X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Futils%2Fmount_utils.h;h=013bb4658465b9f541a33b5175d6897a4a3bfe91;hb=81aa70a14c7dcadd593ed987d3f92bd05d120a0f;hp=f070f3af2b5f2bc1410b68100a41261583050934;hpb=e3a7c58aebafce40323db54bf6056029e5af4a70;p=fs%2Flustre-release.git

diff --git a/lustre/utils/mount_utils.h b/lustre/utils/mount_utils.h
index f070f3a..013bb46 100644
--- a/lustre/utils/mount_utils.h
+++ b/lustre/utils/mount_utils.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Whamcloud, Inc.
+ * Copyright (c) 2012, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -37,10 +37,132 @@
 #ifndef _MOUNT_UTILS_H_
 #define _MOUNT_UTILS_H_
 
+/* Some of the userland headers for libzfs also require
+ * zfs/spl linux kernel headers, but including these pull
+ * in linux kernel headers which conflicts with the
+ * userland version of libcfs. So the solution is tell the
+ * libzfs user land headrs that the zfs/spl kernel headers
+ * are already included even if this is not the case.
+ */
+#ifdef HAVE_ZFS_OSD
+#define _SPL_ZFS_H
+#define _SPL_SIGNAL_H
+#endif
 #include <lustre_disk.h>
+#include <lustre_param.h>
+
+extern char *progname;
+extern int verbose;
+extern int failover;
+
+#define vprint(fmt, arg...) if (verbose > 0) printf(fmt, ##arg)
+#define verrprint(fmt, arg...) if (verbose >= 0) fprintf(stderr, fmt, ##arg)
+
+/* mo_flags */
+#define MO_IS_LOOP		0x01
+#define MO_FORCEFORMAT		0x02
+#define MO_FAILOVER		0x04
+#define MO_DRYRUN		0x08
+#define MO_QUOTA		0x10
+
+#define MAX_LOOP_DEVICES	16
+#define INDEX_UNASSIGNED	0xFFFF
+
+/* used to describe the options to format the lustre disk, not persistent */
+struct mkfs_opts {
+	struct lustre_disk_data	mo_ldd; /* to be written in MOUNT_DATA_FILE */
+	char	mo_device[128];   /* disk device name */
+	char	**mo_pool_vdevs;  /* list of pool vdevs */
+	char	mo_loopdev[128];  /* in case a loop dev is needed */
+	char	mo_mkfsopts[512]; /* options to the backing-store mkfs */
+	char	*mo_mountopts;    /* mount options for backing fs */
+	__u64	mo_device_kb;     /* in KB */
+	int	mo_stripe_count;
+	int	mo_flags;
+	int	mo_mgs_failnodes;
+};
+
+/* used to describe the options to mount the lustre disk */
+struct mount_opts {
+	struct lustre_disk_data	 mo_ldd;
+	char	*mo_orig_options;
+	char	*mo_usource;		/* user-specified mount device */
+	char	*mo_source;		/* our mount device name */
+	char	 mo_target[PATH_MAX];	/* mount directory */
+	int	 mo_nomtab;
+	int	 mo_fake;
+	int	 mo_force;
+	int	 mo_retry;
+	int	 mo_have_mgsnid;
+	int	 mo_md_stripe_cache_size;
+	int	 mo_nosvc;
+};
 
-void fatal(void);
-int run_command(char *, int);
 int get_mountdata(char *, struct lustre_disk_data *);
 
+#define MT_STR(data)   mt_str((data)->ldd_mount_type)
+
+#undef IS_MDT
+#define IS_MDT(data)   ((data)->ldd_flags & LDD_F_SV_TYPE_MDT)
+#undef IS_OST
+#define IS_OST(data)   ((data)->ldd_flags & LDD_F_SV_TYPE_OST)
+#undef IS_MGS
+#define IS_MGS(data)  ((data)->ldd_flags & LDD_F_SV_TYPE_MGS)
+
+/* mkfs/mount helper functions */
+void fatal(void);
+int run_command_err(char *cmd, int cmdsz, char *error_msg);
+int run_command(char *cmd, int cmdsz);
+int add_param(char *buf, char *key, char *val);
+int append_param(char *buf, char *key, char *val, char sep);
+int get_param(char *buf, char *key, char **val);
+char *strscat(char *dst, char *src, int buflen);
+char *strscpy(char *dst, char *src, int buflen);
+int check_mtab_entry(char *spec1, char *spec2, char *mntpt, char *type);
+int update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
+		      int flags, int freq, int pass);
+int check_mountfsoptions(char *mountopts, char *wanted_mountopts);
+void trim_mountfsoptions(char *s);
+__u64 get_device_size(char* device);
+
+/* loopback helper functions */
+int file_create(char *path, __u64 size);
+int loop_format(struct mkfs_opts *mop);
+int loop_setup(struct mkfs_opts *mop);
+int loop_cleanup(struct mkfs_opts *mop);
+
+/* generic target support */
+int osd_write_ldd(struct mkfs_opts *mop);
+int osd_read_ldd(char *dev, struct lustre_disk_data *ldd);
+int osd_is_lustre(char *dev, unsigned *mount_type);
+int osd_make_lustre(struct mkfs_opts *mop);
+int osd_prepare_lustre(struct mkfs_opts *mop,
+		       char *wanted_mountopts, size_t len);
+int osd_fix_mountopts(struct mkfs_opts *mop, char *mountopts, size_t len);
+int osd_tune_lustre(char *dev, struct mount_opts *mop);
+int osd_label_lustre(struct mount_opts *mop);
+int osd_enable_quota(struct mkfs_opts *mop);
+int osd_init(void);
+void osd_fini(void);
+
+struct module_backfs_ops {
+	int	(*init)(void);
+	void	(*fini)(void);
+	int	(*read_ldd)(char *ds,  struct lustre_disk_data *ldd);
+	int	(*write_ldd)(struct mkfs_opts *mop);
+	int	(*is_lustre)(char *dev, enum ldd_mount_type *mount_type);
+	int	(*make_lustre)(struct mkfs_opts *mop);
+	int	(*prepare_lustre)(struct mkfs_opts *mop,
+				  char *wanted_mountopts, size_t len);
+	int	(*fix_mountopts)(struct mkfs_opts *mop,
+				 char *mountopts, size_t len);
+	int	(*tune_lustre)(char *dev, struct mount_opts *mop);
+	int	(*label_lustre)(struct mount_opts *mop);
+	int	(*enable_quota)(struct mkfs_opts *mop);
+	void   *dl_handle;
+};
+
+struct module_backfs_ops *load_backfs_module(enum ldd_mount_type mount_type);
+void unload_backfs_ops(struct module_backfs_ops *ops);
+
 #endif