Author: avg Date: Sun Oct 1 16:51:05 2017 New Revision: 324170 URL: https://svnweb.freebsd.org/changeset/base/324170
Log: MFV r323794: 8605 zfs channel programs: zfs.exists undocumented and non-working illumos/illumos-gate@5f39f884e2035d671ec02148fc4d8420c670bcb4 https://github.com/illumos/illumos-gate/commit/5f39f884e2035d671ec02148fc4d8420c670bcb4 https://www.illumos.org/issues/8605 zfs.exists() in channel programs doesn't return any result, and should have a man page entry. Reviewed by: Paul Dagnelie <p...@delphix.com> Reviewed by: Dan Kimmel <dan.kim...@delphix.com> Reviewed by: Matt Ahrens <mahr...@delphix.com> Approved by: Robert Mustacchi <r...@joyent.com> Author: Chris Williamson <chris.william...@delphix.com> MFC after: 5 weeks X-MFC after: r324163 Modified: head/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c Directory Properties: head/cddl/contrib/opensolaris/ (props changed) head/sys/cddl/contrib/opensolaris/ (props changed) Modified: head/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 ============================================================================== --- head/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 Sun Oct 1 16:48:36 2017 (r324169) +++ head/cddl/contrib/opensolaris/cmd/zfs/zfs-program.8 Sun Oct 1 16:51:05 2017 (r324170) @@ -289,6 +289,18 @@ msg (string) .Bd -ragged -compact -offset "xxxx" Debug message to be printed. .Ed +.It Em zfs.exists(dataset) +Returns true if the given dataset exists, or false if it doesn't. +A fatal error will be thrown if the dataset is not in the target pool. +That is, in a channel program running on rpool, +zfs.exists("rpool/nonexistent_fs") returns false, but +zfs.exists("somepool/fs_that_may_exist") will error. +.Pp +dataset (string) +.Bd -ragged -compact -offset "xxxx" +Dataset to check for existence. +Must be in the target pool. +.Ed .It Em zfs.get_prop(dataset, property) Returns two values. First, a string, number or table containing the property value for the given Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c Sun Oct 1 16:48:36 2017 (r324169) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zcp.c Sun Oct 1 16:51:05 2017 (r324170) @@ -717,7 +717,7 @@ zcp_exists(lua_State *state) return (luaL_error(state, "unexpected error %d", error)); } - return (0); + return (1); } /* _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
