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exfat: don't RCU-free the sbi

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There are no RCU critical sections for accessing any information in the
sbi, so drop the call_rcu indirection for freeing the sbi.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Message-Id: <20230809220545.1308228-10-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christoph Hellwig 2023-08-09 15:05:41 -07:00 • committed by Christian Brauner
parent 1489dffd51
commit c934dc927e
2 changed files with 4 additions and 13 deletions
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2
fs/exfat/exfat_fs.h
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@ -273,8 +273,6 @@ struct exfat_sb_info {
spinlock_t inode_hash_lock;
struct hlist_head inode_hashtable[EXFAT_HASH_SIZE];
struct rcu_head rcu;
};
#define EXFAT_CACHE_VALID 0

15
fs/exfat/super.c
View file

@ -31,16 +31,6 @@ static void exfat_free_iocharset(struct exfat_sb_info *sbi)
kfree(sbi->options.iocharset);
}
static void exfat_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_iocharset(sbi);
exfat_free_upcase_table(sbi);
kfree(sbi);
}
static void exfat_put_super(struct super_block *sb)
{
struct exfat_sb_info *sbi = EXFAT_SB(sb);
@ -50,7 +40,10 @@ static void exfat_put_super(struct super_block *sb)
brelse(sbi->boot_bh);
mutex_unlock(&sbi->s_lock);
call_rcu(&sbi->rcu, exfat_delayed_free);
unload_nls(sbi->nls_io);
exfat_free_iocharset(sbi);
exfat_free_upcase_table(sbi);
kfree(sbi);
}
static int exfat_sync_fs(struct super_block *sb, int wait)