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Date:	Tue, 24 Jul 2007 15:20:17 -0700
From:	akpm@...ux-foundation.org
To:	mm-commits@...r.kernel.org
Cc:	mszeredi@...e.cz, linux-ext4@...r.kernel.org
Subject: + ext3-show-all-mount-options.patch added to -mm tree


The patch titled
     ext3: show all mount options
has been added to the -mm tree.  Its filename is
     ext3-show-all-mount-options.patch

*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

------------------------------------------------------
Subject: ext3: show all mount options
From: Miklos Szeredi <mszeredi@...e.cz>

Signed-off-by: Miklos Szeredi <mszeredi@...e.cz>
Cc: <linux-ext4@...r.kernel.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 fs/ext3/super.c            |   70 +++++++++++++++++++++++++++++++++++
 include/linux/ext3_fs_sb.h |    1 
 2 files changed, 71 insertions(+)

diff -puN fs/ext3/super.c~ext3-show-all-mount-options fs/ext3/super.c
--- a/fs/ext3/super.c~ext3-show-all-mount-options
+++ a/fs/ext3/super.c
@@ -545,9 +545,78 @@ static inline void ext3_show_quota_optio
 #endif
 }
 
+/*
+ * Show an option if
+ *  - it's set to a non-default value OR
+ *  - if the per-sb default is different from the global default
+ */
 static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
 	struct super_block *sb = vfs->mnt_sb;
+	struct ext3_sb_info *sbi = EXT3_SB(sb);
+	struct ext3_super_block *es = sbi->s_es;
+	unsigned long def_mount_opts;
+
+	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
+
+	if (sbi->s_sb_block != 1)
+		seq_printf(seq, ",sb=%lu", sbi->s_sb_block);
+	if (test_opt(sb, MINIX_DF))
+		seq_puts(seq, ",minixdf");
+	if (test_opt(sb, GRPID))
+		seq_puts(seq, ",grpid");
+	if (!test_opt(sb, GRPID) && (def_mount_opts & EXT3_DEFM_BSDGROUPS))
+		seq_puts(seq, ",nogrpid");
+	if (sbi->s_resuid != EXT3_DEF_RESUID ||
+	    le16_to_cpu(es->s_def_resuid) != EXT3_DEF_RESUID) {
+		seq_printf(seq, ",resuid=%u", sbi->s_resuid);
+	}
+	if (sbi->s_resgid != EXT3_DEF_RESGID ||
+	    le16_to_cpu(es->s_def_resgid) != EXT3_DEF_RESGID) {
+		seq_printf(seq, ",resgid=%u", sbi->s_resgid);
+	}
+	if (test_opt(sb, ERRORS_CONT)) {
+		int def_errors = le16_to_cpu(es->s_errors);
+
+		if (def_errors == EXT3_ERRORS_PANIC ||
+		    def_errors == EXT3_ERRORS_RO) {
+			seq_puts(seq, ",errors=continue");
+		}
+	}
+	if (test_opt(sb, ERRORS_RO))
+		seq_puts(seq, ",errors=remount-ro");
+	if (test_opt(sb, ERRORS_PANIC))
+		seq_puts(seq, ",errors=panic");
+	if (test_opt(sb, NO_UID32))
+		seq_puts(seq, ",nouid32");
+	if (test_opt(sb, DEBUG))
+		seq_puts(seq, ",debug");
+	if (test_opt(sb, OLDALLOC))
+		seq_puts(seq, ",oldalloc");
+#ifdef CONFIG_EXT3_FS_XATTR
+	if (test_opt(sb, XATTR_USER))
+		seq_puts(seq, ",user_xattr");
+	if (!test_opt(sb, XATTR_USER) &&
+	    (def_mount_opts & EXT3_DEFM_XATTR_USER)) {
+		seq_puts(seq, ",nouser_xattr");
+	}
+#endif
+#ifdef CONFIG_EXT3_FS_POSIX_ACL
+	if (test_opt(sb, POSIX_ACL))
+		seq_puts(seq, ",acl");
+	if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT3_DEFM_ACL))
+		seq_puts(seq, ",noacl");
+#endif
+	if (!test_opt(sb, RESERVATION))
+		seq_puts(seq, ",noreservation");
+	if (sbi->s_commit_interval) {
+		seq_printf(seq, ",commit=%u",
+			   (unsigned) (sbi->s_commit_interval / HZ));
+	}
+	if (test_opt(sb, BARRIER))
+		seq_puts(seq, ",barrier=1");
+	if (test_opt(sb, NOBH))
+		seq_puts(seq, ",nobh");
 
 	if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
 		seq_puts(seq, ",data=journal");
@@ -1424,6 +1493,7 @@ static int ext3_fill_super (struct super
 	sbi->s_mount_opt = 0;
 	sbi->s_resuid = EXT3_DEF_RESUID;
 	sbi->s_resgid = EXT3_DEF_RESGID;
+	sbi->s_sb_block = sb_block;
 
 	unlock_kernel();
 
diff -puN include/linux/ext3_fs_sb.h~ext3-show-all-mount-options include/linux/ext3_fs_sb.h
--- a/include/linux/ext3_fs_sb.h~ext3-show-all-mount-options
+++ a/include/linux/ext3_fs_sb.h
@@ -44,6 +44,7 @@ struct ext3_sb_info {
 	struct ext3_super_block * s_es;	/* Pointer to the super block in the buffer */
 	struct buffer_head ** s_group_desc;
 	unsigned long  s_mount_opt;
+	ext3_fsblk_t s_sb_block;
 	uid_t s_resuid;
 	gid_t s_resgid;
 	unsigned short s_mount_state;
_

Patches currently in -mm which might be from mszeredi@...e.cz are

fuse-convert-to-new-aops.patch
ext2-show-all-mount-options.patch
ext3-show-all-mount-options.patch
ext4-show-all-mount-options.patch
unprivileged-mounts-add-user-mounts-to-the-kernel.patch
unprivileged-mounts-allow-unprivileged-umount.patch
unprivileged-mounts-account-user-mounts.patch
unprivileged-mounts-propagate-error-values-from-clone_mnt.patch
unprivileged-mounts-allow-unprivileged-bind-mounts.patch
unprivileged-mounts-put-declaration-of-put_filesystem-in-fsh.patch
unprivileged-mounts-allow-unprivileged-mounts.patch
unprivileged-mounts-allow-unprivileged-fuse-mounts.patch
unprivileged-mounts-propagation-inherit-owner-from-parent.patch
unprivileged-mounts-propagation-inherit-owner-from-parent-fix-for-git-audit.patch
unprivileged-mounts-add-no-submounts-flag.patch

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