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-rw-r--r--fs/exfat/super.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index d9d4fa9101..fcb6582677 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -39,9 +39,6 @@ static void exfat_put_super(struct super_block *sb)
exfat_free_bitmap(sbi);
brelse(sbi->boot_bh);
mutex_unlock(&sbi->s_lock);
-
- unload_nls(sbi->nls_io);
- exfat_free_upcase_table(sbi);
}
static int exfat_sync_fs(struct super_block *sb, int wait)
@@ -600,7 +597,7 @@ static int __exfat_fill_super(struct super_block *sb)
ret = exfat_load_bitmap(sb);
if (ret) {
exfat_err(sb, "failed to load alloc-bitmap");
- goto free_upcase_table;
+ goto free_bh;
}
ret = exfat_count_used_clusters(sb, &sbi->used_clusters);
@@ -613,8 +610,6 @@ static int __exfat_fill_super(struct super_block *sb)
free_alloc_bitmap:
exfat_free_bitmap(sbi);
-free_upcase_table:
- exfat_free_upcase_table(sbi);
free_bh:
brelse(sbi->boot_bh);
return ret;
@@ -701,12 +696,10 @@ put_inode:
sb->s_root = NULL;
free_table:
- exfat_free_upcase_table(sbi);
exfat_free_bitmap(sbi);
brelse(sbi->boot_bh);
check_nls_io:
- unload_nls(sbi->nls_io);
return err;
}
@@ -771,13 +764,22 @@ static int exfat_init_fs_context(struct fs_context *fc)
return 0;
}
+static void delayed_free(struct rcu_head *p)
+{
+ struct exfat_sb_info *sbi = container_of(p, struct exfat_sb_info, rcu);
+
+ unload_nls(sbi->nls_io);
+ exfat_free_upcase_table(sbi);
+ exfat_free_sbi(sbi);
+}
+
static void exfat_kill_sb(struct super_block *sb)
{
struct exfat_sb_info *sbi = sb->s_fs_info;
kill_block_super(sb);
if (sbi)
- exfat_free_sbi(sbi);
+ call_rcu(&sbi->rcu, delayed_free);
}
static struct file_system_type exfat_fs_type = {