git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Hao Luo <haoluo@google.com>
	Fri, 17 Dec 2021 00:31:48 +0000 (16:31 -0800)
committer	Alexei Starovoitov <ast@kernel.org>
	Sat, 18 Dec 2021 21:27:41 +0000 (13:27 -0800)
commit	2fce41254815c607622fb4fd7bb09d365a386164
tree	56ef53fccf3a9be91909c3dc2cd36068043acc68	tree \| snapshot
parent	4884a023683c19af08e462a64748dc07c213aa46	commit \| diff

bpf: Introduce MEM_RDONLY flag

This patch introduce a flag MEM_RDONLY to tag a reg value
pointing to read-only memory. It makes the following changes:

1. PTR_TO_RDWR_BUF -> PTR_TO_BUF
2. PTR_TO_RDONLY_BUF -> PTR_TO_BUF | MEM_RDONLY

Signed-off-by: Hao Luo <haoluo@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211217003152.48334-6-haoluo@google.com

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