Merge /spare/repo/linux-2.6/

1 files changed, 81 insertions, 11 deletions

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 3c3c6e399fb3..a93c3609025d 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -35,6 +35,7 @@
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/quotaops.h>
+#include <linux/seq_file.h>
 #include <asm/uaccess.h>
 #include "xattr.h"
 #include "acl.h"
@@ -509,8 +510,41 @@ static void ext3_clear_inode(struct inode *inode)
 	kfree(rsv);
 }
 
-#ifdef CONFIG_QUOTA
+static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+	struct ext3_sb_info *sbi = EXT3_SB(vfs->mnt_sb);
+
+	if (sbi->s_mount_opt & EXT3_MOUNT_JOURNAL_DATA)
+		seq_puts(seq, ",data=journal");
+
+	if (sbi->s_mount_opt & EXT3_MOUNT_ORDERED_DATA)
+		seq_puts(seq, ",data=ordered");
+
+	if (sbi->s_mount_opt & EXT3_MOUNT_WRITEBACK_DATA)
+		seq_puts(seq, ",data=writeback");
+
+#if defined(CONFIG_QUOTA)
+	if (sbi->s_jquota_fmt)
+		seq_printf(seq, ",jqfmt=%s",
+		(sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold": "vfsv0");
+
+	if (sbi->s_qf_names[USRQUOTA])
+		seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
+
+	if (sbi->s_qf_names[GRPQUOTA])
+		seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
 
+	if (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA)
+		seq_puts(seq, ",usrquota");
+
+	if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)
+		seq_puts(seq, ",grpquota");
+#endif
+
+	return 0;
+}
+
+#ifdef CONFIG_QUOTA
 #define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
 #define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
 
@@ -569,6 +603,7 @@ static struct super_operations ext3_sops = {
 	.statfs		= ext3_statfs,
 	.remount_fs	= ext3_remount,
 	.clear_inode	= ext3_clear_inode,
+	.show_options	= ext3_show_options,
 #ifdef CONFIG_QUOTA
 	.quota_read	= ext3_quota_read,
 	.quota_write	= ext3_quota_write,
@@ -590,7 +625,8 @@ enum {
 	Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
 	Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
 	Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
-	Opt_ignore, Opt_barrier, Opt_err, Opt_resize,
+	Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
+	Opt_grpquota
 };
 
 static match_table_t tokens = {
@@ -634,10 +670,10 @@ static match_table_t tokens = {
 	{Opt_grpjquota, "grpjquota=%s"},
 	{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
 	{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
-	{Opt_quota, "grpquota"},
+	{Opt_grpquota, "grpquota"},
 	{Opt_noquota, "noquota"},
 	{Opt_quota, "quota"},
-	{Opt_quota, "usrquota"},
+	{Opt_usrquota, "usrquota"},
 	{Opt_barrier, "barrier=%u"},
 	{Opt_err, NULL},
 	{Opt_resize, "resize"},
@@ -903,7 +939,13 @@ clear_qf_name:
 			sbi->s_jquota_fmt = QFMT_VFS_V0;
 			break;
 		case Opt_quota:
+		case Opt_usrquota:
 			set_opt(sbi->s_mount_opt, QUOTA);
+			set_opt(sbi->s_mount_opt, USRQUOTA);
+			break;
+		case Opt_grpquota:
+			set_opt(sbi->s_mount_opt, QUOTA);
+			set_opt(sbi->s_mount_opt, GRPQUOTA);
 			break;
 		case Opt_noquota:
 			if (sb_any_quota_enabled(sb)) {
@@ -912,8 +954,13 @@ clear_qf_name:
 				return 0;
 			}
 			clear_opt(sbi->s_mount_opt, QUOTA);
+			clear_opt(sbi->s_mount_opt, USRQUOTA);
+			clear_opt(sbi->s_mount_opt, GRPQUOTA);
 			break;
 #else
+		case Opt_quota:
+		case Opt_usrquota:
+		case Opt_grpquota:
 		case Opt_usrjquota:
 		case Opt_grpjquota:
 		case Opt_offusrjquota:
@@ -924,7 +971,6 @@ clear_qf_name:
 				"EXT3-fs: journalled quota options not "
 				"supported.\n");
 			break;
-		case Opt_quota:
 		case Opt_noquota:
 			break;
 #endif
@@ -962,14 +1008,38 @@ clear_qf_name:
 		}
 	}
 #ifdef CONFIG_QUOTA
-	if (!sbi->s_jquota_fmt && (sbi->s_qf_names[USRQUOTA] ||
-	    sbi->s_qf_names[GRPQUOTA])) {
-		printk(KERN_ERR
-			"EXT3-fs: journalled quota format not specified.\n");
-		return 0;
+	if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+		if ((sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) &&
+		     sbi->s_qf_names[USRQUOTA])
+			clear_opt(sbi->s_mount_opt, USRQUOTA);
+
+		if ((sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) &&
+		     sbi->s_qf_names[GRPQUOTA])
+			clear_opt(sbi->s_mount_opt, GRPQUOTA);
+
+		if ((sbi->s_qf_names[USRQUOTA] &&
+				(sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) ||
+		    (sbi->s_qf_names[GRPQUOTA] &&
+				(sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) {
+			printk(KERN_ERR "EXT3-fs: old and new quota "
+					"format mixing.\n");
+			return 0;
+		}
+
+		if (!sbi->s_jquota_fmt) {
+			printk(KERN_ERR "EXT3-fs: journalled quota format "
+					"not specified.\n");
+			return 0;
+		}
+	} else {
+		if (sbi->s_jquota_fmt) {
+			printk(KERN_ERR "EXT3-fs: journalled quota format "
+					"specified with no journalling "
+					"enabled.\n");
+			return 0;
+		}
 	}
 #endif
-
 	return 1;
 }