Add support for user/group dnode accounting & quota

[mirror_zfs.git] / include / sys / zfs_vfsops.h

diff --git a/include/sys/zfs_vfsops.h b/include/sys/zfs_vfsops.h
index 7dca3369d58193707e6f20aebc6264ed58159ca2..b59ace5b1996b151ee06ea0e4ad7b0384d8e1ee9 100644 (file)
--- 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 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 */
@@ -65,16 +87,17 @@ typedef struct zfs_sb {
        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 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 */
-       avl_tree_t      z_ctldir_snaps; /* .zfs/snapshot entries */
-       kmutex_t        z_ctldir_lock;  /* .zfs ctldir lock */
        boolean_t       z_show_ctldir;  /* expose .zfs in the root dir */
        boolean_t       z_issnap;       /* true if this is a snapshot */
        boolean_t       z_vscan;        /* virus scan on/off */
@@ -87,10 +110,13 @@ typedef struct zfs_sb {
        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  256
-       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
@@ -166,10 +192,15 @@ 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_get_zplprop(objset_t *os, zfs_prop_t prop,
     uint64_t *value);
-extern int zfs_sb_create(const char *name, zfs_sb_t **zsbp);
+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,
@@ -180,10 +211,10 @@ 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 super_block *sb, struct inode **ipp, fid_t *fidp);