Eric Dumazet f8cbf6bde4 netlink: use kvmalloc() in netlink_alloc_large_skb() ... This is a followup of commit 234ec0b603 ("netlink: fix potential sleeping issue in mqueue_flush_file"), because vfree_atomic() overhead is unfortunate for medium sized allocations. 1) If the allocation is smaller than PAGE_SIZE, do not bother with vmalloc() at all. Some arches have 64KB PAGE_SIZE, while NLMSG_GOODSIZE is smaller than 8KB. 2) Use kvmalloc(), which might allocate one high order page instead of vmalloc if memory is not too fragmented. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Zhengchao Shao <shaozhengchao@huawei.com> Link: https://lore.kernel.org/r/20240224090630.605917-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2024-02-27 08:31:28 -08:00
..
af_netlink.c	netlink: use kvmalloc() in netlink_alloc_large_skb()	2024-02-27 08:31:28 -08:00
af_netlink.h	rtnetlink: change nlk->cb_mutex role	2024-02-26 11:46:12 +00:00
diag.c	netlink: fix netlink_diag_dump() return value	2024-02-26 11:46:12 +00:00
genetlink.c	genetlink: Add per family bind/unbind callbacks	2024-02-15 17:49:16 -08:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	netlink: add infrastructure to expose policies to userspace	2020-04-30 17:51:42 -07:00
policy.c	netlink: add variable-length / auto integers	2023-10-20 11:43:35 +01:00