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openSUSE:Leap:42.3:Staging:C
mdadm
0100-Add-sector-size-as-spare-selection-criteri...
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File 0100-Add-sector-size-as-spare-selection-criterion.patch of Package mdadm
From 4b57ecf6cea134edff75a2f3a87ee48d52715c70 Mon Sep 17 00:00:00 2001 From: Alexey Obitotskiy <aleksey.obitotskiy@intel.com> Date: Tue, 9 May 2017 12:25:47 +0200 Subject: [PATCH] Add sector size as spare selection criterion Add sector size as new spare selection criterion. Assume that 0 means there is no requirement for the sector size in the array. Skip disks with unsuitable sector size when looking for a spare to move across containers. Signed-off-by: Alexey Obitotskiy <aleksey.obitotskiy@intel.com> Signed-off-by: Tomasz Majchrzak <tomasz.majchrzak@intel.com> Signed-off-by: Jes Sorensen <jsorensen@fb.com> --- Incremental.c | 4 ++-- Monitor.c | 8 ++++++++ mdadm.h | 3 +++ super-intel.c | 2 ++ util.c | 31 ++++++++++++++++++++++++++++++- 5 files changed, 45 insertions(+), 3 deletions(-) diff --git a/Incremental.c b/Incremental.c index fe9d644..30dc7a2 100644 --- a/Incremental.c +++ b/Incremental.c @@ -867,7 +867,7 @@ static int array_try_spare(char *devname, int *dfdp, struct dev_policy *pol, struct domainlist *dl = NULL; struct mdinfo *sra; unsigned long long devsize; - struct spare_criteria sc = {0}; + struct spare_criteria sc = {0, 0}; if (is_subarray(mp->metadata)) continue; @@ -1627,7 +1627,7 @@ static int Incremental_container(struct supertype *st, char *devname, struct mdinfo *sinfo; if (!sst->ss->load_container(sst, sfd, NULL)) { - struct spare_criteria sc = {0}; + struct spare_criteria sc = {0, 0}; if (st->ss->get_spare_criteria) st->ss->get_spare_criteria(st, &sc); diff --git a/Monitor.c b/Monitor.c index 9a2baad..c96f8e8 100644 --- a/Monitor.c +++ b/Monitor.c @@ -731,6 +731,7 @@ static int get_required_spare_criteria(struct state *st, if (!st->metadata || !st->metadata->ss->get_spare_criteria) { sc->min_size = 0; + sc->sector_size = 0; return 0; } @@ -787,6 +788,7 @@ static dev_t choose_spare(struct state *from, struct state *to, from->devstate[d] == 0) { struct dev_policy *pol; unsigned long long dev_size; + unsigned int dev_sector_size; if (to->metadata->ss->external && test_partition_from_id(from->devid[d])) @@ -797,6 +799,12 @@ static dev_t choose_spare(struct state *from, struct state *to, dev_size < sc->min_size) continue; + if (sc->sector_size && + dev_sector_size_from_id(from->devid[d], + &dev_sector_size) && + sc->sector_size != dev_sector_size) + continue; + pol = devid_policy(from->devid[d]); if (from->spare_group) pol_add(&pol, pol_domain, diff --git a/mdadm.h b/mdadm.h index 8da7fd3..ec0a39e 100644 --- a/mdadm.h +++ b/mdadm.h @@ -363,6 +363,7 @@ struct createinfo { struct spare_criteria { unsigned long long min_size; + unsigned int sector_size; }; enum mode { @@ -947,6 +948,7 @@ extern struct superswitch { /* * Return spare criteria for array: * - minimum disk size can be used in array; + * - sector size can be used in array. * Return values: 0 - for success and -EINVAL on error. */ int (*get_spare_criteria)(struct supertype *st, @@ -1189,6 +1191,7 @@ extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); extern int get_dev_sector_size(int fd, char *dname, unsigned int *sectsizep); extern int must_be_container(int fd); extern int dev_size_from_id(dev_t id, unsigned long long *size); +extern int dev_sector_size_from_id(dev_t id, unsigned int *size); void wait_for(char *dev, int fd); /* diff --git a/super-intel.c b/super-intel.c index be973f8..ba6f810 100644 --- a/super-intel.c +++ b/super-intel.c @@ -1396,6 +1396,7 @@ int get_spare_criteria_imsm(struct supertype *st, struct spare_criteria *c) unsigned long long size = 0; c->min_size = 0; + c->sector_size = 0; if (!super) return -EINVAL; @@ -1419,6 +1420,7 @@ int get_spare_criteria_imsm(struct supertype *st, struct spare_criteria *c) size += imsm_min_reserved_sectors(super); c->min_size = size * 512; + c->sector_size = super->sector_size; return 0; } diff --git a/util.c b/util.c index 8b3c67d..fc9cd3f 100644 --- a/util.c +++ b/util.c @@ -1265,6 +1265,23 @@ int dev_size_from_id(dev_t id, unsigned long long *size) return 0; } +int dev_sector_size_from_id(dev_t id, unsigned int *size) +{ + char buf[20]; + int fd; + + sprintf(buf, "%d:%d", major(id), minor(id)); + fd = dev_open(buf, O_RDONLY); + if (fd < 0) + return 0; + if (get_dev_sector_size(fd, NULL, size)) { + close(fd); + return 1; + } + close(fd); + return 0; +} + struct supertype *dup_super(struct supertype *orig) { struct supertype *st; @@ -2129,12 +2146,24 @@ struct mdinfo *container_choose_spares(struct supertype *st, if (d->disk.state == 0) { /* check if size is acceptable */ unsigned long long dev_size; + unsigned int dev_sector_size; + int size_valid = 0; + int sector_size_valid = 0; + dev_t dev = makedev(d->disk.major,d->disk.minor); if (!criteria->min_size || (dev_size_from_id(dev, &dev_size) && dev_size >= criteria->min_size)) - found = 1; + size_valid = 1; + + if (!criteria->sector_size || + (dev_sector_size_from_id(dev, &dev_sector_size) && + criteria->sector_size == dev_sector_size)) + sector_size_valid = 1; + + found = size_valid && sector_size_valid; + /* check if domain matches */ if (found && domlist) { struct dev_policy *pol = devid_policy(dev); -- 2.12.0
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