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Text Section Edit Lock

Mathieu Desnoyers lkml 1 version In review

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  1. v1 Latest3 patches 3 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/3Text Edit Lock - i386arch/i386/mm/init.c include/asm-i386/cacheflush.h+47 -93 replies
2/3Text Edit Lock - Alternative i386arch/i386/kernel/alternative.c+5 -00 replies
3/3Text Edit Lock - kprobes i386arch/i386/kernel/kprobes.c+4 -00 replies

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Read the v1 thread

Cover letter [patch 0/3] Text Section Edit Lock

Hi,

This code adds locking around text section modifications. It can be used by paravirt/alternatives, kprobes and eventually the immediate values to:

A - synchronize dynamic code patching
B - make sure the pages are writable

I only provided the i386 version, but it could be easily ported to other architectures.

It applies at the end of the 2.6.22-rc4-mm2 series in the following order:

text-edit-lock-i386.patch
text-edit-lock-alternative-i386.patch
text-edit-lock-kprobes-i386.patch

Comments are welcome, (testing is welcome too)

Mathieu

Signature · 3 lines
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

Read the cover letter in its thread