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 */
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 */
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
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
}
projects / mirror_zfs.git / blobdiff