From: Manish Katiyar Subject: Re: [PATCH 4/5] ext4 : Add missing posix_acl_release() in ext4_xattr_set_acl() in error path. Date: Thu, 12 May 2011 19:19:29 -0700 Message-ID: References: <20110511161808.GK5057@quack.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: ext4 , mkatiyar@gmail.com, "Theodore Ts'o" To: Jan Kara Return-path: Received: from mail-qw0-f46.google.com ([209.85.216.46]:34504 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750703Ab1EMCTu convert rfc822-to-8bit (ORCPT ); Thu, 12 May 2011 22:19:50 -0400 Received: by qwk3 with SMTP id 3so1080878qwk.19 for ; Thu, 12 May 2011 19:19:49 -0700 (PDT) In-Reply-To: <20110511161808.GK5057@quack.suse.cz> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Wed, May 11, 2011 at 9:18 AM, Jan Kara wrote: > On Sun 24-04-11 17:18:02, Manish Katiyar wrote: >> This patch fixes the following. >> >> a) Incase journal transaction allocation fails due to ENOMEM don't c= all >> ext4_std_error() since it will remount the fs as readonly and logs t= he >> message in kernel log. >> b) Call posix_acl_release() incase journal allocation fails in case = of >> error paths. >> >> >> Signed-off-by: Manish Katiyar >> --- >> =A0fs/ext4/acl.c | =A0 =A07 ++++--- >> =A01 files changed, 4 insertions(+), 3 deletions(-) >> >> diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c >> index 21eacd7..0c98710 100644 >> --- a/fs/ext4/acl.c >> +++ b/fs/ext4/acl.c >> @@ -354,7 +354,6 @@ ext4_acl_chmod(struct inode *inode) >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 EXT4_DAT= A_TRANS_BLOCKS(inode->i_sb)); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 if (IS_ERR(handle)) { >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 error =3D PTR_ERR(handle= ); >> - =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ext4_std_error(inode->i_sb= , error); > =A0The changelog speaks only about ENOMEM but you actually remove the > message completely (so it won't catch EIO or similar errors). I think= you > should just condition ext4_std_error() with if (error !=3D ENOMEM). Hi Jan, Thanks for your response. Here is the updated patch. -----------------------------------------------------------------------= ---------------------------------------------- a) Incase journal transaction allocation fails due to ENOMEM don't call ext4_std_error() since it will remount the fs as readonly and logs the message in kernel log. b) Call posix_acl_release() incase journal allocation fails in case of error paths. Signed-off-by: Manish Katiyar --- fs/ext4/acl.c | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index 21eacd7..93dc9a6 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -354,7 +354,8 @@ ext4_acl_chmod(struct inode *inode) EXT4_DATA_TRANS_BLOCKS(inode->i_sb)); if (IS_ERR(handle)) { error =3D PTR_ERR(handle); - ext4_std_error(inode->i_sb, error); + if (error !=3D -ENOMEM) + ext4_std_error(inode->i_sb, error); goto out; } error =3D ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone); @@ -450,8 +451,10 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, retry: handle =3D ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_= sb)); - if (IS_ERR(handle)) - return PTR_ERR(handle); + if (IS_ERR(handle)) { + error =3D PTR_ERR(handle); + goto release_and_out; + } error =3D ext4_set_acl(handle, inode, type, acl); ext4_journal_stop(handle); if (error =3D=3D -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &ret= ries)) --=20 1.7.4.1 --=20 Thanks - Manish -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html