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SubjectRe: [PATCH mm RESEND] c/r: prctl: update prctl_set_mm_exe_file() after mm->num_exe_file_vmas removal
On Sat, Apr 07, 2012 at 11:08:02PM +0400, Konstantin Khlebnikov wrote:
> [ fix for "c-r-prctl-add-ability-to-set-new-mm_struct-exe_file-v2" from mm tree ]
> After removing mm->num_exe_file_vmas kernel keeps mm->exe_file until final mmput(),
> it never becomes NULL while task is alive.
> We can check for other mapped files in mm instead of checking mm->num_exe_file_vmas,
> and mark mm with flag MMF_EXE_FILE_CHANGED in order to forbid second changing of mm->exe_file.
> Signed-off-by: Konstantin Khlebnikov <>

Hi Konstantin, really sorry for delay. This should do trick for us.

Reviewed-by: Cyrill Gorcunov <>

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