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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-08-23 21:48:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-08-23 21:48:41 -0700 |
| commit | 7ca63ee1b005623af7c4f3481a2976de3b9fed53 (patch) | |
| tree | 43095ed12f75a7930e91625ea974b61e9664d2bc /kernel | |
| parent | caf1aaf6d20684f532099c242a18ad3f46cf7a17 (diff) | |
| parent | f5042d037544215de530a375431c3fca60140823 (diff) | |
| download | linux-7ca63ee1b005623af7c4f3481a2976de3b9fed53.tar.bz2 | |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"This tree contains misc fixlets: a perf script python binding fix, a
uprobes fix and a syscall tracing fix."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Add missing files to build the python binding
uprobes: Fix mmap_region()'s mm->mm_rb corruption if uprobe_mmap() fails
tracing/syscalls: Fix perf syscall tracing when syscall_nr == -1
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/fork.c | 4 | ||||
| -rw-r--r-- | kernel/trace/trace_syscalls.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 3bd2280d79f6..2c8857e12855 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -455,8 +455,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) if (retval) goto out; - if (file && uprobe_mmap(tmp)) - goto out; + if (file) + uprobe_mmap(tmp); } /* a new mm has just been created */ arch_dup_mmap(oldmm, mm); diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c index 60e4d7875672..6b245f64c8dd 100644 --- a/kernel/trace/trace_syscalls.c +++ b/kernel/trace/trace_syscalls.c @@ -506,6 +506,8 @@ static void perf_syscall_enter(void *ignore, struct pt_regs *regs, long id) int size; syscall_nr = syscall_get_nr(current, regs); + if (syscall_nr < 0) + return; if (!test_bit(syscall_nr, enabled_perf_enter_syscalls)) return; @@ -580,6 +582,8 @@ static void perf_syscall_exit(void *ignore, struct pt_regs *regs, long ret) int size; syscall_nr = syscall_get_nr(current, regs); + if (syscall_nr < 0) + return; if (!test_bit(syscall_nr, enabled_perf_exit_syscalls)) return; |