memblock: Rename memblock_region to memblock_type and memblock_property to memblock_region

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 83 insertions, 85 deletions

diff --git a/mm/memblock.c b/mm/memblock.c
index 43840b305ecb..6f407ccf604e 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -29,7 +29,7 @@ static int __init early_memblock(char *p)
 }
 early_param("memblock", early_memblock);
 
-static void memblock_dump(struct memblock_region *region, char *name)
+static void memblock_dump(struct memblock_type *region, char *name)
 {
         unsigned long long base, size;
         int i;
@@ -37,8 +37,8 @@ static void memblock_dump(struct memblock_region *region, char *name)
         pr_info(" %s.cnt  = 0x%lx\n", name, region->cnt);
 
         for (i = 0; i < region->cnt; i++) {
-                base = region->region[i].base;
-                size = region->region[i].size;
+                base = region->regions[i].base;
+                size = region->regions[i].size;
 
                 pr_info(" %s[0x%x]\t0x%016llx - 0x%016llx, 0x%llx bytes\n",
                     name, i, base, base + size - 1, size);
@@ -74,34 +74,34 @@ static long memblock_addrs_adjacent(u64 base1, u64 size1, u64 base2, u64 size2)
         return 0;
 }
 
-static long memblock_regions_adjacent(struct memblock_region *rgn,
+static long memblock_regions_adjacent(struct memblock_type *type,
                 unsigned long r1, unsigned long r2)
 {
-        u64 base1 = rgn->region[r1].base;
-        u64 size1 = rgn->region[r1].size;
-        u64 base2 = rgn->region[r2].base;
-        u64 size2 = rgn->region[r2].size;
+        u64 base1 = type->regions[r1].base;
+        u64 size1 = type->regions[r1].size;
+        u64 base2 = type->regions[r2].base;
+        u64 size2 = type->regions[r2].size;
 
         return memblock_addrs_adjacent(base1, size1, base2, size2);
 }
 
-static void memblock_remove_region(struct memblock_region *rgn, unsigned long r)
+static void memblock_remove_region(struct memblock_type *type, unsigned long r)
 {
         unsigned long i;
 
-        for (i = r; i < rgn->cnt - 1; i++) {
-                rgn->region[i].base = rgn->region[i + 1].base;
-                rgn->region[i].size = rgn->region[i + 1].size;
+        for (i = r; i < type->cnt - 1; i++) {
+                type->regions[i].base = type->regions[i + 1].base;
+                type->regions[i].size = type->regions[i + 1].size;
         }
-        rgn->cnt--;
+        type->cnt--;
 }
 
 /* Assumption: base addr of region 1 < base addr of region 2 */
-static void memblock_coalesce_regions(struct memblock_region *rgn,
+static void memblock_coalesce_regions(struct memblock_type *type,
                 unsigned long r1, unsigned long r2)
 {
-        rgn->region[r1].size += rgn->region[r2].size;
-        memblock_remove_region(rgn, r2);
+        type->regions[r1].size += type->regions[r2].size;
+        memblock_remove_region(type, r2);
 }
 
 void __init memblock_init(void)
@@ -109,13 +109,13 @@ void __init memblock_init(void)
         /* Create a dummy zero size MEMBLOCK which will get coalesced away later.
          * This simplifies the memblock_add() code below...
          */
-        memblock.memory.region[0].base = 0;
-        memblock.memory.region[0].size = 0;
+        memblock.memory.regions[0].base = 0;
+        memblock.memory.regions[0].size = 0;
         memblock.memory.cnt = 1;
 
         /* Ditto. */
-        memblock.reserved.region[0].base = 0;
-        memblock.reserved.region[0].size = 0;
+        memblock.reserved.regions[0].base = 0;
+        memblock.reserved.regions[0].size = 0;
         memblock.reserved.cnt = 1;
 }
 
@@ -126,24 +126,24 @@ void __init memblock_analyze(void)
         memblock.memory.size = 0;
 
         for (i = 0; i < memblock.memory.cnt; i++)
-                memblock.memory.size += memblock.memory.region[i].size;
+                memblock.memory.size += memblock.memory.regions[i].size;
 }
 
-static long memblock_add_region(struct memblock_region *rgn, u64 base, u64 size)
+static long memblock_add_region(struct memblock_type *type, u64 base, u64 size)
 {
         unsigned long coalesced = 0;
         long adjacent, i;
 
-        if ((rgn->cnt == 1) && (rgn->region[0].size == 0)) {
-                rgn->region[0].base = base;
-                rgn->region[0].size = size;
+        if ((type->cnt == 1) && (type->regions[0].size == 0)) {
+                type->regions[0].base = base;
+                type->regions[0].size = size;
                 return 0;
         }
 
         /* First try and coalesce this MEMBLOCK with another. */
-        for (i = 0; i < rgn->cnt; i++) {
-                u64 rgnbase = rgn->region[i].base;
-                u64 rgnsize = rgn->region[i].size;
+        for (i = 0; i < type->cnt; i++) {
+                u64 rgnbase = type->regions[i].base;
+                u64 rgnsize = type->regions[i].size;
 
                 if ((rgnbase == base) && (rgnsize == size))
                         /* Already have this region, so we're done */
@@ -151,61 +151,59 @@ static long memblock_add_region(struct memblock_region *rgn, u64 base, u64 size)
 
                 adjacent = memblock_addrs_adjacent(base, size, rgnbase, rgnsize);
                 if (adjacent > 0) {
-                        rgn->region[i].base -= size;
-                        rgn->region[i].size += size;
+                        type->regions[i].base -= size;
+                        type->regions[i].size += size;
                         coalesced++;
                         break;
                 } else if (adjacent < 0) {
-                        rgn->region[i].size += size;
+                        type->regions[i].size += size;
                         coalesced++;
                         break;
                 }
         }
 
-        if ((i < rgn->cnt - 1) && memblock_regions_adjacent(rgn, i, i+1)) {
-                memblock_coalesce_regions(rgn, i, i+1);
+        if ((i < type->cnt - 1) && memblock_regions_adjacent(type, i, i+1)) {
+                memblock_coalesce_regions(type, i, i+1);
                 coalesced++;
         }
 
         if (coalesced)
                 return coalesced;
-        if (rgn->cnt >= MAX_MEMBLOCK_REGIONS)
+        if (type->cnt >= MAX_MEMBLOCK_REGIONS)
                 return -1;
 
         /* Couldn't coalesce the MEMBLOCK, so add it to the sorted table. */
-        for (i = rgn->cnt - 1; i >= 0; i--) {
-                if (base < rgn->region[i].base) {
-                        rgn->region[i+1].base = rgn->region[i].base;
-                        rgn->region[i+1].size = rgn->region[i].size;
+        for (i = type->cnt - 1; i >= 0; i--) {
+                if (base < type->regions[i].base) {
+                        type->regions[i+1].base = type->regions[i].base;
+                        type->regions[i+1].size = type->regions[i].size;
                 } else {
-                        rgn->region[i+1].base = base;
-                        rgn->region[i+1].size = size;
+                        type->regions[i+1].base = base;
+                        type->regions[i+1].size = size;
                         break;
                 }
         }
 
-        if (base < rgn->region[0].base) {
-                rgn->region[0].base = base;
-                rgn->region[0].size = size;
+        if (base < type->regions[0].base) {
+                type->regions[0].base = base;
+                type->regions[0].size = size;
         }
-        rgn->cnt++;
+        type->cnt++;
 
         return 0;
 }
 
 long memblock_add(u64 base, u64 size)
 {
-        struct memblock_region *_rgn = &memblock.memory;
-
         /* On pSeries LPAR systems, the first MEMBLOCK is our RMO region. */
         if (base == 0)
                 memblock.rmo_size = size;
 
-        return memblock_add_region(_rgn, base, size);
+        return memblock_add_region(&memblock.memory, base, size);
 
 }
 
-static long __memblock_remove(struct memblock_region *rgn, u64 base, u64 size)
+static long __memblock_remove(struct memblock_type *type, u64 base, u64 size)
 {
         u64 rgnbegin, rgnend;
         u64 end = base + size;
@@ -214,34 +212,34 @@ static long __memblock_remove(struct memblock_region *rgn, u64 base, u64 size)
         rgnbegin = rgnend = 0; /* supress gcc warnings */
 
         /* Find the region where (base, size) belongs to */
-        for (i=0; i < rgn->cnt; i++) {
-                rgnbegin = rgn->region[i].base;
-                rgnend = rgnbegin + rgn->region[i].size;
+        for (i=0; i < type->cnt; i++) {
+                rgnbegin = type->regions[i].base;
+                rgnend = rgnbegin + type->regions[i].size;
 
                 if ((rgnbegin <= base) && (end <= rgnend))
                         break;
         }
 
         /* Didn't find the region */
-        if (i == rgn->cnt)
+        if (i == type->cnt)
                 return -1;
 
         /* Check to see if we are removing entire region */
         if ((rgnbegin == base) && (rgnend == end)) {
-                memblock_remove_region(rgn, i);
+                memblock_remove_region(type, i);
                 return 0;
         }
 
         /* Check to see if region is matching at the front */
         if (rgnbegin == base) {
-                rgn->region[i].base = end;
-                rgn->region[i].size -= size;
+                type->regions[i].base = end;
+                type->regions[i].size -= size;
                 return 0;
         }
 
         /* Check to see if the region is matching at the end */
         if (rgnend == end) {
-                rgn->region[i].size -= size;
+                type->regions[i].size -= size;
                 return 0;
         }
 
@@ -249,8 +247,8 @@ static long __memblock_remove(struct memblock_region *rgn, u64 base, u64 size)
          * We need to split the entry -  adjust the current one to the
          * beginging of the hole and add the region after hole.
          */
-        rgn->region[i].size = base - rgn->region[i].base;
-        return memblock_add_region(rgn, end, rgnend - end);
+        type->regions[i].size = base - type->regions[i].base;
+        return memblock_add_region(type, end, rgnend - end);
 }
 
 long memblock_remove(u64 base, u64 size)
@@ -265,25 +263,25 @@ long __init memblock_free(u64 base, u64 size)
 
 long __init memblock_reserve(u64 base, u64 size)
 {
-        struct memblock_region *_rgn = &memblock.reserved;
+        struct memblock_type *_rgn = &memblock.reserved;
 
         BUG_ON(0 == size);
 
         return memblock_add_region(_rgn, base, size);
 }
 
-long memblock_overlaps_region(struct memblock_region *rgn, u64 base, u64 size)
+long memblock_overlaps_region(struct memblock_type *type, u64 base, u64 size)
 {
         unsigned long i;
 
-        for (i = 0; i < rgn->cnt; i++) {
-                u64 rgnbase = rgn->region[i].base;
-                u64 rgnsize = rgn->region[i].size;
+        for (i = 0; i < type->cnt; i++) {
+                u64 rgnbase = type->regions[i].base;
+                u64 rgnsize = type->regions[i].size;
                 if (memblock_addrs_overlap(base, size, rgnbase, rgnsize))
                         break;
         }
 
-        return (i < rgn->cnt) ? i : -1;
+        return (i < type->cnt) ? i : -1;
 }
 
 static u64 memblock_align_down(u64 addr, u64 size)
@@ -311,7 +309,7 @@ static u64 __init memblock_alloc_nid_unreserved(u64 start, u64 end,
                                 base = ~(u64)0;
                         return base;
                 }
-                res_base = memblock.reserved.region[j].base;
+                res_base = memblock.reserved.regions[j].base;
                 if (res_base < size)
                         break;
                 base = memblock_align_down(res_base - size, align);
@@ -320,7 +318,7 @@ static u64 __init memblock_alloc_nid_unreserved(u64 start, u64 end,
         return ~(u64)0;
 }
 
-static u64 __init memblock_alloc_nid_region(struct memblock_property *mp,
+static u64 __init memblock_alloc_nid_region(struct memblock_region *mp,
                                        u64 (*nid_range)(u64, u64, int *),
                                        u64 size, u64 align, int nid)
 {
@@ -350,7 +348,7 @@ static u64 __init memblock_alloc_nid_region(struct memblock_property *mp,
 u64 __init memblock_alloc_nid(u64 size, u64 align, int nid,
                          u64 (*nid_range)(u64 start, u64 end, int *nid))
 {
-        struct memblock_region *mem = &memblock.memory;
+        struct memblock_type *mem = &memblock.memory;
         int i;
 
         BUG_ON(0 == size);
@@ -358,7 +356,7 @@ u64 __init memblock_alloc_nid(u64 size, u64 align, int nid,
         size = memblock_align_up(size, align);
 
         for (i = 0; i < mem->cnt; i++) {
-                u64 ret = memblock_alloc_nid_region(&mem->region[i],
+                u64 ret = memblock_alloc_nid_region(&mem->regions[i],
                                                nid_range,
                                                size, align, nid);
                 if (ret != ~(u64)0)
@@ -402,8 +400,8 @@ u64 __init __memblock_alloc_base(u64 size, u64 align, u64 max_addr)
                 max_addr = MEMBLOCK_REAL_LIMIT;
 
         for (i = memblock.memory.cnt - 1; i >= 0; i--) {
-                u64 memblockbase = memblock.memory.region[i].base;
-                u64 memblocksize = memblock.memory.region[i].size;
+                u64 memblockbase = memblock.memory.regions[i].base;
+                u64 memblocksize = memblock.memory.regions[i].size;
 
                 if (memblocksize < size)
                         continue;
@@ -423,7 +421,7 @@ u64 __init __memblock_alloc_base(u64 size, u64 align, u64 max_addr)
                                         return 0;
                                 return base;
                         }
-                        res_base = memblock.reserved.region[j].base;
+                        res_base = memblock.reserved.regions[j].base;
                         if (res_base < size)
                                 break;
                         base = memblock_align_down(res_base - size, align);
@@ -442,7 +440,7 @@ u64 memblock_end_of_DRAM(void)
 {
         int idx = memblock.memory.cnt - 1;
 
-        return (memblock.memory.region[idx].base + memblock.memory.region[idx].size);
+        return (memblock.memory.regions[idx].base + memblock.memory.regions[idx].size);
 }
 
 /* You must call memblock_analyze() after this. */
@@ -450,7 +448,7 @@ void __init memblock_enforce_memory_limit(u64 memory_limit)
 {
         unsigned long i;
         u64 limit;
-        struct memblock_property *p;
+        struct memblock_region *p;
 
         if (!memory_limit)
                 return;
@@ -458,24 +456,24 @@ void __init memblock_enforce_memory_limit(u64 memory_limit)
         /* Truncate the memblock regions to satisfy the memory limit. */
         limit = memory_limit;
         for (i = 0; i < memblock.memory.cnt; i++) {
-                if (limit > memblock.memory.region[i].size) {
-                        limit -= memblock.memory.region[i].size;
+                if (limit > memblock.memory.regions[i].size) {
+                        limit -= memblock.memory.regions[i].size;
                         continue;
                 }
 
-                memblock.memory.region[i].size = limit;
+                memblock.memory.regions[i].size = limit;
                 memblock.memory.cnt = i + 1;
                 break;
         }
 
-        if (memblock.memory.region[0].size < memblock.rmo_size)
-                memblock.rmo_size = memblock.memory.region[0].size;
+        if (memblock.memory.regions[0].size < memblock.rmo_size)
+                memblock.rmo_size = memblock.memory.regions[0].size;
 
         memory_limit = memblock_end_of_DRAM();
 
         /* And truncate any reserves above the limit also. */
         for (i = 0; i < memblock.reserved.cnt; i++) {
-                p = &memblock.reserved.region[i];
+                p = &memblock.reserved.regions[i];
 
                 if (p->base > memory_limit)
                         p->size = 0;
@@ -494,9 +492,9 @@ int __init memblock_is_reserved(u64 addr)
         int i;
 
         for (i = 0; i < memblock.reserved.cnt; i++) {
-                u64 upper = memblock.reserved.region[i].base +
-                        memblock.reserved.region[i].size - 1;
-                if ((addr >= memblock.reserved.region[i].base) && (addr <= upper))
+                u64 upper = memblock.reserved.regions[i].base +
+                        memblock.reserved.regions[i].size - 1;
+                if ((addr >= memblock.reserved.regions[i].base) && (addr <= upper))
                         return 1;
         }
         return 0;
@@ -511,7 +509,7 @@ int memblock_is_region_reserved(u64 base, u64 size)
  * Given a <base, len>, find which memory regions belong to this range.
  * Adjust the request and return a contiguous chunk.
  */
-int memblock_find(struct memblock_property *res)
+int memblock_find(struct memblock_region *res)
 {
         int i;
         u64 rstart, rend;
@@ -520,8 +518,8 @@ int memblock_find(struct memblock_property *res)
         rend = rstart + res->size - 1;
 
         for (i = 0; i < memblock.memory.cnt; i++) {
-                u64 start = memblock.memory.region[i].base;
-                u64 end = start + memblock.memory.region[i].size - 1;
+                u64 start = memblock.memory.regions[i].base;
+                u64 end = start + memblock.memory.regions[i].size - 1;
 
                 if (start > rend)
                         return -1;