/*
- * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/vfs_context.h> /* XXX for AF_MAX */
#include <sys/mount.h>
#include <sys/cdefs.h>
+#include <sys/sysctl.h>
struct label;
uint32_t mnt_ioflags; /* flags for underlying device */
pending_io_t mnt_pending_write_size __attribute__((aligned(sizeof(pending_io_t)))); /* byte count of pending writes */
pending_io_t mnt_pending_read_size __attribute__((aligned(sizeof(pending_io_t)))); /* byte count of pending reads */
-
+ struct timeval mnt_last_write_issued_timestamp;
+ struct timeval mnt_last_write_completed_timestamp;
+ int64_t mnt_max_swappin_available;
+
lck_rw_t mnt_rwlock; /* mutex readwrite lock */
lck_mtx_t mnt_renamelock; /* mutex that serializes renames that change shape of tree */
vnode_t mnt_devvp; /* the device mounted on for local file systems */
* volumes marked 'MNTK_AUTH_OPAQUE'.
*/
int mnt_authcache_ttl;
- /*
- * The proc structure pointer and process ID form a
- * sufficiently unique duple identifying the process
- * hosting this mount point. Set by vfs_markdependency()
- * and utilized in new_vnode() to avoid reclaiming vnodes
- * with this dependency (radar 5192010).
- */
- pid_t mnt_dependent_pid;
- void *mnt_dependent_process;
char fstypename_override[MFSTYPENAMELEN];
};
*/
#define MNT_IOFLAGS_FUA_SUPPORTED 0x00000001
#define MNT_IOFLAGS_UNMAP_SUPPORTED 0x00000002
+#define MNT_IOFLAGS_IOSCHED_SUPPORTED 0x00000004
+#define MNT_IOFLAGS_CSUNMAP_SUPPORTED 0x00000008
+#define MNT_IOFLAGS_SWAPPIN_SUPPORTED 0x00000010
+#define MNT_IOFLAGS_FUSION_DRIVE 0x00000020
/*
* ioqueue depth for devices that don't report one
* because the bits here were broken out from the high bits
* of the mount flags.
*/
+#define MNTK_SWAP_MOUNT 0x00000100 /* we are swapping to this mount */
#define MNTK_DENY_READDIREXT 0x00000200 /* Deny Extended-style readdir's for this volume */
#define MNTK_PERMIT_UNMOUNT 0x00000400 /* Allow (non-forced) unmounts by UIDs other than the one that mounted the volume */
#ifdef NFSCLIENT
#if REV_ENDIAN_FS
#define MNT_REVEND 0x08000000 /* Reverse endian FS */
#endif /* REV_ENDIAN_FS */
-#define MNTK_FRCUNMOUNT 0x10000000 /* Forced unmount wanted. */
#define MNTK_AUTH_OPAQUE 0x20000000 /* authorisation decisions are not made locally */
#define MNTK_AUTH_OPAQUE_ACCESS 0x40000000 /* VNOP_ACCESS is reliable for remote auth */
#define MNTK_EXTENDED_SECURITY 0x80000000 /* extended security supported */
#define MNT_LWAIT 0x00000040 /* wait for unmount op */
#define MNT_LITERWAIT 0x00000080 /* mount in iteration */
#define MNT_LDEAD 0x00000100 /* mount already unmounted*/
+#define MNT_LNOSUB 0x00000200 /* submount - no recursion */
/*
int vfc_vfsflags; /* for optional types */
void * vfc_descptr; /* desc table allocated address */
int vfc_descsize; /* size allocated for desc table */
+ struct sysctl_oid *vfc_sysctl; /* dynamically registered sysctl node */
};
/* vfc_vfsflags: */
#define VFC_VFSPREFLIGHT 0x040
#define VFC_VFSREADDIR_EXTENDED 0x080
#define VFC_VFS64BITREADY 0x100
-#if CONFIG_VFS_FUNNEL
-#define VFC_VFSTHREADSAFE 0x200
-#endif /* CONFIG_VFS_FUNNEL */
#define VFC_VFSNOMACLABEL 0x1000
#define VFC_VFSVNOP_PAGEINV2 0x2000
#define VFC_VFSVNOP_PAGEOUTV2 0x4000
+#define VFC_VFSVNOP_NOUPDATEID_RENAME 0x8000
+#if CONFIG_SECLUDED_RENAME
+#define VFC_VFSVNOP_SECLUDE_RENAME 0x10000
+#endif
-extern int maxvfsconf; /* highest defined filesystem type */
+extern int maxvfstypenum; /* highest defined filesystem type */
extern struct vfstable *vfsconf; /* head of list of filesystem types */
-extern int maxvfsslots; /* Maximum slots available to be used */
-extern int numused_vfsslots; /* number of slots already used */
+extern const int maxvfsslots; /* Maximum statically allocated slots available to be used */
+extern int numused_vfsslots; /* number of statically allocated slots already used */
+extern int numregistered_fses; /* number of total registered filesystems */
/* the following two are xnu private */
struct vfstable * vfstable_add(struct vfstable *);
__BEGIN_DECLS
+extern boolean_t root_is_CF_drive;
extern uint32_t mount_generation;
extern TAILQ_HEAD(mntlist, mount) mountlist;
void mount_list_lock(void);
void vfs_unmountall(void);
int safedounmount(struct mount *, int, vfs_context_t);
int dounmount(struct mount *, int, int, vfs_context_t);
+void dounmount_submounts(struct mount *, int, vfs_context_t);
/* xnu internal api */
void mount_dropcrossref(mount_t, vnode_t, int);
/* Private NFS spi */
#define KERNEL_MOUNT_NOAUTH 0x01 /* Don't check the UID of the directory we are mounting on */
#define KERNEL_MOUNT_PERMIT_UNMOUNT 0x02 /* Allow (non-forced) unmounts by users other the one who mounted the volume */
-#if NFSCLIENT
+#if NFSCLIENT || DEVFS || ROUTEFS
/*
* NOTE: kernel_mount() does not force MNT_NOSUID, MNT_NOEXEC, or MNT_NODEC for non-privileged
* mounting credentials, as the mount(2) system call does.
#endif
/* throttled I/O api */
+
+/* returned by throttle_io_will_be_throttled */
+#define THROTTLE_DISENGAGED 0
+#define THROTTLE_ENGAGED 1
+#define THROTTLE_NOW 2
+
int throttle_get_io_policy(struct uthread **ut);
+int throttle_get_passive_io_policy(struct uthread **ut);
int throttle_io_will_be_throttled(int lowpri_window_msecs, mount_t mp);
-void throttle_info_update_by_mount(mount_t mp);
-void unthrottle_thread(uthread_t);
+void *throttle_info_update_by_mount(mount_t mp);
+void rethrottle_thread(uthread_t ut);
+void throttle_info_reset_window(uthread_t ut);
+
/* throttled I/O helper function */
/* convert the lowest bit to a device index */
extern int num_trailing_0(uint64_t n);
+/* sync lock */
+extern lck_mtx_t * sync_mtx_lck;
+
+extern int sync_timeout;
+
__END_DECLS
#endif /* !_SYS_MOUNT_INTERNAL_H_ */
projects / apple / xnu.git / blobdiff