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authorLinus Torvalds <torvalds@linux-foundation.org>2008-05-15 06:11:36 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-15 06:11:36 +0400
commit8978a318837d7acefca82645017c0534aeba5a36 (patch)
treef69f5bc9a11d1a3a5c6391a9b48c9bcae4615a5a /lib
parentf7fd63c0b5e170efc20e7b9a0aad7f69dff62c64 (diff)
parent9a28dbf8af11d127bf1c644143e7882cb91515dd (diff)
downloadlinux-8978a318837d7acefca82645017c0534aeba5a36.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Use a TS_RESTORE_SIGMASK lmb: Make lmb debugging more useful. lmb: Fix inconsistent alignment of size argument. sparc: Fix mremap address range validation.
Diffstat (limited to 'lib')
-rw-r--r--lib/lmb.c45
1 files changed, 30 insertions, 15 deletions
diff --git a/lib/lmb.c b/lib/lmb.c
index 83287d3869a3..867f7b5a8231 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -19,31 +19,42 @@
struct lmb lmb;
+static int lmb_debug;
+
+static int __init early_lmb(char *p)
+{
+ if (p && strstr(p, "debug"))
+ lmb_debug = 1;
+ return 0;
+}
+early_param("lmb", early_lmb);
+
void lmb_dump_all(void)
{
-#ifdef DEBUG
unsigned long i;
- pr_debug("lmb_dump_all:\n");
- pr_debug(" memory.cnt = 0x%lx\n", lmb.memory.cnt);
- pr_debug(" memory.size = 0x%llx\n",
+ if (!lmb_debug)
+ return;
+
+ pr_info("lmb_dump_all:\n");
+ pr_info(" memory.cnt = 0x%lx\n", lmb.memory.cnt);
+ pr_info(" memory.size = 0x%llx\n",
(unsigned long long)lmb.memory.size);
for (i=0; i < lmb.memory.cnt ;i++) {
- pr_debug(" memory.region[0x%x].base = 0x%llx\n",
+ pr_info(" memory.region[0x%lx].base = 0x%llx\n",
i, (unsigned long long)lmb.memory.region[i].base);
- pr_debug(" .size = 0x%llx\n",
+ pr_info(" .size = 0x%llx\n",
(unsigned long long)lmb.memory.region[i].size);
}
- pr_debug(" reserved.cnt = 0x%lx\n", lmb.reserved.cnt);
- pr_debug(" reserved.size = 0x%lx\n", lmb.reserved.size);
+ pr_info(" reserved.cnt = 0x%lx\n", lmb.reserved.cnt);
+ pr_info(" reserved.size = 0x%lx\n", lmb.reserved.size);
for (i=0; i < lmb.reserved.cnt ;i++) {
- pr_debug(" reserved.region[0x%x].base = 0x%llx\n",
+ pr_info(" reserved.region[0x%lx].base = 0x%llx\n",
i, (unsigned long long)lmb.reserved.region[i].base);
- pr_debug(" .size = 0x%llx\n",
+ pr_info(" .size = 0x%llx\n",
(unsigned long long)lmb.reserved.region[i].size);
}
-#endif /* DEBUG */
}
static unsigned long lmb_addrs_overlap(u64 base1, u64 size1, u64 base2,
@@ -286,8 +297,7 @@ static u64 __init lmb_alloc_nid_unreserved(u64 start, u64 end,
j = lmb_overlaps_region(&lmb.reserved, base, size);
if (j < 0) {
/* this area isn't reserved, take it */
- if (lmb_add_region(&lmb.reserved, base,
- lmb_align_up(size, align)) < 0)
+ if (lmb_add_region(&lmb.reserved, base, size) < 0)
base = ~(u64)0;
return base;
}
@@ -333,6 +343,10 @@ u64 __init lmb_alloc_nid(u64 size, u64 align, int nid,
struct lmb_region *mem = &lmb.memory;
int i;
+ BUG_ON(0 == size);
+
+ size = lmb_align_up(size, align);
+
for (i = 0; i < mem->cnt; i++) {
u64 ret = lmb_alloc_nid_region(&mem->region[i],
nid_range,
@@ -370,6 +384,8 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
BUG_ON(0 == size);
+ size = lmb_align_up(size, align);
+
/* On some platforms, make sure we allocate lowmem */
/* Note that LMB_REAL_LIMIT may be LMB_ALLOC_ANYWHERE */
if (max_addr == LMB_ALLOC_ANYWHERE)
@@ -393,8 +409,7 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
j = lmb_overlaps_region(&lmb.reserved, base, size);
if (j < 0) {
/* this area isn't reserved, take it */
- if (lmb_add_region(&lmb.reserved, base,
- lmb_align_up(size, align)) < 0)
+ if (lmb_add_region(&lmb.reserved, base, size) < 0)
return 0;
return base;
}