On Tue, Oct 27, 2020 at 07:06:48PM -0400, Arvind Sankar wrote: > Commit > ea3b5e60ce80 ("x86/mm/ident_map: Add 5-level paging support") > added ident_p4d_init() to support 5-level paging, but this function > doesn't check and return errors from ident_pud_init(). > > For example, the decompressor stub uses this code to create an identity > mapping. If it runs out of pages while trying to allocate a PMD > pagetable, the error will be currently ignored. > > Fix this to propagate errors. > > Signed-off-by: Arvind Sankar <nived...@alum.mit.edu> > Fixes: ea3b5e60ce80 ("x86/mm/ident_map: Add 5-level paging support") > --- > arch/x86/mm/ident_map.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-)
Reviewed-by: Joerg Roedel <jroe...@suse.de>