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authorDmitry Torokhov <dtor_core@ameritech.net>2006-04-02 00:08:05 -0500
committerDmitry Torokhov <dtor_core@ameritech.net>2006-04-02 00:08:05 -0500
commit95d465fd750897ab32462a6702fbfe1b122cbbc0 (patch)
tree65c38b2f11c51bb6932e44dd6c92f15b0091abfe /arch/ia64/sn/kernel/xpc_partition.c
parent642fde17dceceb56c7ba2762733ac688666ae657 (diff)
parent683aa4012f53b2ada0f430487e05d37b0d94e90a (diff)
Manual merge with Linus.
Conflicts: arch/powerpc/kernel/setup-common.c drivers/input/keyboard/hil_kbd.c drivers/input/mouse/hil_ptr.c
Diffstat (limited to 'arch/ia64/sn/kernel/xpc_partition.c')
-rw-r--r--arch/ia64/sn/kernel/xpc_partition.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/arch/ia64/sn/kernel/xpc_partition.c b/arch/ia64/sn/kernel/xpc_partition.c
index 88a730e6cfd..94211429fd0 100644
--- a/arch/ia64/sn/kernel/xpc_partition.c
+++ b/arch/ia64/sn/kernel/xpc_partition.c
@@ -81,6 +81,31 @@ char ____cacheline_aligned xpc_remote_copy_buffer[XPC_RP_HEADER_SIZE +
/*
+ * Guarantee that the kmalloc'd memory is cacheline aligned.
+ */
+static void *
+xpc_kmalloc_cacheline_aligned(size_t size, gfp_t flags, void **base)
+{
+ /* see if kmalloc will give us cachline aligned memory by default */
+ *base = kmalloc(size, flags);
+ if (*base == NULL) {
+ return NULL;
+ }
+ if ((u64) *base == L1_CACHE_ALIGN((u64) *base)) {
+ return *base;
+ }
+ kfree(*base);
+
+ /* nope, we'll have to do it ourselves */
+ *base = kmalloc(size + L1_CACHE_BYTES, flags);
+ if (*base == NULL) {
+ return NULL;
+ }
+ return (void *) L1_CACHE_ALIGN((u64) *base);
+}
+
+
+/*
* Given a nasid, get the physical address of the partition's reserved page
* for that nasid. This function returns 0 on any error.
*/
@@ -1038,13 +1063,12 @@ xpc_discovery(void)
remote_vars = (struct xpc_vars *) remote_rp;
- discovered_nasids = kmalloc(sizeof(u64) * xp_nasid_mask_words,
+ discovered_nasids = kzalloc(sizeof(u64) * xp_nasid_mask_words,
GFP_KERNEL);
if (discovered_nasids == NULL) {
kfree(remote_rp_base);
return;
}
- memset(discovered_nasids, 0, sizeof(u64) * xp_nasid_mask_words);
rp = (struct xpc_rsvd_page *) xpc_rsvd_page;