Re: [PATCH 6/7] mm: kill vma flag VM_EXECUTABLE
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Cyrill Gorcunov wrote:
On Sat, Mar 31, 2012 at 10:13:24PM +0200, Oleg Nesterov wrote:Add Cyrill. This conflicts with c-r-prctl-add-ability-to-set-new-mm_struct-exe_file.patch in -mm.Thanks for CC'ing, Oleg. I think if thise series go in it won't be a problem to update my patch accordingly.
In this patch I leave mm->exe_file lockless. After exec/fork we can change it only for current task and only if mm->mm_users == 1. something like this: task_lock(current); if (atomic_read(¤t->mm->mm_users) == 1) set_mm_exe_file(current->mm, new_file); else ret = -EBUSY; task_unlock(current); task_lock() protect this code against get_task_mm() -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>