X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=include%2Fsys%2Fzfs_vfsops.h;h=b59ace5b1996b151ee06ea0e4ad7b0384d8e1ee9;hb=1de321e6260f5b83eb943b6ce2166a3879f42df4;hp=7622f0308ee4deed10eb40290d617bb53fa95583;hpb=0de19dad9cbca9ac89aea1c7742f131713ef8012;p=mirror_zfs.git

diff --git a/include/sys/zfs_vfsops.h b/include/sys/zfs_vfsops.h
index 7622f0308..b59ace5b1 100644
--- a/include/sys/zfs_vfsops.h
+++ b/include/sys/zfs_vfsops.h
@@ -41,11 +41,33 @@ extern "C" {
 struct zfs_sb;
 struct znode;
 
+typedef struct zfs_mntopts {
+	char		*z_osname;	/* Objset name */
+	char		*z_mntpoint;	/* Primary mount point */
+	uint64_t	z_xattr;
+	boolean_t	z_readonly;
+	boolean_t	z_do_readonly;
+	boolean_t	z_setuid;
+	boolean_t	z_do_setuid;
+	boolean_t	z_exec;
+	boolean_t	z_do_exec;
+	boolean_t	z_devices;
+	boolean_t	z_do_devices;
+	boolean_t	z_do_xattr;
+	boolean_t	z_atime;
+	boolean_t	z_do_atime;
+	boolean_t	z_relatime;
+	boolean_t	z_do_relatime;
+	boolean_t	z_nbmand;
+	boolean_t	z_do_nbmand;
+} zfs_mntopts_t;
+
 typedef struct zfs_sb {
-	struct vfsmount	*z_vfs;		/* generic vfs struct */
 	struct super_block *z_sb;	/* generic super_block */
+	struct backing_dev_info z_bdi;	/* generic backing dev info */
 	struct zfs_sb	*z_parent;	/* parent fs */
 	objset_t	*z_os;		/* objset reference */
+	zfs_mntopts_t	*z_mntopts;	/* passed mount options */
 	uint64_t	z_flags;	/* super_block flags */
 	uint64_t	z_root;		/* id of root znode */
 	uint64_t	z_unlinkedobj;	/* id of unlinked zapobj */
@@ -60,15 +82,21 @@ typedef struct zfs_sb {
 	struct zfs_fuid_info	*z_fuid_replay; /* fuid info for replay */
 	zilog_t		*z_log;		/* intent log pointer */
 	uint_t		z_acl_inherit;	/* acl inheritance behavior */
+	uint_t		z_acl_type;	/* type of ACL usable on this FS */
 	zfs_case_t	z_case;		/* case-sense */
 	boolean_t	z_utf8;		/* utf8-only */
 	int		z_norm;		/* normalization flags */
 	boolean_t	z_atime;	/* enable atimes mount option */
+	boolean_t	z_relatime;	/* enable relatime mount option */
 	boolean_t	z_unmounted;	/* unmounted */
-	rrwlock_t	z_teardown_lock;
+	rrmlock_t	z_teardown_lock;
 	krwlock_t	z_teardown_inactive_lock;
-	list_t		z_all_znodes;	/* all vnodes in the fs */
+	list_t		z_all_znodes;	/* all znodes in the fs */
+	uint64_t	z_nr_znodes;	/* number of znodes in the fs */
+	unsigned long	z_rollback_time; /* last online rollback time */
+	unsigned long	z_snap_defer_time; /* last snapshot unmount deferal */
 	kmutex_t	z_znodes_lock;	/* lock for z_all_znodes */
+	arc_prune_t	*z_arc_prune;	/* called by ARC to prune caches */
 	struct inode	*z_ctldir;	/* .zfs directory inode */
 	boolean_t	z_show_ctldir;	/* expose .zfs in the root dir */
 	boolean_t	z_issnap;	/* true if this is a snapshot */
@@ -76,45 +104,31 @@ typedef struct zfs_sb {
 	boolean_t	z_use_fuids;	/* version allows fuids */
 	boolean_t	z_replay;	/* set during ZIL replay */
 	boolean_t	z_use_sa;	/* version allow system attributes */
+	boolean_t	z_xattr_sa;	/* allow xattrs to be stores as SA */
 	uint64_t	z_version;	/* ZPL version */
 	uint64_t	z_shares_dir;	/* hidden shares dir */
 	kmutex_t	z_lock;
 	uint64_t	z_userquota_obj;
 	uint64_t	z_groupquota_obj;
+	uint64_t	z_userobjquota_obj;
+	uint64_t	z_groupobjquota_obj;
 	uint64_t	z_replay_eof;	/* New end of file - replay only */
 	sa_attr_type_t	*z_attr_table;	/* SA attr mapping->id */
-#define	ZFS_OBJ_MTX_SZ	64
-	kmutex_t	z_hold_mtx[ZFS_OBJ_MTX_SZ];	/* znode hold locks */
+	uint64_t	z_hold_size;	/* znode hold array size */
+	avl_tree_t	*z_hold_trees;	/* znode hold trees */
+	kmutex_t	*z_hold_locks;	/* znode hold locks */
 } zfs_sb_t;
 
 #define	ZFS_SUPER_MAGIC	0x2fc12fc1
 
-#define	ZSB_XATTR_USER	0x0001		/* Enable user xattrs */
-
-
-/*
- * Minimal snapshot helpers, the bulk of the Linux snapshot implementation
- * lives in the zpl_snap.c file which is part of the zpl source.
- */
-#define	ZFS_CTLDIR_NAME		".zfs"
-
-#define	zfs_has_ctldir(zdp)	\
-	((zdp)->z_id == ZTOZSB(zdp)->z_root && \
-	(ZTOZSB(zdp)->z_ctldir != NULL))
-#define	zfs_show_ctldir(zdp)	\
-	(zfs_has_ctldir(zdp) &&	\
-	(ZTOZSB(zdp)->z_show_ctldir))
-
-#define	ZFSCTL_INO_ROOT		0x1
-#define	ZFSCTL_INO_SNAPDIR	0x2
-#define	ZFSCTL_INO_SHARES	0x3
+#define	ZSB_XATTR	0x0001		/* Enable user xattrs */
 
 /*
  * Allow a maximum number of links.  While ZFS does not internally limit
- * this most Linux filesystems do.  It's probably a good idea to limit
- * this to a large value until it is validated that this is safe.
+ * this the inode->i_nlink member is defined as an unsigned int.  To be
+ * safe we use 2^31-1 as the limit.
  */
-#define ZFS_LINK_MAX		65536
+#define	ZFS_LINK_MAX		((1U << 31) - 1U)
 
 /*
  * Normal filesystems (those not under .zfs/snapshot) have a total
@@ -178,19 +192,32 @@ extern boolean_t zfs_owner_overquota(zfs_sb_t *zsb, struct znode *,
     boolean_t isgroup);
 extern boolean_t zfs_fuid_overquota(zfs_sb_t *zsb, boolean_t isgroup,
     uint64_t fuid);
+extern boolean_t zfs_fuid_overobjquota(zfs_sb_t *zsb, boolean_t isgroup,
+    uint64_t fuid);
 extern int zfs_set_version(zfs_sb_t *zsb, uint64_t newvers);
-extern int zfs_sb_create(const char *name, zfs_sb_t **zsbp);
+extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop,
+    uint64_t *value);
+extern zfs_mntopts_t *zfs_mntopts_alloc(void);
+extern void zfs_mntopts_free(zfs_mntopts_t *zmo);
+extern int zfs_sb_create(const char *name, zfs_mntopts_t *zmo,
+    zfs_sb_t **zsbp);
+extern int zfs_sb_setup(zfs_sb_t *zsb, boolean_t mounting);
 extern void zfs_sb_free(zfs_sb_t *zsb);
+extern int zfs_sb_prune(struct super_block *sb, unsigned long nr_to_scan,
+    int *objects);
+extern int zfs_sb_teardown(zfs_sb_t *zsb, boolean_t unmounting);
 extern int zfs_check_global_label(const char *dsname, const char *hexsl);
+extern boolean_t zfs_is_readonly(zfs_sb_t *zsb);
 
 extern int zfs_register_callbacks(zfs_sb_t *zsb);
 extern void zfs_unregister_callbacks(zfs_sb_t *zsb);
-extern int zfs_domount(struct super_block *sb, void *data, int silent);
+extern int zfs_domount(struct super_block *sb, zfs_mntopts_t *zmo, int silent);
+extern void zfs_preumount(struct super_block *sb);
 extern int zfs_umount(struct super_block *sb);
-extern int zfs_remount(struct super_block *sb, int *flags, char *data);
+extern int zfs_remount(struct super_block *sb, int *flags, zfs_mntopts_t *zmo);
 extern int zfs_root(zfs_sb_t *zsb, struct inode **ipp);
 extern int zfs_statvfs(struct dentry *dentry, struct kstatfs *statp);
-extern int zfs_vget(struct vfsmount *vfsp, struct inode **ipp, fid_t *fidp);
+extern int zfs_vget(struct super_block *sb, struct inode **ipp, fid_t *fidp);
 
 #ifdef	__cplusplus
 }