mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC
This mostly reverts commit af3b8544 ("mm/page_alloc.c: allow error injection"). The commit made should_fail_alloc_page() a noinline function that's always called from the page allocation hotpath, even if it's empty because CONFIG_FAIL_PAGE_ALLOC is not enabled, and there is no option to disable it and prevent the associated function call overhead. As with the preceding patch "mm, slab: put should_failslab back behind CONFIG_SHOULD_FAILSLAB" and for the same reasons, put the should_fail_alloc_page() back behind the config option. When enabled, the ALLOW_ERROR_INJECTION and BTF_ID records are preserved so it's not a complete revert. Link: https://lkml.kernel.org/r/20240711-b4-fault-injection-reverts-v1-2-9e2651945d68@suse.cz Signed-off-by:Vlastimil Babka <vbabka@suse.cz> Cc: Akinobu Mita <akinobu.mita@gmail.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Christoph Lameter <cl@lin...
parent
a7526fe8
Please register or sign in to comment