From 44463edeb303a464c4a44fcea184b267aeb53302 Mon Sep 17 00:00:00 2001 From: Mateusz Kusiak Date: Mon, 29 Apr 2024 15:07:20 +0200 Subject: [PATCH 59/66] imsm: support RAID 10 with more than 4 drives VROC UEFI driver does not support RAID 10 with more than 4 drives. Add user prompts if such layout is being created and for R0->R10 reshapes. Refactor ask() function: - simplify the code, - remove dialog reattempts, - do no pass '?' sign on function calls, - highlight default option on output. This patch completes adding support for R10D4+ to IMSM. Signed-off-by: Mateusz Kusiak Signed-off-by: Mariusz Tkaczyk --- Create.c | 9 ++++++++- super-intel.c | 14 ++++++++++++-- util.c | 39 +++++++++++++++++++++++++-------------- 3 files changed, 45 insertions(+), 17 deletions(-) diff --git a/Create.c b/Create.c index d94253b1..d033eb68 100644 --- a/Create.c +++ b/Create.c @@ -965,6 +965,13 @@ int Create(struct supertype *st, struct mddev_ident *ident, int subdevs, return 1; } + if (st->ss == &super_imsm && s->level == 10 && s->raiddisks > 4) { + /* Print no matter runstop was specifed */ + pr_err("Warning! VROC UEFI driver does not support RAID10 in requested layout.\n"); + pr_err("Array won't be suitable as boot device.\n"); + warn = 1; + } + if (!have_container && s->level > 0 && ((maxsize-s->size)*100 > maxsize)) { if (c->runstop != 1 || c->verbose >= 0) pr_err("largest drive (%s) exceeds size (%lluK) by more than 1%%\n", @@ -984,7 +991,7 @@ int Create(struct supertype *st, struct mddev_ident *ident, int subdevs, if (warn) { if (c->runstop!= 1) { - if (!ask("Continue creating array? ")) { + if (!ask("Continue creating array")) { pr_err("create aborted.\n"); return 1; } diff --git a/super-intel.c b/super-intel.c index d60915e8..2b8b6fda 100644 --- a/super-intel.c +++ b/super-intel.c @@ -523,6 +523,7 @@ enum imsm_reshape_type { CH_TAKEOVER, CH_MIGRATION, CH_ARRAY_SIZE, + CH_ABORT }; /* definition of messages passed to imsm_process_update */ @@ -11898,7 +11899,7 @@ success: ****************************************************************************/ enum imsm_reshape_type imsm_analyze_change(struct supertype *st, struct geo_params *geo, - int direction) + int direction, struct context *c) { struct mdinfo info; int change = -1; @@ -11925,6 +11926,14 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st, check_devs = 1; raid_disks += 1; /* parity disk added */ } else if (geo->level == IMSM_T_RAID10) { + if (geo->level == IMSM_T_RAID10 && geo->raid_disks > 2 && + !c->force) { + pr_err("Warning! VROC UEFI driver does not support RAID10 in requested layout.\n"); + pr_err("Array won't be suitable as boot device.\n"); + pr_err("Note: You can omit this check with \"--force\"\n"); + if (ask("Do you want to continue") < 1) + return CH_ABORT; + } change = CH_TAKEOVER; check_devs = 1; raid_disks *= 2; /* mirrors added */ @@ -12219,7 +12228,7 @@ static int imsm_reshape_super(struct supertype *st, struct shape *shape, struct goto exit_imsm_reshape_super; } super->current_vol = dev->index; - change = imsm_analyze_change(st, &geo, shape->direction); + change = imsm_analyze_change(st, &geo, shape->direction, c); switch (change) { case CH_TAKEOVER: ret_val = imsm_takeover(st, &geo); @@ -12262,6 +12271,7 @@ static int imsm_reshape_super(struct supertype *st, struct shape *shape, struct free(u); } break; + case CH_ABORT: default: ret_val = 1; } diff --git a/util.c b/util.c index 9e837045..4fbf11c4 100644 --- a/util.c +++ b/util.c @@ -725,23 +725,33 @@ int stat_is_blkdev(char *devname, dev_t *rdev) return 1; } +/** + * ask() - prompt user for "yes/no" dialog. + * @mesg: message to be printed, without '?' sign. + * Returns: 1 if 'Y/y', 0 otherwise. + * + * The default value is 'N/n', thus the caps on "N" on prompt. + */ int ask(char *mesg) { - char *add = ""; - int i; - for (i = 0; i < 5; i++) { - char buf[100]; - fprintf(stderr, "%s%s", mesg, add); - fflush(stderr); - if (fgets(buf, 100, stdin)==NULL) - return 0; - if (buf[0]=='y' || buf[0]=='Y') - return 1; - if (buf[0]=='n' || buf[0]=='N') - return 0; - add = "(y/n) "; + char buf[3] = {0}; + + fprintf(stderr, "%s [y/N]? ", mesg); + fflush(stderr); + if (fgets(buf, 3, stdin) == NULL) + return 0; + if (strlen(buf) == 1) { + pr_err("assuming no.\n"); + return 0; } - pr_err("assuming 'no'\n"); + if (buf[1] != '\n') + goto bad_option; + if (toupper(buf[0]) == 'Y') + return 1; + if (toupper(buf[0]) == 'N') + return 0; +bad_option: + pr_err("bad option.\n"); return 0; } @@ -1868,6 +1878,7 @@ int set_array_info(int mdfd, struct supertype *st, struct mdinfo *info) if (st->ss->external) return sysfs_set_array(info); + memset(&inf, 0, sizeof(inf)); inf.major_version = info->array.major_version; inf.minor_version = info->array.minor_version; -- 2.41.0