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perf: Add non-exec mmap() tracking

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Add the capacility to track data mmap()s. This can be used together
with PERF_SAMPLE_ADDR for data profiling.

Signed-off-by: Anton Blanchard <[email protected]>
[Updated code for stable perf ABI]
Signed-off-by: Eric B Munson <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Steven Rostedt <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Eric B Munson 2010-05-18 15:30:49 +01:00 • committed by Ingo Molnar
commit 3af9e85928
5 changed files with 35 additions and 22 deletions
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1
fs/exec.c
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@ -653,6 +653,7 @@ int setup_arg_pages(struct linux_binprm *bprm,
else
stack_base = vma->vm_start - stack_expand;
#endif
current->mm->start_stack = bprm->p;
ret = expand_stack(vma, stack_base);
if (ret)
ret = -EFAULT;