debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/fs/cifs/cifs_fs_sb.h
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@@ -51,12 +51,17 @@
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 					      */
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 #define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */
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 #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */
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+#define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */
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+#define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */
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+#define CIFS_MOUNT_RO_CACHE	0x20000000  /* assumes share will not change */
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+#define CIFS_MOUNT_RW_CACHE	0x40000000  /* assumes only client accessing */
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 struct cifs_sb_info {
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 	struct rb_root tlink_tree;
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 	spinlock_t tlink_tree_lock;
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 	struct tcon_link *master_tlink;
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 	struct nls_table *local_nls;
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+	unsigned int bsize;
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 	unsigned int rsize;
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 	unsigned int wsize;
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 	unsigned long actimeo; /* attribute cache timeout (jiffies) */
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@@ -71,7 +76,16 @@
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 	char   *mountdata; /* options received at mount time or via DFS refs */
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 	struct delayed_work prune_tlinks;
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 	struct rcu_head rcu;
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+
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+	/* only used when CIFS_MOUNT_USE_PREFIX_PATH is set */
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 	char *prepath;
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+
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+	/*
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+	 * Path initially provided by the mount call. We might connect
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+	 * to something different via DFS but we want to keep it to do
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+	 * failover properly.
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+	 */
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+	char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
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 	/*
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 	 * Indicate whether serverino option was turned off later
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 	 * (cifs_autodisable_serverino) in order to match new mounts.