Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/coda/coda_psdev.h b/fs/coda/coda_psdev.h
new file mode 100644
index 0000000..52da08c
--- /dev/null
+++ b/fs/coda/coda_psdev.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CODA_PSDEV_H
+#define __CODA_PSDEV_H
+
+#include <linux/backing-dev.h>
+#include <linux/magic.h>
+#include <linux/mutex.h>
+
+#define CODA_PSDEV_MAJOR 67
+#define MAX_CODADEVS 5 /* how many do we allow */
+
+struct kstatfs;
+
+/* messages between coda filesystem in kernel and Venus */
+struct upc_req {
+ struct list_head uc_chain;
+ caddr_t uc_data;
+ u_short uc_flags;
+ u_short uc_inSize; /* Size is at most 5000 bytes */
+ u_short uc_outSize;
+ u_short uc_opcode; /* copied from data to save lookup */
+ int uc_unique;
+ wait_queue_head_t uc_sleep; /* process' wait queue */
+};
+
+#define CODA_REQ_ASYNC 0x1
+#define CODA_REQ_READ 0x2
+#define CODA_REQ_WRITE 0x4
+#define CODA_REQ_ABORT 0x8
+
+/* communication pending/processing queues */
+struct venus_comm {
+ u_long vc_seq;
+ wait_queue_head_t vc_waitq; /* Venus wait queue */
+ struct list_head vc_pending;
+ struct list_head vc_processing;
+ int vc_inuse;
+ struct super_block *vc_sb;
+ struct mutex vc_mutex;
+};
+
+static inline struct venus_comm *coda_vcp(struct super_block *sb)
+{
+ return (struct venus_comm *)((sb)->s_fs_info);
+}
+
+/* upcalls */
+int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
+int venus_getattr(struct super_block *sb, struct CodaFid *fid,
+ struct coda_vattr *attr);
+int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
+int venus_lookup(struct super_block *sb, struct CodaFid *fid,
+ const char *name, int length, int *type,
+ struct CodaFid *resfid);
+int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
+ kuid_t uid);
+int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
+ struct file **f);
+int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length,
+ struct CodaFid *newfid, struct coda_vattr *attrs);
+int venus_create(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length, int excl, int mode,
+ struct CodaFid *newfid, struct coda_vattr *attrs);
+int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length);
+int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
+ const char *name, int length);
+int venus_readlink(struct super_block *sb, struct CodaFid *fid,
+ char *buffer, int *length);
+int venus_rename(struct super_block *sb, struct CodaFid *new_fid,
+ struct CodaFid *old_fid, size_t old_length,
+ size_t new_length, const char *old_name,
+ const char *new_name);
+int venus_link(struct super_block *sb, struct CodaFid *fid,
+ struct CodaFid *dirfid, const char *name, int len );
+int venus_symlink(struct super_block *sb, struct CodaFid *fid,
+ const char *name, int len, const char *symname, int symlen);
+int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
+int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
+ unsigned int cmd, struct PioctlData *data);
+int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out,
+ size_t nbytes);
+int venus_fsync(struct super_block *sb, struct CodaFid *fid);
+int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
+int venus_access_intent(struct super_block *sb, struct CodaFid *fid,
+ bool *access_intent_supported,
+ size_t count, loff_t ppos, int type);
+
+/*
+ * Statistics
+ */
+
+extern struct venus_comm coda_comms[];
+#endif