From: Joel Becker <jlbec@evilplan.org> To: Alexandru Gheorghiu <gheorghiuandru@gmail.com> Cc: Mark Fasheh <mfasheh@suse.com>, ocfs2-devel@oss.oracle.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] fs: fs2fs: Replaced calls to kmalloc and memcpy with kmemdup Date: Sun, 10 Mar 2013 15:55:13 -0700 [thread overview] Message-ID: <20130310225513.GF7783@localhost> (raw) In-Reply-To: <1362829777-6924-1-git-send-email-gheorghiuandru@gmail.com> On Sat, Mar 09, 2013 at 01:49:37PM +0200, Alexandru Gheorghiu wrote: > Replaced calls to kmalloc followd by memcpy with a single call to kmemdup. > This patch was found using coccicheck. > > Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com> Acked-by: Joel Becker <jlbec@evilplan.org> > --- > fs/ocfs2/localalloc.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c > index aebeacd..839183f 100644 > --- a/fs/ocfs2/localalloc.c > +++ b/fs/ocfs2/localalloc.c > @@ -434,12 +434,11 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb) > bh = osb->local_alloc_bh; > alloc = (struct ocfs2_dinode *) bh->b_data; > > - alloc_copy = kmalloc(bh->b_size, GFP_NOFS); > + alloc_copy = kmemdup(alloc, bh->b_size, GFP_NOFS); > if (!alloc_copy) { > status = -ENOMEM; > goto out_commit; > } > - memcpy(alloc_copy, alloc, bh->b_size); > > status = ocfs2_journal_access_di(handle, INODE_CACHE(local_alloc_inode), > bh, OCFS2_JOURNAL_ACCESS_WRITE); > @@ -1244,13 +1243,12 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, > * local alloc shutdown won't try to double free main bitmap > * bits. Make a copy so the sync function knows which bits to > * free. */ > - alloc_copy = kmalloc(osb->local_alloc_bh->b_size, GFP_NOFS); > + alloc_copy = kmemdup(alloc, osb->local_alloc_bh->b_size, GFP_NOFS); > if (!alloc_copy) { > status = -ENOMEM; > mlog_errno(status); > goto bail; > } > - memcpy(alloc_copy, alloc, osb->local_alloc_bh->b_size); > > status = ocfs2_journal_access_di(handle, > INODE_CACHE(local_alloc_inode), > -- > 1.7.9.5 > -- "Egotist: a person more interested in himself than in me." - Ambrose Bierce http://www.jlbec.org/ jlbec@evilplan.org
WARNING: multiple messages have this Message-ID (diff)
From: Joel Becker <jlbec@evilplan.org> To: Alexandru Gheorghiu <gheorghiuandru@gmail.com> Cc: Mark Fasheh <mfasheh@suse.com>, ocfs2-devel@oss.oracle.com, linux-kernel@vger.kernel.org Subject: [Ocfs2-devel] [PATCH] fs: fs2fs: Replaced calls to kmalloc and memcpy with kmemdup Date: Sun, 10 Mar 2013 15:55:13 -0700 [thread overview] Message-ID: <20130310225513.GF7783@localhost> (raw) In-Reply-To: <1362829777-6924-1-git-send-email-gheorghiuandru@gmail.com> On Sat, Mar 09, 2013 at 01:49:37PM +0200, Alexandru Gheorghiu wrote: > Replaced calls to kmalloc followd by memcpy with a single call to kmemdup. > This patch was found using coccicheck. > > Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com> Acked-by: Joel Becker <jlbec@evilplan.org> > --- > fs/ocfs2/localalloc.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c > index aebeacd..839183f 100644 > --- a/fs/ocfs2/localalloc.c > +++ b/fs/ocfs2/localalloc.c > @@ -434,12 +434,11 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb) > bh = osb->local_alloc_bh; > alloc = (struct ocfs2_dinode *) bh->b_data; > > - alloc_copy = kmalloc(bh->b_size, GFP_NOFS); > + alloc_copy = kmemdup(alloc, bh->b_size, GFP_NOFS); > if (!alloc_copy) { > status = -ENOMEM; > goto out_commit; > } > - memcpy(alloc_copy, alloc, bh->b_size); > > status = ocfs2_journal_access_di(handle, INODE_CACHE(local_alloc_inode), > bh, OCFS2_JOURNAL_ACCESS_WRITE); > @@ -1244,13 +1243,12 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, > * local alloc shutdown won't try to double free main bitmap > * bits. Make a copy so the sync function knows which bits to > * free. */ > - alloc_copy = kmalloc(osb->local_alloc_bh->b_size, GFP_NOFS); > + alloc_copy = kmemdup(alloc, osb->local_alloc_bh->b_size, GFP_NOFS); > if (!alloc_copy) { > status = -ENOMEM; > mlog_errno(status); > goto bail; > } > - memcpy(alloc_copy, alloc, osb->local_alloc_bh->b_size); > > status = ocfs2_journal_access_di(handle, > INODE_CACHE(local_alloc_inode), > -- > 1.7.9.5 > -- "Egotist: a person more interested in himself than in me." - Ambrose Bierce http://www.jlbec.org/ jlbec at evilplan.org
next prev parent reply other threads:[~2013-03-10 22:55 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-03-09 11:49 [PATCH] fs: fs2fs: Replaced calls to kmalloc and memcpy with kmemdup Alexandru Gheorghiu 2013-03-10 22:50 ` [Ocfs2-devel] " Alexandru Gheorghiu 2013-03-10 22:55 ` Joel Becker [this message] 2013-03-10 22:55 ` Joel Becker
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