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author | avg <avg@FreeBSD.org> | 2016-08-15 08:49:07 +0000 |
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committer | avg <avg@FreeBSD.org> | 2016-08-15 08:49:07 +0000 |
commit | 426c6a4a859c1fa81206fd40f930ebc7016b1988 (patch) | |
tree | 6717d1fbc4a8871412588b6bf18a7a70bc99ea08 | |
parent | 399bce4a6d7beef1dc58e330c47c04965b97cd2e (diff) | |
download | FreeBSD-src-426c6a4a859c1fa81206fd40f930ebc7016b1988.zip FreeBSD-src-426c6a4a859c1fa81206fd40f930ebc7016b1988.tar.gz |
MFC r303086: 7164 zdb should be able to open the root dataset
-rw-r--r-- | cddl/contrib/opensolaris/cmd/zdb/zdb.8 | 11 | ||||
-rw-r--r-- | cddl/contrib/opensolaris/cmd/zdb/zdb.c | 18 |
2 files changed, 28 insertions, 1 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.8 b/cddl/contrib/opensolaris/cmd/zdb/zdb.8 index 4ef437e..6ae25c3 100644 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.8 +++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.8 @@ -86,6 +86,17 @@ pool, and is inherently unstable. The precise output of most invocations is not documented, a knowledge of ZFS internals is assumed. .Pp +If the +.Ar dataset +argument does not contain any +.Sy / +or +.Sy @ +characters, it is interpreted as a pool name. +The root dataset can be specified as +.Pa pool Ns Sy / +(pool name followed by a slash). +.Pp When operating on an imported and active pool it is possible, though unlikely, that zdb may interpret inconsistent pool data and behave erratically. .Sh OPTIONS diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c index 564460a..c97cd36 100644 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c +++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.c @@ -3560,6 +3560,7 @@ main(int argc, char **argv) uint64_t max_txg = UINT64_MAX; int rewind = ZPOOL_NEVER_REWIND; char *spa_config_path_env; + boolean_t target_is_spa = B_TRUE; (void) setrlimit(RLIMIT_NOFILE, &rl); (void) enable_extended_FILE_stdio(-1, -1); @@ -3739,8 +3740,23 @@ main(int argc, char **argv) } } + if (strpbrk(target, "/@") != NULL) { + size_t targetlen; + + target_is_spa = B_FALSE; + /* + * Remove any trailing slash. Later code would get confused + * by it, but we want to allow it so that "pool/" can + * indicate that we want to dump the topmost filesystem, + * rather than the whole pool. + */ + targetlen = strlen(target); + if (targetlen != 0 && target[targetlen - 1] == '/') + target[targetlen - 1] = '\0'; + } + if (error == 0) { - if (strpbrk(target, "/@") == NULL || dump_opt['R']) { + if (target_is_spa || dump_opt['R']) { error = spa_open_rewind(target, &spa, FTAG, policy, NULL); if (error) { |