2012-04-03 09:48:48

by Artem Bityutskiy

[permalink] [raw]
Subject: [PATCH] ext2: do not register write_super within VFS

From: Artem Bityutskiy <[email protected]>

Jan Kara removed 'sb->s_dirt' VFS flag references, so we do not need to
register the ext2 'ext2_write_super()' method in the VFS superblock operations,
because 'sb->s_dirt' won't be ever set to 1 and VFS won't ever call
'->write_super()' anyway. Thus, remove the method.

Tested using xfstests.

Signed-off-by: Artem Bityutskiy <[email protected]>
---
fs/ext2/super.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index a43f9ad..e0e8f45 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -302,7 +302,6 @@ static const struct super_operations ext2_sops = {
.write_inode = ext2_write_inode,
.evict_inode = ext2_evict_inode,
.put_super = ext2_put_super,
- .write_super = ext2_write_super,
.sync_fs = ext2_sync_fs,
.statfs = ext2_statfs,
.remount_fs = ext2_remount,
--
1.7.7.6



2012-04-03 22:36:35

by Jan Kara

[permalink] [raw]
Subject: Re: [PATCH] ext2: do not register write_super within VFS

On Tue 03-04-12 12:49:18, Artem Bityutskiy wrote:
> From: Artem Bityutskiy <[email protected]>
>
> Jan Kara removed 'sb->s_dirt' VFS flag references, so we do not need to
> register the ext2 'ext2_write_super()' method in the VFS superblock operations,
> because 'sb->s_dirt' won't be ever set to 1 and VFS won't ever call
> '->write_super()' anyway. Thus, remove the method.
>
> Tested using xfstests.
>
> Signed-off-by: Artem Bityutskiy <[email protected]>
Thanks. Added to my tree.

Honza

> ---
> fs/ext2/super.c | 1 -
> 1 files changed, 0 insertions(+), 1 deletions(-)
>
> diff --git a/fs/ext2/super.c b/fs/ext2/super.c
> index a43f9ad..e0e8f45 100644
> --- a/fs/ext2/super.c
> +++ b/fs/ext2/super.c
> @@ -302,7 +302,6 @@ static const struct super_operations ext2_sops = {
> .write_inode = ext2_write_inode,
> .evict_inode = ext2_evict_inode,
> .put_super = ext2_put_super,
> - .write_super = ext2_write_super,
> .sync_fs = ext2_sync_fs,
> .statfs = ext2_statfs,
> .remount_fs = ext2_remount,
> --
> 1.7.7.6
>
--
Jan Kara <[email protected]>
SUSE Labs, CR

2012-04-11 11:21:50

by Artem Bityutskiy

[permalink] [raw]
Subject: Re: [PATCH] ext2: do not register write_super within VFS

On Wed, 2012-04-04 at 00:36 +0200, Jan Kara wrote:
> On Tue 03-04-12 12:49:18, Artem Bityutskiy wrote:
> > From: Artem Bityutskiy <[email protected]>
> >
> > Jan Kara removed 'sb->s_dirt' VFS flag references, so we do not need to
> > register the ext2 'ext2_write_super()' method in the VFS superblock operations,
> > because 'sb->s_dirt' won't be ever set to 1 and VFS won't ever call
> > '->write_super()' anyway. Thus, remove the method.
> >
> > Tested using xfstests.
> >
> > Signed-off-by: Artem Bityutskiy <[email protected]>
> Thanks. Added to my tree.

Jan, I do not see this patch in 'for_next' of your tree.

--
Best Regards,
Artem Bityutskiy


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2012-04-11 15:31:01

by Jan Kara

[permalink] [raw]
Subject: Re: [PATCH] ext2: do not register write_super within VFS

On Wed 11-04-12 14:24:34, Artem Bityutskiy wrote:
> On Wed, 2012-04-04 at 00:36 +0200, Jan Kara wrote:
> > On Tue 03-04-12 12:49:18, Artem Bityutskiy wrote:
> > > From: Artem Bityutskiy <[email protected]>
> > >
> > > Jan Kara removed 'sb->s_dirt' VFS flag references, so we do not need to
> > > register the ext2 'ext2_write_super()' method in the VFS superblock operations,
> > > because 'sb->s_dirt' won't be ever set to 1 and VFS won't ever call
> > > '->write_super()' anyway. Thus, remove the method.
> > >
> > > Tested using xfstests.
> > >
> > > Signed-off-by: Artem Bityutskiy <[email protected]>
> > Thanks. Added to my tree.
>
> Jan, I do not see this patch in 'for_next' of your tree.
Yeah, it's not. So far it was in my for_next_testing and for_testing
branches. Once the branch (for_testing) passes some compile tests (done)
and runtime tests with xfstests I will update for_next branch to include
the patch as well. Because merge window is far, I don't hurry with that
very much. But if it causes problems for you I can run the tests and update
for_next tonight or tomorrow.
Honza
--
Jan Kara <[email protected]>
SUSE Labs, CR

2012-04-11 15:37:48

by Artem Bityutskiy

[permalink] [raw]
Subject: Re: [PATCH] ext2: do not register write_super within VFS

On Wed, 2012-04-11 at 17:30 +0200, Jan Kara wrote:
> Yeah, it's not. So far it was in my for_next_testing and for_testing
> branches. Once the branch (for_testing) passes some compile tests (done)
> and runtime tests with xfstests I will update for_next branch to include
> the patch as well. Because merge window is far, I don't hurry with that
> very much. But if it causes problems for you I can run the tests and update
> for_next tonight or tomorrow.

I see, thanks. No, I do not have any hurry - I have it in my local tree.

--
Best Regards,
Artem Bityutskiy


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