From 32949f2560bf35ec86dfa5d984514908e0eb3ecc Mon Sep 17 00:00:00 2001 From: Umer Saleem Date: Sat, 2 Sep 2023 05:25:11 +0500 Subject: [PATCH] Relax error reporting in zpool import and zpool split For zpool import and zpool split, zpool_enable_datasets is called to mount and share all datasets in a pool. If there is an error while mounting or sharing any dataset in the pool, the status of import or split is reported as failure. However, the changes do show up in zpool list. This commit updates the error reporting in zpool import and zpool split path. More descriptive messages are shown to user in case there is an error during mount or share. Errors in mount or share do not effect the overall status of zpool import and zpool split. Reviewed-by: Brian Behlendorf Reviewed-by: Alexander Motin Signed-off-by: Umer Saleem Closes #15216 --- cmd/zpool/zpool_main.c | 34 +++++++++++++++++++++++----------- include/libzfs.h | 1 + lib/libzfs/libzfs_mount.c | 4 ++-- 3 files changed, 26 insertions(+), 13 deletions(-) diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c index 10a3b5b14..6d0dae8d8 100644 --- a/cmd/zpool/zpool_main.c +++ b/cmd/zpool/zpool_main.c @@ -3143,6 +3143,7 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts, nvlist_t *props, int flags) { int ret = 0; + int ms_status = 0; zpool_handle_t *zhp; const char *name; uint64_t version; @@ -3232,10 +3233,15 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts, ret = 1; if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL && - !(flags & ZFS_IMPORT_ONLY) && - zpool_enable_datasets(zhp, mntopts, 0) != 0) { - zpool_close(zhp); - return (1); + !(flags & ZFS_IMPORT_ONLY)) { + ms_status = zpool_enable_datasets(zhp, mntopts, 0); + if (ms_status == EZFS_SHAREFAILED) { + (void) fprintf(stderr, gettext("Import was " + "successful, but unable to share some datasets")); + } else if (ms_status == EZFS_MOUNTFAILED) { + (void) fprintf(stderr, gettext("Import was " + "successful, but unable to mount some datasets")); + } } zpool_close(zhp); @@ -6755,6 +6761,7 @@ zpool_do_split(int argc, char **argv) char *mntopts = NULL; splitflags_t flags; int c, ret = 0; + int ms_status = 0; boolean_t loadkeys = B_FALSE; zpool_handle_t *zhp; nvlist_t *config, *props = NULL; @@ -6891,13 +6898,18 @@ zpool_do_split(int argc, char **argv) ret = 1; } - if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL && - zpool_enable_datasets(zhp, mntopts, 0) != 0) { - ret = 1; - (void) fprintf(stderr, gettext("Split was successful, but " - "the datasets could not all be mounted\n")); - (void) fprintf(stderr, gettext("Try doing '%s' with a " - "different altroot\n"), "zpool import"); + if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL) { + ms_status = zpool_enable_datasets(zhp, mntopts, 0); + if (ms_status == EZFS_SHAREFAILED) { + (void) fprintf(stderr, gettext("Split was successful, " + "datasets are mounted but sharing of some datasets " + "has failed\n")); + } else if (ms_status == EZFS_MOUNTFAILED) { + (void) fprintf(stderr, gettext("Split was successful" + ", but some datasets could not be mounted\n")); + (void) fprintf(stderr, gettext("Try doing '%s' with a " + "different altroot\n"), "zpool import"); + } } zpool_close(zhp); nvlist_free(config); diff --git a/include/libzfs.h b/include/libzfs.h index a7037e3e6..fa05b7921 100644 --- a/include/libzfs.h +++ b/include/libzfs.h @@ -156,6 +156,7 @@ typedef enum zfs_error { EZFS_NOT_USER_NAMESPACE, /* a file is not a user namespace */ EZFS_CKSUM, /* insufficient replicas */ EZFS_RESUME_EXISTS, /* Resume on existing dataset without force */ + EZFS_SHAREFAILED, /* filesystem share failed */ EZFS_UNKNOWN } zfs_error_t; diff --git a/lib/libzfs/libzfs_mount.c b/lib/libzfs/libzfs_mount.c index 5d1fe651c..b38ad8809 100644 --- a/lib/libzfs/libzfs_mount.c +++ b/lib/libzfs/libzfs_mount.c @@ -1300,7 +1300,7 @@ zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags) zfs_foreach_mountpoint(zhp->zpool_hdl, cb.cb_handles, cb.cb_used, zfs_mount_one, &ms, B_TRUE); if (ms.ms_mntstatus != 0) - ret = ms.ms_mntstatus; + ret = EZFS_MOUNTFAILED; /* * Share all filesystems that need to be shared. This needs to be @@ -1311,7 +1311,7 @@ zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags) zfs_foreach_mountpoint(zhp->zpool_hdl, cb.cb_handles, cb.cb_used, zfs_share_one, &ms, B_FALSE); if (ms.ms_mntstatus != 0) - ret = ms.ms_mntstatus; + ret = EZFS_SHAREFAILED; else zfs_commit_shares(NULL);