diff options
Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c')
| -rw-r--r-- | cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c b/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c index 27a4144..c38c8c6 100644 --- a/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c +++ b/cddl/contrib/opensolaris/lib/libzfs_core/common/libzfs_core.c @@ -765,6 +765,9 @@ lzc_receive_with_header(const char *snapname, nvlist_t *props, * Roll back this filesystem or volume to its most recent snapshot. * If snapnamebuf is not NULL, it will be filled in with the name * of the most recent snapshot. + * Note that the latest snapshot may change if a new one is concurrently + * created or the current one is destroyed. lzc_rollback_to can be used + * to roll back to a specific latest snapshot. * * Return 0 on success or an errno on failure. */ @@ -788,6 +791,27 @@ lzc_rollback(const char *fsname, char *snapnamebuf, int snapnamelen) } /* + * Roll back this filesystem or volume to the specified snapshot, + * if possible. + * + * Return 0 on success or an errno on failure. + */ +int +lzc_rollback_to(const char *fsname, const char *snapname) +{ + nvlist_t *args; + nvlist_t *result; + int err; + + args = fnvlist_alloc(); + fnvlist_add_string(args, "target", snapname); + err = lzc_ioctl(ZFS_IOC_ROLLBACK, fsname, args, &result); + nvlist_free(args); + nvlist_free(result); + return (err); +} + +/* * Creates bookmarks. * * The bookmarks nvlist maps from name of the bookmark (e.g. "pool/fs#bmark") to |
