Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932227Ab0GBSpc (ORCPT ); Fri, 2 Jul 2010 14:45:32 -0400 Received: from e23smtp05.au.ibm.com ([202.81.31.147]:33414 "EHLO e23smtp05.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932087Ab0GBSpX (ORCPT ); Fri, 2 Jul 2010 14:45:23 -0400 From: "Aneesh Kumar K.V" To: sfrench@us.ibm.com, ffilz@us.ibm.com, agruen@suse.de, adilger@sun.com, sandeen@redhat.com, tytso@mit.edu, staubach@redhat.com, bfields@citi.umich.edu, jlayton@redhat.com Cc: aneesh.kumar@linux.vnet.ibm.com, linux-fsdevel@vger.kernel.org, nfsv4@linux-nfs.org, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH -V2 16/16] ext4: Add temporary richacl mount option for ext4. Date: Sat, 3 Jul 2010 00:13:47 +0530 Message-Id: <1278096227-16784-17-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.2.rc1 In-Reply-To: <1278096227-16784-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1278096227-16784-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4526 Lines: 143 This helps in easy testing of the patchset. The mount option will be later removed in favour of a feature flag. ***Should be folded before merging*** Signed-off-by: Aneesh Kumar K.V --- fs/ext4/ext4.h | 1 + fs/ext4/super.c | 54 ++++++++++++++++++++++++++++++++++++++++++------------ 2 files changed, 43 insertions(+), 12 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 966d0cb..d54cd0c 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -888,6 +888,7 @@ struct ext4_inode_info { #define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */ #define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */ #define EXT4_MOUNT_DISCARD 0x40000000 /* Issue DISCARD requests */ +#define EXT4_MOUNT_RICHACL 0x80000000 /* Temp richacl enable */ #define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt #define set_opt(o, opt) o |= EXT4_MOUNT_##opt diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 520ab44..c5861c9 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -932,6 +932,10 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs) if (!(sb->s_flags & MS_POSIXACL) && (def_mount_opts & EXT4_DEFM_ACL)) seq_puts(seq, ",noacl"); #endif +#ifdef CONFIG_EXT4_FS_RICHACL + if (sb->s_flags & MS_RICHACL) + seq_puts(seq, ",richacl"); +#endif if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) { seq_printf(seq, ",commit=%u", (unsigned) (sbi->s_commit_interval / HZ)); @@ -1170,7 +1174,7 @@ enum { Opt_block_validity, Opt_noblock_validity, Opt_inode_readahead_blks, Opt_journal_ioprio, Opt_dioread_nolock, Opt_dioread_lock, - Opt_discard, Opt_nodiscard, + Opt_discard, Opt_nodiscard, Opt_richacl, }; static const match_table_t tokens = { @@ -1241,6 +1245,7 @@ static const match_table_t tokens = { {Opt_dioread_lock, "dioread_lock"}, {Opt_discard, "discard"}, {Opt_nodiscard, "nodiscard"}, + {Opt_richacl, "richacl"}, {Opt_err, NULL}, }; @@ -1267,6 +1272,35 @@ static ext4_fsblk_t get_sb_block(void **data) return sb_block; } +static void enable_acl(struct super_block *sb) +{ +#if !defined(CONFIG_EXT4_FS_POSIX_ACL) + ext4_msg(sb, KERN_ERR, "acl options not supported"); + return; +#endif + sb->s_flags |= MS_POSIXACL; +} + +static void disable_acl(struct super_block *sb) +{ +#if !defined(CONFIG_EXT4_FS_POSIX_ACL) + ext4_msg(sb, KERN_ERR, "acl options not supported"); + return; +#endif + sb->s_flags &= ~MS_POSIXACL; + return; +} + +static void enable_richacl(struct super_block *sb) +{ +#if !defined(CONFIG_EXT4_FS_RICHACL) + ext4_msg(sb, KERN_ERR, "richacl options not supported"); + return; +#endif + sb->s_flags |= MS_RICHACL; + return; +} + #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n" "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n"; @@ -1431,19 +1465,12 @@ static int parse_options(char *options, struct super_block *sb, ext4_msg(sb, KERN_ERR, "(no)user_xattr options not supported"); break; #endif -#ifdef CONFIG_EXT4_FS_POSIX_ACL case Opt_acl: - sb->s_flags |= MS_POSIXACL; + enable_acl(sb); break; case Opt_noacl: - sb->s_flags &= ~MS_POSIXACL; + disable_acl(sb); break; -#else - case Opt_acl: - case Opt_noacl: - ext4_msg(sb, KERN_ERR, "(no)acl options not supported"); - break; -#endif case Opt_journal_update: /* @@@ FIXME */ /* Eventually we will want to be able to create @@ -1709,6 +1736,9 @@ set_qf_format: case Opt_dioread_lock: clear_opt(sbi->s_mount_opt, DIOREAD_NOLOCK); break; + case Opt_richacl: + enable_richacl(sb); + break; default: ext4_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" " @@ -2539,9 +2569,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) if (def_mount_opts & EXT4_DEFM_XATTR_USER) set_opt(sbi->s_mount_opt, XATTR_USER); #endif -#ifdef CONFIG_EXT4_FS_POSIX_ACL +#if defined(CONFIG_EXT4_FS_POSIX_ACL) if (def_mount_opts & EXT4_DEFM_ACL) - sb->s_flags |= MS_POSIXACL; + enable_acl(sb); #endif if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA) set_opt(sbi->s_mount_opt, JOURNAL_DATA); -- 1.7.2.rc1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/