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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-16 22:30:10 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-16 22:30:10 +0300 |
| commit | e994cc240a3b75744c33ca9b8d74f71f0fcd8852 (patch) | |
| tree | 10809f00d4cbb97bff138301b21edfacf8b129af /fs/proc | |
| parent | ba1d41a55e4d07c7b27ee2f6e7cf5b5348849261 (diff) | |
| parent | 2c07343abd8932200a45ff7b10950e71081e9e77 (diff) | |
| download | linux-e994cc240a3b75744c33ca9b8d74f71f0fcd8852.tar.xz | |
Merge tag 'seccomp-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"The major change here is finally gaining seccomp constant-action
bitmaps, which internally reduces the seccomp overhead for many
real-world syscall filters to O(1), as discussed at Plumbers this
year.
- Improve seccomp performance via constant-action bitmaps (YiFei Zhu
& Kees Cook)
- Fix bogus __user annotations (Jann Horn)
- Add missed CONFIG for improved selftest coverage (Mickaël Salaün)"
* tag 'seccomp-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Update kernel config
seccomp: Remove bogus __user annotations
seccomp/cache: Report cache data through /proc/pid/seccomp_cache
xtensa: Enable seccomp architecture tracking
sh: Enable seccomp architecture tracking
s390: Enable seccomp architecture tracking
riscv: Enable seccomp architecture tracking
powerpc: Enable seccomp architecture tracking
parisc: Enable seccomp architecture tracking
csky: Enable seccomp architecture tracking
arm: Enable seccomp architecture tracking
arm64: Enable seccomp architecture tracking
selftests/seccomp: Compare bitmap vs filter overhead
x86: Enable seccomp architecture tracking
seccomp/cache: Add "emulator" to check if filter is constant allow
seccomp/cache: Lookup syscall allowlist bitmap for fast path
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/base.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index e71040b68991..b3422cda2a91 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -3263,6 +3263,9 @@ static const struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_PROC_PID_ARCH_STATUS ONE("arch_status", S_IRUGO, proc_pid_arch_status), #endif +#ifdef CONFIG_SECCOMP_CACHE_DEBUG + ONE("seccomp_cache", S_IRUSR, proc_pid_seccomp_cache), +#endif }; static int proc_tgid_base_readdir(struct file *file, struct dir_context *ctx) @@ -3592,6 +3595,9 @@ static const struct pid_entry tid_base_stuff[] = { #ifdef CONFIG_PROC_PID_ARCH_STATUS ONE("arch_status", S_IRUGO, proc_pid_arch_status), #endif +#ifdef CONFIG_SECCOMP_CACHE_DEBUG + ONE("seccomp_cache", S_IRUSR, proc_pid_seccomp_cache), +#endif }; static int proc_tid_base_readdir(struct file *file, struct dir_context *ctx) |