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-rw-r--r--mm/highmem.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/mm/highmem.c b/mm/highmem.c
index 55885f64af40..9b274fdf9d08 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -74,8 +74,7 @@ static void flush_all_zero_pkmaps(void)
74 pkmap_count[i] = 0; 74 pkmap_count[i] = 0;
75 75
76 /* sanity check */ 76 /* sanity check */
77 if (pte_none(pkmap_page_table[i])) 77 BUG_ON(pte_none(pkmap_page_table[i]));
78 BUG();
79 78
80 /* 79 /*
81 * Don't need an atomic fetch-and-clear op here; 80 * Don't need an atomic fetch-and-clear op here;
@@ -158,8 +157,7 @@ void fastcall *kmap_high(struct page *page)
158 if (!vaddr) 157 if (!vaddr)
159 vaddr = map_new_virtual(page); 158 vaddr = map_new_virtual(page);
160 pkmap_count[PKMAP_NR(vaddr)]++; 159 pkmap_count[PKMAP_NR(vaddr)]++;
161 if (pkmap_count[PKMAP_NR(vaddr)] < 2) 160 BUG_ON(pkmap_count[PKMAP_NR(vaddr)] < 2);
162 BUG();
163 spin_unlock(&kmap_lock); 161 spin_unlock(&kmap_lock);
164 return (void*) vaddr; 162 return (void*) vaddr;
165} 163}
@@ -174,8 +172,7 @@ void fastcall kunmap_high(struct page *page)
174 172
175 spin_lock(&kmap_lock); 173 spin_lock(&kmap_lock);
176 vaddr = (unsigned long)page_address(page); 174 vaddr = (unsigned long)page_address(page);
177 if (!vaddr) 175 BUG_ON(!vaddr);
178 BUG();
179 nr = PKMAP_NR(vaddr); 176 nr = PKMAP_NR(vaddr);
180 177
181 /* 178 /*
@@ -220,8 +217,7 @@ static __init int init_emergency_pool(void)
220 return 0; 217 return 0;
221 218
222 page_pool = mempool_create_page_pool(POOL_SIZE, 0); 219 page_pool = mempool_create_page_pool(POOL_SIZE, 0);
223 if (!page_pool) 220 BUG_ON(!page_pool);
224 BUG();
225 printk("highmem bounce pool size: %d pages\n", POOL_SIZE); 221 printk("highmem bounce pool size: %d pages\n", POOL_SIZE);
226 222
227 return 0; 223 return 0;
@@ -264,8 +260,7 @@ int init_emergency_isa_pool(void)
264 260
265 isa_page_pool = mempool_create(ISA_POOL_SIZE, mempool_alloc_pages_isa, 261 isa_page_pool = mempool_create(ISA_POOL_SIZE, mempool_alloc_pages_isa,
266 mempool_free_pages, (void *) 0); 262 mempool_free_pages, (void *) 0);
267 if (!isa_page_pool) 263 BUG_ON(!isa_page_pool);
268 BUG();
269 264
270 printk("isa bounce pool size: %d pages\n", ISA_POOL_SIZE); 265 printk("isa bounce pool size: %d pages\n", ISA_POOL_SIZE);
271 return 0; 266 return 0;