add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/qnx4/inode.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * QNX4 file system, Linux implementation.
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  *
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@@ -28,14 +29,14 @@
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 static const struct super_operations qnx4_sops;
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 static struct inode *qnx4_alloc_inode(struct super_block *sb);
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-static void qnx4_destroy_inode(struct inode *inode);
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+static void qnx4_free_inode(struct inode *inode);
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 static int qnx4_remount(struct super_block *sb, int *flags, char *data);
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 static int qnx4_statfs(struct dentry *, struct kstatfs *);
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 static const struct super_operations qnx4_sops =
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 {
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 	.alloc_inode	= qnx4_alloc_inode,
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-	.destroy_inode	= qnx4_destroy_inode,
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+	.free_inode	= qnx4_free_inode,
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 	.statfs		= qnx4_statfs,
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 	.remount_fs	= qnx4_remount,
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 };
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@@ -136,8 +137,7 @@
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 	buf->f_bfree   = qnx4_count_free_blocks(sb);
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 	buf->f_bavail  = buf->f_bfree;
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 	buf->f_namelen = QNX4_NAME_MAX;
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-	buf->f_fsid.val[0] = (u32)id;
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-	buf->f_fsid.val[1] = (u32)(id >> 32);
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+	buf->f_fsid    = u64_to_fsid(id);
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 	return 0;
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 }
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@@ -200,6 +200,8 @@
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 	s->s_op = &qnx4_sops;
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 	s->s_magic = QNX4_SUPER_MAGIC;
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 	s->s_flags |= SB_RDONLY;	/* Yup, read-only yet */
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+	s->s_time_min = 0;
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+	s->s_time_max = U32_MAX;
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 	/* Check the superblock signature. Since the qnx4 code is
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 	   dangerous, we should leave as quickly as possible
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@@ -342,15 +344,9 @@
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 	return &ei->vfs_inode;
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 }
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-static void qnx4_i_callback(struct rcu_head *head)
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+static void qnx4_free_inode(struct inode *inode)
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 {
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-	struct inode *inode = container_of(head, struct inode, i_rcu);
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 	kmem_cache_free(qnx4_inode_cachep, qnx4_i(inode));
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-}
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-
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-static void qnx4_destroy_inode(struct inode *inode)
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-{
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-	call_rcu(&inode->i_rcu, qnx4_i_callback);
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 }
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 static void init_once(void *foo)
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@@ -424,4 +420,5 @@
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 module_init(init_qnx4_fs)
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 module_exit(exit_qnx4_fs)
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 MODULE_LICENSE("GPL");
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+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
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