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fs/adfs: map: factor out map cleanup 

We have several places which deal with releasing the map buffers and
freeing the map array.  Provide a helper for this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Russell King 2019-12-09 11:08:44 +00:00 committed by Al Viro
parent 6092b6be30
commit 7b19526762
3 changed files with 11 additions and 8 deletions
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1
fs/adfs/adfs.h
View File

@ -147,6 +147,7 @@ int adfs_notify_change(struct dentry *dentry, struct iattr *attr);
int adfs_map_lookup(struct super_block *sb, u32 frag_id, unsigned int offset);
void adfs_map_statfs(struct super_block *sb, struct kstatfs *buf);
struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_discrecord *dr);
void adfs_free_map(struct super_block *sb);
/* Misc */
__printf(3, 4)

8
fs/adfs/map.c
View File

@ -421,3 +421,11 @@ error_free:
kfree(dm);
return ERR_PTR(-EIO);
}
void adfs_free_map(struct super_block *sb)
{
struct adfs_sb_info *asb = ADFS_SB(sb);
adfs_map_relse(asb->s_map, asb->s_map_size);
kfree(asb->s_map);
}

10
fs/adfs/super.c
View File

@ -90,12 +90,9 @@ static int adfs_checkdiscrecord(struct adfs_discrecord *dr)
static void adfs_put_super(struct super_block *sb)
{
int i;
struct adfs_sb_info *asb = ADFS_SB(sb);
for (i = 0; i < asb->s_map_size; i++)
brelse(asb->s_map[i].dm_bh);
kfree(asb->s_map);
adfs_free_map(sb);
kfree_rcu(asb, rcu);
}
@ -412,10 +409,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
root = adfs_iget(sb, &root_obj);
sb->s_root = d_make_root(root);
if (!sb->s_root) {
int i;
for (i = 0; i < asb->s_map_size; i++)
brelse(asb->s_map[i].dm_bh);
kfree(asb->s_map);
adfs_free_map(sb);
adfs_error(sb, "get root inode failed\n");
ret = -EIO;
goto error;