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powerpc/perf/hv-24x7: Catalog version number is be64, not be32 

The catalog version number was changed from a be32 (with proceeding
32bits of padding) to a be64, update the code to treat it as a be64

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Cody P Schafer 2014-04-15 10:10:55 -07:00 committed by Benjamin Herrenschmidt
parent 1ee9fcc1a0
commit bbad3e50e8
1 changed files with 7 additions and 6 deletions
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13
arch/powerpc/perf/hv-24x7.c
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@ -171,7 +171,7 @@ static unsigned long h_get_24x7_catalog_page_(unsigned long phys_4096,
}
static unsigned long h_get_24x7_catalog_page(char page[],
u32 version, u32 index)
u64 version, u32 index)
{
return h_get_24x7_catalog_page_(virt_to_phys(page),
version, index);
@ -185,7 +185,7 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj,
ssize_t ret = 0;
size_t catalog_len = 0, catalog_page_len = 0, page_count = 0;
loff_t page_offset = 0;
uint32_t catalog_version_num = 0;
uint64_t catalog_version_num = 0;
void *page = kmem_cache_alloc(hv_page_cache, GFP_USER);
struct hv_24x7_catalog_page_0 *page_0 = page;
if (!page)
@ -197,7 +197,7 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj,
goto e_free;
}
catalog_version_num = be32_to_cpu(page_0->version);
catalog_version_num = be64_to_cpu(page_0->version);
catalog_page_len = be32_to_cpu(page_0->length);
catalog_len = catalog_page_len * 4096;
@ -220,8 +220,9 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj,
page, 4096, page_offset * 4096);
e_free:
if (hret)
pr_err("h_get_24x7_catalog_page(ver=%d, page=%lld) failed: rc=%ld\n",
catalog_version_num, page_offset, hret);
pr_err("h_get_24x7_catalog_page(ver=%lld, page=%lld) failed:"
" rc=%ld\n",
catalog_version_num, page_offset, hret);
kfree(page);
pr_devel("catalog_read: offset=%lld(%lld) count=%zu(%zu) catalog_len=%zu(%zu) => %zd\n",
@ -255,7 +256,7 @@ e_free: \
static DEVICE_ATTR_RO(_name)
PAGE_0_ATTR(catalog_version, "%lld\n",
(unsigned long long)be32_to_cpu(page_0->version));
(unsigned long long)be64_to_cpu(page_0->version));
PAGE_0_ATTR(catalog_len, "%lld\n",
(unsigned long long)be32_to_cpu(page_0->length) * 4096);
static BIN_ATTR_RO(catalog, 0/* real length varies */);