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RFC prctl: set-mm -- Rework interface, v2

Cyrill Gorcunov linux-mm lkml 1 version In review

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  1. v1 RFC Latest4 patches 6 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/4mm: Introduce may_adjust_brk helperinclude/linux/mm.h+14 -04 replies
2/4mm: Use may_adjust_brk helperkernel/sys.c mm/mmap.c+7 -100 replies
3/4prctl: PR_SET_MM -- Factor out mmap_sem when update mm::exe_filekernel/sys.c+11 -100 replies
4/4prctl: PR_SET_MM -- Introduce PR_SET_MM_MAP operation, v3include/uapi/linux/prctl.h kernel/sys.c+235 -12 replies

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Cover letter [rfc 0/4] prctl: set-mm -- Rework interface, v2

Hi, here is a second version. I've tried to address all comments
(for which I'm really grateful). I believe the main question which remains opened is exe-fd setup. Hopefully the current limitation (root only) would be enough.

Also, Julien, there is no additional need for ordering test of @start_stack member since we use find_vma helper.

Please take a look, once you have a spare minutes, thanks!

Cyrill

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