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mdadm.14070
0214-imsm-pass-already-existing-map-to-imsm_num...
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File 0214-imsm-pass-already-existing-map-to-imsm_num_data_memb.patch of Package mdadm.14070
From 9529d3436771d9f38884861683dee3b40ab9d180 Mon Sep 17 00:00:00 2001 From: Mariusz Dabrowski <mariusz.dabrowski@intel.com> Date: Thu, 5 Apr 2018 13:38:37 +0200 Subject: [PATCH] imsm: pass already existing map to imsm_num_data_members Git-commit: 9529d3436771d9f38884861683dee3b40ab9d180 Patch-mainline: mdadm-4.0+ References: bsc#1101110 In almost every place where imsm_num_data_members is called there is already existing map so it can be used it to avoid mistake when specifying map for imsm_num_data_members. Signed-off-by: Mariusz Dabrowski <mariusz.dabrowski@intel.com> Signed-off-by: Jes Sorensen <jsorensen@fb.com> Signed-off-by: Coly Li <colyli@suse.de> --- super-intel.c | 41 +++++++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/super-intel.c b/super-intel.c index fe2a705..3fc3cf4 100644 --- a/super-intel.c +++ b/super-intel.c @@ -2767,13 +2767,11 @@ static __u32 num_stripes_per_unit_rebuild(struct imsm_dev *dev) return num_stripes_per_unit_resync(dev); } -static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map) +static __u8 imsm_num_data_members(struct imsm_map *map) { /* named 'imsm_' because raid0, raid1 and raid10 * counter-intuitively have the same number of data disks */ - struct imsm_map *map = get_imsm_map(dev, second_map); - switch (get_imsm_raid_level(map)) { case 0: return map->num_members; @@ -2862,7 +2860,7 @@ static __u64 blocks_per_migr_unit(struct intel_super *super, */ stripes_per_unit = num_stripes_per_unit_resync(dev); migr_chunk = migr_strip_blocks_resync(dev); - disks = imsm_num_data_members(dev, MAP_0); + disks = imsm_num_data_members(map); blocks_per_unit = stripes_per_unit * migr_chunk * disks; stripe = __le16_to_cpu(map->blocks_per_strip) * disks; segment = blocks_per_unit / stripe; @@ -3381,7 +3379,7 @@ static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info, (unsigned long long)blocks_per_unit, info->reshape_progress); - used_disks = imsm_num_data_members(dev, MAP_1); + used_disks = imsm_num_data_members(prev_map); if (used_disks > 0) { array_blocks = blocks_per_member(map) * used_disks; @@ -8140,9 +8138,9 @@ static void handle_missing(struct intel_super *super, struct imsm_dev *dev) static unsigned long long imsm_set_array_size(struct imsm_dev *dev, long long new_size) { - int used_disks = imsm_num_data_members(dev, MAP_0); unsigned long long array_blocks; - struct imsm_map *map; + struct imsm_map *map = get_imsm_map(dev, MAP_0); + int used_disks = imsm_num_data_members(map); if (used_disks == 0) { /* when problems occures @@ -8155,17 +8153,15 @@ static unsigned long long imsm_set_array_size(struct imsm_dev *dev, /* set array size in metadata */ - if (new_size <= 0) { + if (new_size <= 0) /* OLCE size change is caused by added disks */ - map = get_imsm_map(dev, MAP_0); array_blocks = blocks_per_member(map) * used_disks; - } else { + else /* Online Volume Size Change * Using available free space */ array_blocks = new_size; - } array_blocks = round_size_to_mb(array_blocks, used_disks); set_imsm_dev_size(dev, array_blocks); @@ -8274,7 +8270,7 @@ static int imsm_set_array_state(struct active_array *a, int consistent) int used_disks; struct mdinfo *mdi; - used_disks = imsm_num_data_members(dev, MAP_0); + used_disks = imsm_num_data_members(map); if (used_disks > 0) { array_blocks = blocks_per_member(map) * @@ -9132,8 +9128,10 @@ static int apply_reshape_migration_update(struct imsm_update_reshape_migration * */ if (u->new_chunksize > 0) { unsigned long long num_data_stripes; + struct imsm_map *dest_map = + get_imsm_map(dev, MAP_0); int used_disks = - imsm_num_data_members(dev, MAP_0); + imsm_num_data_members(dest_map); if (used_disks == 0) return ret_val; @@ -9210,7 +9208,7 @@ static int apply_size_change_update(struct imsm_update_size_change *u, if (id->index == (unsigned)u->subdev) { struct imsm_dev *dev = get_imsm_dev(super, u->subdev); struct imsm_map *map = get_imsm_map(dev, MAP_0); - int used_disks = imsm_num_data_members(dev, MAP_0); + int used_disks = imsm_num_data_members(map); unsigned long long blocks_per_member; unsigned long long num_data_stripes; @@ -10589,7 +10587,7 @@ void init_migr_record_imsm(struct supertype *st, struct imsm_dev *dev, max(map_dest->blocks_per_strip, map_src->blocks_per_strip); migr_rec->dest_depth_per_unit *= max(map_dest->blocks_per_strip, map_src->blocks_per_strip); - new_data_disks = imsm_num_data_members(dev, MAP_0); + new_data_disks = imsm_num_data_members(map_dest); migr_rec->blocks_per_unit = __cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks); migr_rec->dest_depth_per_unit = @@ -10657,7 +10655,7 @@ int save_backup_imsm(struct supertype *st, int dest_layout = 0; int dest_chunk; unsigned long long start; - int data_disks = imsm_num_data_members(dev, MAP_0); + int data_disks = imsm_num_data_members(map_dest); targets = xmalloc(new_disks * sizeof(int)); @@ -11279,6 +11277,7 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st, int imsm_layout = -1; int data_disks; struct imsm_dev *dev; + struct imsm_map *map; struct intel_super *super; unsigned long long current_size; unsigned long long free_size; @@ -11369,7 +11368,8 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st, super = st->sb; dev = get_imsm_dev(super, super->current_vol); - data_disks = imsm_num_data_members(dev , MAP_0); + map = get_imsm_map(dev, MAP_0); + data_disks = imsm_num_data_members(map); /* compute current size per disk member */ current_size = info.custom_array_size / data_disks; @@ -11838,7 +11838,7 @@ static int imsm_manage_reshape( struct intel_dev *dv; unsigned int sector_size = super->sector_size; struct imsm_dev *dev = NULL; - struct imsm_map *map_src; + struct imsm_map *map_src, *map_dest; int migr_vol_qan = 0; int ndata, odata; /* [bytes] */ int chunk; /* [bytes] */ @@ -11876,12 +11876,13 @@ static int imsm_manage_reshape( goto abort; } + map_dest = get_imsm_map(dev, MAP_0); map_src = get_imsm_map(dev, MAP_1); if (map_src == NULL) goto abort; - ndata = imsm_num_data_members(dev, MAP_0); - odata = imsm_num_data_members(dev, MAP_1); + ndata = imsm_num_data_members(map_dest); + odata = imsm_num_data_members(map_src); chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512; old_data_stripe_length = odata * chunk; -- 2.18.0
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