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| author | Juergen Gross <jgross@suse.com> | 2022-04-07 11:38:57 +0200 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2022-04-07 15:08:37 -0500 |
| commit | 262fc47ac17461c8cdc71c70aff6c3ea45acb0b9 (patch) | |
| tree | 4c3fe0de6f1876ea113056ea4fac29223291bb40 /drivers/xen/unpopulated-alloc.c | |
| parent | de2ae403b4c0e79a3410e63bc448542fbb9f9bfc (diff) | |
| download | linux-stable-262fc47ac17461c8cdc71c70aff6c3ea45acb0b9.tar.gz linux-stable-262fc47ac17461c8cdc71c70aff6c3ea45acb0b9.tar.bz2 linux-stable-262fc47ac17461c8cdc71c70aff6c3ea45acb0b9.zip | |
xen/balloon: don't use PV mode extra memory for zone device allocations
When running as a Xen PV guest use the extra memory (memory which isn't
allocated for the guest at boot time) only for ballooning purposes and
not for zone device allocations. This will remove some code without any
lack of functionality.
While at it move some code to get rid of another #ifdef.
Remove a comment which is stale since some time now.
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20220407093857.1485-1-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'drivers/xen/unpopulated-alloc.c')
| -rw-r--r-- | drivers/xen/unpopulated-alloc.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/xen/unpopulated-alloc.c b/drivers/xen/unpopulated-alloc.c index a8b41057c382..a39f2d36dd9c 100644 --- a/drivers/xen/unpopulated-alloc.c +++ b/drivers/xen/unpopulated-alloc.c @@ -230,39 +230,6 @@ void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages) } EXPORT_SYMBOL(xen_free_unpopulated_pages); -#ifdef CONFIG_XEN_PV -static int __init init(void) -{ - unsigned int i; - - if (!xen_domain()) - return -ENODEV; - - if (!xen_pv_domain()) - return 0; - - /* - * Initialize with pages from the extra memory regions (see - * arch/x86/xen/setup.c). - */ - for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) { - unsigned int j; - - for (j = 0; j < xen_extra_mem[i].n_pfns; j++) { - struct page *pg = - pfn_to_page(xen_extra_mem[i].start_pfn + j); - - pg->zone_device_data = page_list; - page_list = pg; - list_count++; - } - } - - return 0; -} -subsys_initcall(init); -#endif - static int __init unpopulated_init(void) { int ret; |