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| author | Christoph Hellwig <hch@lst.de> | 2020-06-08 21:35:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:39:16 -0700 |
| commit | fa94111d94354de76c47fea6e1187d1ee91e23a7 (patch) | |
| tree | 3b93b7e0348374ee7ed537642e205a567a64ce5f /mm/maccess.c | |
| parent | b58294ead14cde8081853487929adca821ed630d (diff) | |
| download | lwn-fa94111d94354de76c47fea6e1187d1ee91e23a7.tar.gz lwn-fa94111d94354de76c47fea6e1187d1ee91e23a7.zip | |
x86: use non-set_fs based maccess routines
Provide arch_kernel_read and arch_kernel_write routines to implement the
maccess routines without messing with set_fs and without stac/clac that
opens up access to user space.
[akpm@linux-foundation.org: coding style fixes]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200521152301.2587579-20-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/maccess.c')
0 files changed, 0 insertions, 0 deletions