| Message ID | 20201020082201.34257-1-tian.xianting@h3c.com |
|---|---|
| State | Awaiting Upstream |
| Headers | show |
| Series | ext4: remove the null check of bio_vec page | expand |
On Tue 20-10-20 16:22:01, Xianting Tian wrote: > bv_page can't be NULL in a valid bio_vec, so we can remove the NULL check, > as we did in other places when calling bio_for_each_segment_all() to go > through all bio_vec of a bio. > > Signed-off-by: Xianting Tian <tian.xianting@h3c.com> Thanks for the patch. It looks good to me. You can add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > fs/ext4/page-io.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c > index defd2e10d..cb135a944 100644 > --- a/fs/ext4/page-io.c > +++ b/fs/ext4/page-io.c > @@ -111,9 +111,6 @@ static void ext4_finish_bio(struct bio *bio) > unsigned under_io = 0; > unsigned long flags; > > - if (!page) > - continue; > - > if (fscrypt_is_bounce_page(page)) { > bounce_page = page; > page = fscrypt_pagecache_page(bounce_page); > -- > 2.17.1 >
Thanks Jan Can be the patch applied? -----Original Message----- From: Jan Kara [mailto:jack@suse.cz] Sent: Wednesday, October 21, 2020 6:25 PM To: tianxianting (RD) <tian.xianting@h3c.com> Cc: tytso@mit.edu; adilger.kernel@dilger.ca; jack@suse.cz; linux-ext4@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH] ext4: remove the null check of bio_vec page On Tue 20-10-20 16:22:01, Xianting Tian wrote: > bv_page can't be NULL in a valid bio_vec, so we can remove the NULL > check, as we did in other places when calling > bio_for_each_segment_all() to go through all bio_vec of a bio. > > Signed-off-by: Xianting Tian <tian.xianting@h3c.com> Thanks for the patch. It looks good to me. You can add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > fs/ext4/page-io.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index > defd2e10d..cb135a944 100644 > --- a/fs/ext4/page-io.c > +++ b/fs/ext4/page-io.c > @@ -111,9 +111,6 @@ static void ext4_finish_bio(struct bio *bio) > unsigned under_io = 0; > unsigned long flags; > > - if (!page) > - continue; > - > if (fscrypt_is_bounce_page(page)) { > bounce_page = page; > page = fscrypt_pagecache_page(bounce_page); > -- > 2.17.1 > -- Jan Kara <jack@suse.com> SUSE Labs, CR
On Fri 23-10-20 16:38:16, Tianxianting wrote: > Thanks Jan > Can be the patch applied? Ted Tso is the ext4 maintainer so he should eventually pick up and apply the patch. But since there's merge window currently open, I guess he's busy shuffling patches to send to Linus. I'd expect he'll get to your patch in a week or two. Honza > > -----Original Message----- > From: Jan Kara [mailto:jack@suse.cz] > Sent: Wednesday, October 21, 2020 6:25 PM > To: tianxianting (RD) <tian.xianting@h3c.com> > Cc: tytso@mit.edu; adilger.kernel@dilger.ca; jack@suse.cz; linux-ext4@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] ext4: remove the null check of bio_vec page > > On Tue 20-10-20 16:22:01, Xianting Tian wrote: > > bv_page can't be NULL in a valid bio_vec, so we can remove the NULL > > check, as we did in other places when calling > > bio_for_each_segment_all() to go through all bio_vec of a bio. > > > > Signed-off-by: Xianting Tian <tian.xianting@h3c.com> > > Thanks for the patch. It looks good to me. You can add: > > Reviewed-by: Jan Kara <jack@suse.cz> > > Honza > > > --- > > fs/ext4/page-io.c | 3 --- > > 1 file changed, 3 deletions(-) > > > > diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index > > defd2e10d..cb135a944 100644 > > --- a/fs/ext4/page-io.c > > +++ b/fs/ext4/page-io.c > > @@ -111,9 +111,6 @@ static void ext4_finish_bio(struct bio *bio) > > unsigned under_io = 0; > > unsigned long flags; > > > > - if (!page) > > - continue; > > - > > if (fscrypt_is_bounce_page(page)) { > > bounce_page = page; > > page = fscrypt_pagecache_page(bounce_page); > > -- > > 2.17.1 > > > -- > Jan Kara <jack@suse.com> > SUSE Labs, CR
Thanks Jan Hi Ted Tso, Could I get your opinion of this patch? thanks -----Original Message----- From: Jan Kara [mailto:jack@suse.cz] Sent: Saturday, October 24, 2020 12:57 AM To: tianxianting (RD) <tian.xianting@h3c.com> Cc: Jan Kara <jack@suse.cz>; tytso@mit.edu; adilger.kernel@dilger.ca; linux-ext4@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH] ext4: remove the null check of bio_vec page On Fri 23-10-20 16:38:16, Tianxianting wrote: > Thanks Jan > Can be the patch applied? Ted Tso is the ext4 maintainer so he should eventually pick up and apply the patch. But since there's merge window currently open, I guess he's busy shuffling patches to send to Linus. I'd expect he'll get to your patch in a week or two. Honza > > -----Original Message----- > From: Jan Kara [mailto:jack@suse.cz] > Sent: Wednesday, October 21, 2020 6:25 PM > To: tianxianting (RD) <tian.xianting@h3c.com> > Cc: tytso@mit.edu; adilger.kernel@dilger.ca; jack@suse.cz; > linux-ext4@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] ext4: remove the null check of bio_vec page > > On Tue 20-10-20 16:22:01, Xianting Tian wrote: > > bv_page can't be NULL in a valid bio_vec, so we can remove the NULL > > check, as we did in other places when calling > > bio_for_each_segment_all() to go through all bio_vec of a bio. > > > > Signed-off-by: Xianting Tian <tian.xianting@h3c.com> > > Thanks for the patch. It looks good to me. You can add: > > Reviewed-by: Jan Kara <jack@suse.cz> > > Honza > > > --- > > fs/ext4/page-io.c | 3 --- > > 1 file changed, 3 deletions(-) > > > > diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index > > defd2e10d..cb135a944 100644 > > --- a/fs/ext4/page-io.c > > +++ b/fs/ext4/page-io.c > > @@ -111,9 +111,6 @@ static void ext4_finish_bio(struct bio *bio) > > unsigned under_io = 0; > > unsigned long flags; > > > > - if (!page) > > - continue; > > - > > if (fscrypt_is_bounce_page(page)) { > > bounce_page = page; > > page = fscrypt_pagecache_page(bounce_page); > > -- > > 2.17.1 > > > -- > Jan Kara <jack@suse.com> > SUSE Labs, CR -- Jan Kara <jack@suse.com> SUSE Labs, CR
On Wed, Oct 21, 2020 at 12:25:03PM +0200, Jan Kara wrote: > On Tue 20-10-20 16:22:01, Xianting Tian wrote: > > bv_page can't be NULL in a valid bio_vec, so we can remove the NULL check, > > as we did in other places when calling bio_for_each_segment_all() to go > > through all bio_vec of a bio. > > > > Signed-off-by: Xianting Tian <tian.xianting@h3c.com> > > Thanks for the patch. It looks good to me. You can add: > > Reviewed-by: Jan Kara <jack@suse.cz> Applied, thanks. - Ted
Thanks Ted :) -----Original Message----- From: Theodore Y. Ts'o [mailto:tytso@mit.edu] Sent: Thursday, December 03, 2020 10:11 PM To: Jan Kara <jack@suse.cz> Cc: tianxianting (RD) <tian.xianting@h3c.com>; adilger.kernel@dilger.ca; linux-ext4@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH] ext4: remove the null check of bio_vec page On Wed, Oct 21, 2020 at 12:25:03PM +0200, Jan Kara wrote: > On Tue 20-10-20 16:22:01, Xianting Tian wrote: > > bv_page can't be NULL in a valid bio_vec, so we can remove the NULL > > check, as we did in other places when calling > > bio_for_each_segment_all() to go through all bio_vec of a bio. > > > > Signed-off-by: Xianting Tian <tian.xianting@h3c.com> > > Thanks for the patch. It looks good to me. You can add: > > Reviewed-by: Jan Kara <jack@suse.cz> Applied, thanks. - Ted
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index defd2e10d..cb135a944 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -111,9 +111,6 @@ static void ext4_finish_bio(struct bio *bio) unsigned under_io = 0; unsigned long flags; - if (!page) - continue; - if (fscrypt_is_bounce_page(page)) { bounce_page = page; page = fscrypt_pagecache_page(bounce_page);
bv_page can't be NULL in a valid bio_vec, so we can remove the NULL check, as we did in other places when calling bio_for_each_segment_all() to go through all bio_vec of a bio. Signed-off-by: Xianting Tian <tian.xianting@h3c.com> --- fs/ext4/page-io.c | 3 --- 1 file changed, 3 deletions(-)