/*
* Returns ESRCH if bookmark is not found.
*/
static int
dsl_dataset_bmark_lookup(dsl_dataset_t *ds, const char *shortname,
zfs_bookmark_phys_t *bmark_phys)
{
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
uint64_t bmark_zapobj = ds->ds_bookmarks;
matchtype_t mt = 0;
int err;
if (bmark_zapobj == 0)
return (SET_ERROR(ESRCH));
if (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_CI_DATASET)
mt = MT_NORMALIZE;
/*
* Zero out the bookmark in case the one stored on disk
* is in an older, shorter format.
*/
bzero(bmark_phys, sizeof (*bmark_phys));
err = zap_lookup_norm(mos, bmark_zapobj, shortname, sizeof (uint64_t),
sizeof (*bmark_phys) / sizeof (uint64_t), bmark_phys, mt,
NULL, 0, NULL);
return (err == ENOENT ? ESRCH : err);
}
int
dmu_snapshot_realname(objset_t *os, char *name, char *real, int maxlen,
boolean_t *conflict)
{
dsl_dataset_t *ds = os->os->os_dsl_dataset;
uint64_t ignored;
if (ds->ds_phys->ds_snapnames_zapobj == 0)
return (ENOENT);
return (zap_lookup_norm(ds->ds_dir->dd_pool->dp_meta_objset,
ds->ds_phys->ds_snapnames_zapobj, name, 8, 1, &ignored, MT_FIRST,
real, maxlen, conflict));
}
/*
* zfs_match_find() is used by zfs_dirent_lock() to peform zap lookups
* of names after deciding which is the appropriate lookup interface.
*/
static int
zfs_match_find(zfs_sb_t *zsb, znode_t *dzp, char *name, boolean_t exact,
boolean_t update, int *deflags, pathname_t *rpnp, uint64_t *zoid)
{
boolean_t conflict = B_FALSE;
int error;
if (zsb->z_norm) {
matchtype_t mt = MT_FIRST;
size_t bufsz = 0;
char *buf = NULL;
if (rpnp) {
buf = rpnp->pn_buf;
bufsz = rpnp->pn_bufsize;
}
if (exact)
mt = MT_EXACT;
/*
* In the non-mixed case we only expect there would ever
* be one match, but we need to use the normalizing lookup.
*/
error = zap_lookup_norm(zsb->z_os, dzp->z_id, name, 8, 1,
zoid, mt, buf, bufsz, &conflict);
} else {
error = zap_lookup(zsb->z_os, dzp->z_id, name, 8, 1, zoid);
}
/*
* Allow multiple entries provided the first entry is
* the object id. Non-zpl consumers may safely make
* use of the additional space.
*
* XXX: This should be a feature flag for compatibility
*/
if (error == EOVERFLOW)
error = 0;
if (zsb->z_norm && !error && deflags)
*deflags = conflict ? ED_CASE_CONFLICT : 0;
*zoid = ZFS_DIRENT_OBJ(*zoid);
#ifdef HAVE_DNLC
if (error == ENOENT && update)
dnlc_update(ZTOI(dzp), name, DNLC_NO_VNODE);
#endif /* HAVE_DNLC */
return (error);
}
/*
* zfs_match_find() is used by zfs_dirent_lookup() to peform zap lookups
* of names after deciding which is the appropriate lookup interface.
*/
static int
zfs_match_find(zfsvfs_t *zfsvfs, znode_t *dzp, const char *name,
boolean_t exact, uint64_t *zoid)
{
int error;
if (zfsvfs->z_norm) {
matchtype_t mt = exact? MT_EXACT : MT_FIRST;
/*
* In the non-mixed case we only expect there would ever
* be one match, but we need to use the normalizing lookup.
*/
error = zap_lookup_norm(zfsvfs->z_os, dzp->z_id, name, 8, 1,
zoid, mt, NULL, 0, NULL);
} else {
error = zap_lookup(zfsvfs->z_os, dzp->z_id, name, 8, 1, zoid);
}
*zoid = ZFS_DIRENT_OBJ(*zoid);
return (error);
}
/*
* zfs_match_find() is used by zfs_dirent_lock() to peform zap lookups
* of names after deciding which is the appropriate lookup interface.
*/
static int
zfs_match_find(zfs_sb_t *zsb, znode_t *dzp, char *name, boolean_t exact,
boolean_t update, int *deflags, pathname_t *rpnp, uint64_t *zoid)
{
int error;
if (zsb->z_norm) {
matchtype_t mt = MT_FIRST;
boolean_t conflict = B_FALSE;
size_t bufsz = 0;
char *buf = NULL;
if (rpnp) {
buf = rpnp->pn_buf;
bufsz = rpnp->pn_bufsize;
}
if (exact)
mt = MT_EXACT;
/*
* In the non-mixed case we only expect there would ever
* be one match, but we need to use the normalizing lookup.
*/
error = zap_lookup_norm(zsb->z_os, dzp->z_id, name, 8, 1,
zoid, mt, buf, bufsz, &conflict);
if (!error && deflags)
*deflags = conflict ? ED_CASE_CONFLICT : 0;
} else {
error = zap_lookup(zsb->z_os, dzp->z_id, name, 8, 1, zoid);
}
*zoid = ZFS_DIRENT_OBJ(*zoid);
#ifdef HAVE_DNLC
if (error == ENOENT && update)
dnlc_update(ZTOI(dzp), name, DNLC_NO_VNODE);
#endif /* HAVE_DNLC */
return (error);
}
/*
* Returns ESRCH if bookmark is not found.
*/
static int
dsl_dataset_bmark_lookup(dsl_dataset_t *ds, const char *shortname,
zfs_bookmark_phys_t *bmark_phys)
{
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
uint64_t bmark_zapobj = ds->ds_bookmarks;
matchtype_t mt;
int err;
if (bmark_zapobj == 0)
return (SET_ERROR(ESRCH));
if (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_CI_DATASET)
mt = MT_FIRST;
else
mt = MT_EXACT;
err = zap_lookup_norm(mos, bmark_zapobj, shortname, sizeof (uint64_t),
sizeof (*bmark_phys) / sizeof (uint64_t), bmark_phys, mt,
NULL, 0, NULL);
return (err == ENOENT ? ESRCH : err);
}
