499a4f3ec0
The wrong MMF_HAS_UPROBES doesn't really hurt, just it triggers the "slow" and unnecessary handle_swbp() path if the task hits the non-uprobe breakpoint. So this patch changes find_active_uprobe() to check every valid vma and clear MMF_HAS_UPROBES if no uprobes were found. This is adds the slow O(n) path, but it is only called in unlikely case when the task hits the normal breakpoint first time after uprobe_unregister(). Note the "not strictly accurate" comment in mmf_recalc_uprobes(). We can fix this, we only need to teach vma_has_uprobes() to return a bit more more info, but I am not sure this worth the trouble. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> |
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| .. | ||
| callchain.c | ||
| core.c | ||
| hw_breakpoint.c | ||
| internal.h | ||
| Makefile | ||
| ring_buffer.c | ||
| uprobes.c | ||