Commit a60822bc authored by Long Li's avatar Long Li Committed by Wei Liu
Browse files

Drivers: hv: Use kzalloc for panic page allocation 



To prepare for removal of hv_alloc_* and hv_free* functions, use
kzalloc/kfree directly for panic reporting page.

Signed-off-by: default avatarLong Li <longli@microsoft.com>
Reviewed-by: default avatarMichael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/1746492997-4599-5-git-send-email-longli@linuxonhyperv.com


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
Message-ID: <1746492997-4599-5-git-send-email-longli@linuxonhyperv.com>
parent 0315fef2

drivers/hv/hv_common.c

+3 −3
Original line number Diff line number Diff line
@@ -272,7 +272,7 @@ static void hv_kmsg_dump_unregister(void) 
	atomic_notifier_chain_unregister(&panic_notifier_list,

					 &hyperv_panic_report_block);



	hv_free_hyperv_page(hv_panic_page);

	kfree(hv_panic_page);

	hv_panic_page = NULL;

}
@@ -280,7 +280,7 @@ static void hv_kmsg_dump_register(void) 
{

	int ret;



	hv_panic_page = hv_alloc_hyperv_zeroed_page();

	hv_panic_page = kzalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);

	if (!hv_panic_page) {

		pr_err("Hyper-V: panic message page memory allocation failed\n");

		return;
@@ -289,7 +289,7 @@ static void hv_kmsg_dump_register(void) 
	ret = kmsg_dump_register(&hv_kmsg_dumper);

	if (ret) {

		pr_err("Hyper-V: kmsg dump register error 0x%x\n", ret);

		hv_free_hyperv_page(hv_panic_page);

		kfree(hv_panic_page);

		hv_panic_page = NULL;

	}

}