X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=fs%2Fjffs2%2Fsuper.c;h=61ea41389f90d91d8b3ab6a6a39cd580720f1950;hb=fb6ccff667712c46b4501b920ea73a326e49626a;hp=f9916f312bd81e3590fde1c92a025458cb64ab11;hpb=2335a8366f63a5191b5a2b3c5a05d90fe814654c;p=karo-tx-linux.git

diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index f9916f312bd8..61ea41389f90 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -63,21 +63,6 @@ static void jffs2_i_init_once(void *foo)
 	inode_init_once(&f->vfs_inode);
 }
 
-static void jffs2_write_super(struct super_block *sb)
-{
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
-
-	lock_super(sb);
-	sb->s_dirt = 0;
-
-	if (!(sb->s_flags & MS_RDONLY)) {
-		jffs2_dbg(1, "%s()\n", __func__);
-		jffs2_flush_wbuf_gc(c, 0);
-	}
-
-	unlock_super(sb);
-}
-
 static const char *jffs2_compr_name(unsigned int compr)
 {
 	switch (compr) {
@@ -105,6 +90,8 @@ static int jffs2_show_options(struct seq_file *s, struct dentry *root)
 
 	if (opts->override_compr)
 		seq_printf(s, ",compr=%s", jffs2_compr_name(opts->compr));
+	if (opts->rp_size)
+		seq_printf(s, ",rp_size=%u", opts->rp_size / 1024);
 
 	return 0;
 }
@@ -113,8 +100,6 @@ static int jffs2_sync_fs(struct super_block *sb, int wait)
 {
 	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
 
-	jffs2_write_super(sb);
-
 	mutex_lock(&c->alloc_sem);
 	jffs2_flush_wbuf_pad(c);
 	mutex_unlock(&c->alloc_sem);
@@ -171,15 +156,18 @@ static const struct export_operations jffs2_export_ops = {
  * JFFS2 mount options.
  *
  * Opt_override_compr: override default compressor
+ * Opt_rp_size: size of reserved pool in KiB
  * Opt_err: just end of array marker
  */
 enum {
 	Opt_override_compr,
+	Opt_rp_size,
 	Opt_err,
 };
 
 static const match_table_t tokens = {
 	{Opt_override_compr, "compr=%s"},
+	{Opt_rp_size, "rp_size=%u"},
 	{Opt_err, NULL},
 };
 
@@ -187,6 +175,7 @@ static int jffs2_parse_options(struct jffs2_sb_info *c, char *data)
 {
 	substring_t args[MAX_OPT_ARGS];
 	char *p, *name;
+	unsigned int opt;
 
 	if (!data)
 		return 0;
@@ -224,6 +213,17 @@ static int jffs2_parse_options(struct jffs2_sb_info *c, char *data)
 			kfree(name);
 			c->mount_opts.override_compr = true;
 			break;
+		case Opt_rp_size:
+			if (match_int(&args[0], &opt))
+				return -EINVAL;
+			opt *= 1024;
+			if (opt > c->mtd->size) {
+				pr_warn("Too large reserve pool specified, max "
+					"is %llu KB\n", c->mtd->size / 1024);
+				return -EINVAL;
+			}
+			c->mount_opts.rp_size = opt;
+			break;
 		default:
 			pr_err("Error: unrecognized mount option '%s' or missing value\n",
 			       p);
@@ -251,7 +251,6 @@ static const struct super_operations jffs2_super_operations =
 	.alloc_inode =	jffs2_alloc_inode,
 	.destroy_inode =jffs2_destroy_inode,
 	.put_super =	jffs2_put_super,
-	.write_super =	jffs2_write_super,
 	.statfs =	jffs2_statfs,
 	.remount_fs =	jffs2_remount_fs,
 	.evict_inode =	jffs2_evict_inode,
@@ -319,9 +318,6 @@ static void jffs2_put_super (struct super_block *sb)
 
 	jffs2_dbg(2, "%s()\n", __func__);
 
-	if (sb->s_dirt)
-		jffs2_write_super(sb);
-
 	mutex_lock(&c->alloc_sem);
 	jffs2_flush_wbuf_pad(c);
 	mutex_unlock(&c->alloc_sem);