X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fext3%2Fsuper.c;h=27c0fe37d562f2494416339d2a747563f7f80a17;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=4bbb5a078bbb8c781ee9f29794af03b1c02a219f;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 4bbb5a078..27c0fe37d 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -356,7 +356,7 @@ static int ext3_blkdev_remove(struct ext3_sb_info *sbi)
 	bdev = sbi->journal_bdev;
 	if (bdev) {
 		ret = ext3_blkdev_put(bdev);
-		sbi->journal_bdev = 0;
+		sbi->journal_bdev = NULL;
 	}
 	return ret;
 }
@@ -521,6 +521,8 @@ static void ext3_clear_inode(struct inode *inode)
 static int ext3_dquot_initialize(struct inode *inode, int type);
 static int ext3_dquot_drop(struct inode *inode);
 static int ext3_write_dquot(struct dquot *dquot);
+static int ext3_acquire_dquot(struct dquot *dquot);
+static int ext3_release_dquot(struct dquot *dquot);
 static int ext3_mark_dquot_dirty(struct dquot *dquot);
 static int ext3_write_info(struct super_block *sb, int type);
 static int ext3_quota_on(struct super_block *sb, int type, int format_id, char *path);
@@ -536,6 +538,8 @@ static struct dquot_operations ext3_quota_operations = {
 	.free_inode	= dquot_free_inode,
 	.transfer	= dquot_transfer,
 	.write_dquot	= ext3_write_dquot,
+	.acquire_dquot	= ext3_acquire_dquot,
+	.release_dquot	= ext3_release_dquot,
 	.mark_dirty	= ext3_mark_dquot_dirty,
 	.write_info	= ext3_write_info
 };
@@ -583,7 +587,7 @@ 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_ignore, Opt_err,
+	Opt_tagxid, Opt_ignore, Opt_err,
 };
 
 static match_table_t tokens = {
@@ -624,6 +628,7 @@ static match_table_t tokens = {
 	{Opt_grpjquota, "grpjquota=%s"},
 	{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
 	{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
+	{Opt_tagxid, "tagxid"},
 	{Opt_ignore, "grpquota"},
 	{Opt_ignore, "noquota"},
 	{Opt_ignore, "quota"},
@@ -717,6 +722,16 @@ static int parse_options (char * options, struct super_block *sb,
 		case Opt_nouid32:
 			set_opt (sbi->s_mount_opt, NO_UID32);
 			break;
+#ifndef CONFIG_INOXID_NONE
+		case Opt_tagxid:
+			if (is_remount) {
+				printk(KERN_ERR "EXT3-fs: cannot specify "
+				       "tagxid on remount\n");
+				return 0;
+			}
+			set_opt (sbi->s_mount_opt, TAG_XID);
+			break;
+#endif
 		case Opt_check:
 #ifdef CONFIG_EXT3_CHECK
 			set_opt (sbi->s_mount_opt, CHECK);
@@ -1197,7 +1212,7 @@ static unsigned long descriptor_loc(struct super_block *sb,
 static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 {
 	struct buffer_head * bh;
-	struct ext3_super_block *es = 0;
+	struct ext3_super_block *es = NULL;
 	struct ext3_sb_info *sbi;
 	unsigned long block;
 	unsigned long sb_block = get_sb_block(&data);
@@ -1287,6 +1302,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	if (!parse_options ((char *) data, sb, &journal_inum, 0))
 		goto failed_mount;
 
+	if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAG_XID)
+		sb->s_flags |= MS_TAGXID;
 	sb->s_flags |= MS_ONE_SECOND;
 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
 		((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
@@ -1469,7 +1486,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 #endif
 	INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
 
-	sb->s_root = 0;
+	sb->s_root = NULL;
 
 	needs_recovery = (es->s_last_orphan != 0 ||
 			  EXT3_HAS_INCOMPAT_FEATURE(sb,
@@ -1639,6 +1656,7 @@ static journal_t *ext3_get_journal(struct super_block *sb, int journal_inum)
 	if (!journal) {
 		printk(KERN_ERR "EXT3-fs: Could not load journal inode\n");
 		iput(journal_inode);
+		return NULL;
 	}
 	journal->j_private = sb;
 	ext3_init_journal_params(EXT3_SB(sb), journal);
@@ -1870,13 +1888,17 @@ static void ext3_commit_super (struct super_block * sb,
 static void ext3_mark_recovery_complete(struct super_block * sb,
 					struct ext3_super_block * es)
 {
-	journal_flush(EXT3_SB(sb)->s_journal);
+	journal_t *journal = EXT3_SB(sb)->s_journal;
+
+	journal_lock_updates(journal);
+	journal_flush(journal);
 	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
 	    sb->s_flags & MS_RDONLY) {
 		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
 		sb->s_dirt = 0;
 		ext3_commit_super(sb, es, 1);
 	}
+	journal_unlock_updates(journal);
 }
 
 /*
@@ -2181,6 +2203,38 @@ static int ext3_write_dquot(struct dquot *dquot)
 	return ret;
 }
 
+static int ext3_acquire_dquot(struct dquot *dquot)
+{
+	int ret, err;
+	handle_t *handle;
+
+	handle = ext3_journal_start(dquot_to_inode(dquot),
+					EXT3_QUOTA_INIT_BLOCKS);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+	ret = dquot_acquire(dquot);
+	err = ext3_journal_stop(handle);
+	if (!ret)
+		ret = err;
+	return ret;
+}
+
+static int ext3_release_dquot(struct dquot *dquot)
+{
+	int ret, err;
+	handle_t *handle;
+
+	handle = ext3_journal_start(dquot_to_inode(dquot),
+					EXT3_QUOTA_INIT_BLOCKS);
+	if (IS_ERR(handle))
+		return PTR_ERR(handle);
+	ret = dquot_release(dquot);
+	err = ext3_journal_stop(handle);
+	if (!ret)
+		ret = err;
+	return ret;
+}
+
 static int ext3_mark_dquot_dirty(struct dquot *dquot)
 {
 	/* Are we journalling quotas? */