Wong
@ 2019-11-06 18:53         ` Eric Sandeen
  2019-11-06 19:07           ` Darrick J. Wong
  0 siblings, 1 reply; 9+ messages in thread
From: Eric Sandeen @ 2019-11-06 18:53 UTC (permalink / raw)
  To: Darrick J. Wong; +Cc: Amir Goldstein, linux-xfs



On 11/6/19 12:52 PM, Darrick J. Wong wrote:
> On Wed, Nov 06, 2019 at 12:45:55PM -0600, Eric Sandeen wrote:
>> On 11/6/19 12:29 PM, Amir Goldstein wrote:

>>>>>  #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"
>>>>
>>>> /me wonders if this should have /*X*/ commented out the same way we do
>>>> for "p".
>>>
>>> Sure. Eric, please let me know if you want a re-submit for this.
>>
>> Ummm I'll just stage it now and add it so I don't forget
>>
>> like:
>>
>> #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfS"/*X*/"xC"
>>
>> that, right?
> 
> Right.


Actually for consistent ordering w/ the array, I guess maybe

#define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"/*X*/

Thanks

-Eric

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06 18:53         ` Eric Sandeen
@ 2019-11-06 19:07           ` Darrick J. Wong
  0 siblings, 0 replies; 9+ messages in thread
From: Darrick J. Wong @ 2019-11-06 19:07 UTC (permalink / raw)
  To: Eric Sandeen; +Cc: Amir Goldstein, linux-xfs

On Wed, Nov 06, 2019 at 12:53:46PM -0600, Eric Sandeen wrote:
> 
> 
> On 11/6/19 12:52 PM, Darrick J. Wong wrote:
> > On Wed, Nov 06, 2019 at 12:45:55PM -0600, Eric Sandeen wrote:
> >> On 11/6/19 12:29 PM, Amir Goldstein wrote:
> 
> >>>>>  #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"
> >>>>
> >>>> /me wonders if this should have /*X*/ commented out the same way we do
> >>>> for "p".
> >>>
> >>> Sure. Eric, please let me know if you want a re-submit for this.
> >>
> >> Ummm I'll just stage it now and add it so I don't forget
> >>
> >> like:
> >>
> >> #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfS"/*X*/"xC"
> >>
> >> that, right?
> > 
> > Right.
> 
> 
> Actually for consistent ordering w/ the array, I guess maybe
> 
> #define CHATTR_XFLAG_LIST    "r"/*p*/"iasAdtPneEfSxC"/*X*/

Sure.  /me is done beating this hoss.
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> Thanks
> 
> -Eric

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-06  5:58 [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag Amir Goldstein
  2019-11-06 16:01 ` Darrick J. Wong
@ 2019-11-08  6:50 ` Darrick J. Wong
  2019-11-08 13:39   ` Eric Sandeen
  1 sibling, 1 reply; 9+ messages in thread
From: Darrick J. Wong @ 2019-11-08  6:50 UTC (permalink / raw)
  To: Amir Goldstein; +Cc: Eric Sandeen, linux-xfs

On Wed, Nov 06, 2019 at 07:58:55AM +0200, Amir Goldstein wrote:
> For efficient check if file has xattrs.
> 
> Signed-off-by: Amir Goldstein <amir73il@gmail.com>
> ---
>  io/attr.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/io/attr.c b/io/attr.c
> index b713d017..ba88ef16 100644
> --- a/io/attr.c
> +++ b/io/attr.c
> @@ -37,6 +37,7 @@ static struct xflags {
>  	{ FS_XFLAG_FILESTREAM,		"S", "filestream"	},
>  	{ FS_XFLAG_DAX,			"x", "dax"		},
>  	{ FS_XFLAG_COWEXTSIZE,		"C", "cowextsize"	},
> +	{ FS_XFLAG_HASATTR,		"X", "has-xattr"	},

This causes an xfs/207 regression on the extra letter in the output; can
you please fix that?

--D

>  	{ 0, NULL, NULL }
>  };
>  #define CHATTR_XFLAG_LIST	"r"/*p*/"iasAdtPneEfSxC"
> @@ -65,6 +66,7 @@ lsattr_help(void)
>  " S -- enable filestreams allocator for this directory\n"
>  " x -- Use direct access (DAX) for data in this file\n"
>  " C -- for files with shared blocks, observe the inode CoW extent size value\n"
> +" X -- file has extended attributes (cannot be changed using chattr)\n"
>  "\n"
>  " Options:\n"
>  " -R -- recursively descend (useful when current file is a directory)\n"
> -- 
> 2.17.1
> 

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag
  2019-11-08  6:50 ` Darrick J. Wong
@ 2019-11-08 13:39   ` Eric Sandeen
  0 siblings, 0 replies; 9+ messages in thread
From: Eric Sandeen @ 2019-11-08 13:39 UTC (permalink / raw)
  To: Darrick J. Wong, Amir Goldstein; +Cc: linux-xfs

On 11/8/19 12:50 AM, Darrick J. Wong wrote:
> On Wed, Nov 06, 2019 at 07:58:55AM +0200, Amir Goldstein wrote:
>> For efficient check if file has xattrs.
>>
>> Signed-off-by: Amir Goldstein <amir73il@gmail.com>
>> ---
>>  io/attr.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/io/attr.c b/io/attr.c
>> index b713d017..ba88ef16 100644
>> --- a/io/attr.c
>> +++ b/io/attr.c
>> @@ -37,6 +37,7 @@ static struct xflags {
>>  	{ FS_XFLAG_FILESTREAM,		"S", "filestream"	},
>>  	{ FS_XFLAG_DAX,			"x", "dax"		},
>>  	{ FS_XFLAG_COWEXTSIZE,		"C", "cowextsize"	},
>> +	{ FS_XFLAG_HASATTR,		"X", "has-xattr"	},
> 
> This causes an xfs/207 regression on the extra letter in the output; can
> you please fix that?

I sent [PATCH] xfs/207: explicitly test for xflag character 

but forgot to cc xfs list.  it's on the fstests list, sorry!

-Eric

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2019-11-08 13:39 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-06  5:58 [PATCH] xfs_io/lsattr: expose FS_XFLAG_HASATTR flag Amir Goldstein
2019-11-06 16:01 ` Darrick J. Wong
2019-11-06 18:29   ` Amir Goldstein
2019-11-06 18:45     ` Eric Sandeen
2019-11-06 18:52       ` Darrick J. Wong
2019-11-06 18:53         ` Eric Sandeen
2019-11-06 19:07           ` Darrick J. Wong
2019-11-08  6:50 ` Darrick J. Wong
2019-11-08 13:39   ` Eric Sandeen

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