Differential D30848 Diff 93764 stand/libsa/zfs/zfsimpl.c

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stand/libsa/zfs/zfsimpl.c

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#include "zfsimpl.h"		#include "zfsimpl.h"
#include "zfssubr.c"		#include "zfssubr.c"

#ifdef HAS_ZSTD_ZFS		#ifdef HAS_ZSTD_ZFS
extern int zstd_init(void);		extern int zstd_init(void);
#endif		#endif

struct zfsmount {		struct zfsmount {
		char *path;
const spa_t *spa;		const spa_t *spa;
objset_phys_t objset;		objset_phys_t objset;
uint64_t rootobj;		uint64_t rootobj;
		STAILQ_ENTRY(zfsmount) next;
};		};
static struct zfsmount zfsmount __unused;

		typedef STAILQ_HEAD(zfs_mnt_list, zfsmount) zfs_mnt_list_t;
		static zfs_mnt_list_t zfsmount = STAILQ_HEAD_INITIALIZER(zfsmount);

/*		/*
* The indirect_child_t represents the vdev that we will read from, when we		* The indirect_child_t represents the vdev that we will read from, when we
* need to read all copies of the data (e.g. for scrub or reconstruction).		* need to read all copies of the data (e.g. for scrub or reconstruction).
* For plain (non-mirror) top-level vdevs (i.e. is_vdev is not a mirror),		* For plain (non-mirror) top-level vdevs (i.e. is_vdev is not a mirror),
* ic_vdev is the same as is_vdev. However, for mirror top-level vdevs,		* ic_vdev is the same as is_vdev. However, for mirror top-level vdevs,
* ic_vdev is a child of the mirror.		* ic_vdev is a child of the mirror.
*/		*/
typedef struct indirect_child {		typedef struct indirect_child {
▲ Show 20 Lines • Show All 3,252 Lines • ▼ Show 20 Lines	zfs_get_root(const spa_t spa, uint64_t objid)
* to find the dataset object and from that the object set itself.		* to find the dataset object and from that the object set itself.
*/		*/
dsl_dir_phys_t dd = (dsl_dir_phys_t )&dir.dn_bonus;		dsl_dir_phys_t dd = (dsl_dir_phys_t )&dir.dn_bonus;
*objid = dd->dd_head_dataset_obj;		*objid = dd->dd_head_dataset_obj;
return (0);		return (0);
}		}

static int		static int
zfs_mount(const spa_t spa, uint64_t rootobj, struct zfsmount mount)		zfs_mount_impl(const spa_t spa, uint64_t rootobj, struct zfsmount mount)
{		{

mount->spa = spa;		mount->spa = spa;

/*		/*
* Find the root object set if not explicitly provided		* Find the root object set if not explicitly provided
*/		*/
if (rootobj == 0 && zfs_get_root(spa, &rootobj)) {		if (rootobj == 0 && zfs_get_root(spa, &rootobj)) {
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