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Re: [PATCH 15/39] don't save ebx in putuser_32.S

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From: Andi Kleen
Subject: Re: [PATCH 15/39] don't save ebx in putuser_32.S
Date: Saturday, June 28, 2008 - 5:10 am

Glauber Costa <gcosta@redhat.com> writes:


I would expect that definitely will cause code size regressions ...

-Andi
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Messages in current thread:
[PATCH 0/39] Merge files at x86/lib, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 01/39] Don't use size specifiers, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 02/39] provide delay loop for x86_64, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 03/39] use rdtscll in read_current_timer for i386., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 04/39] explicitly use edx in const delay function., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 05/39] integrate delay functions, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 06/39] use something common for both architectures, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 07/39] don't clobber r8 nor use rcx, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 08/39] don't use word-size specifiers, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 09/39] adapt x86_64 getuser functions, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 10/39] rename threadinfo to TI, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 11/39] Don't use word-size specifiers on getuser_64, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 12/39] introduce __ASM_REG macro, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 13/39] use _ASM_PTR instead of explicit word-size p ..., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 14/39] merge getuser asm functions, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 15/39] don't save ebx in putuser_32.S, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 16/39] user put_user_x instead of all variants., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 17/39] clobber rbx in putuser_64.S, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 18/39] pass argument to putuser_64 functions in ax ..., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 19/39] change testing logic in putuser_64.S, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 20/39] replace function headers by macros, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 21/39] don't use word-size specifiers in putuser files, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 22/39] use macros from asm.h, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 23/39] merge putuser asm functions, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 24/39] commonize __range_not_ok, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 25/39] merge common parts of uaccess., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 26/39] merge getuser, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 27/39] move __addr_ok to uaccess.h, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 28/39] use k modifier for 4-byte access., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 29/39] mark x86_64 as having a working WP., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 30/39] don't always use EFAULT on __put_user_size., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 31/39] merge __put_user_asm and its user., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 32/39] don't always use EFAULT on __get_user_size., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 33/39] merge __get_user_asm and its users., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 34/39] Be more explicit in __put_user_x, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 35/39] turn __put_user_check directly into put_user., Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 36/39] merge put_user, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 37/39] move __get_user and __put_user into uaccess.h, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 38/39] put movsl_mask into uaccess.h, Glauber Costa, (Fri Jun 27, 2:34 pm)
[PATCH 39/39] define architectural characteristics in uacc ..., Glauber Costa, (Fri Jun 27, 2:34 pm)
Re: [PATCH 08/39] don't use word-size specifiers, H. Peter Anvin, (Fri Jun 27, 4:17 pm)
Re: [PATCH 08/39] don't use word-size specifiers, H. Peter Anvin, (Fri Jun 27, 4:22 pm)
Re: [PATCH 08/39] don't use word-size specifiers, Glauber Costa, (Fri Jun 27, 6:41 pm)
Re: [PATCH 08/39] don't use word-size specifiers, H. Peter Anvin, (Fri Jun 27, 10:09 pm)
Re: [PATCH 12/39] introduce __ASM_REG macro, Andi Kleen, (Sat Jun 28, 5:09 am)
Re: [PATCH 15/39] don't save ebx in putuser_32.S, Andi Kleen, (Sat Jun 28, 5:10 am)
Re: [PATCH 17/39] clobber rbx in putuser_64.S, Andi Kleen, (Sat Jun 28, 5:12 am)
Re: [PATCH 0/39] Merge files at x86/lib, H. Peter Anvin, (Sun Jun 29, 10:10 pm)
Re: [PATCH 25/39] merge common parts of uaccess., Ingo Molnar, (Sun Jun 29, 11:30 pm)
Re: [PATCH 25/39] merge common parts of uaccess., Ingo Molnar, (Sun Jun 29, 11:31 pm)
Re: [PATCH 25/39] merge common parts of uaccess., H. Peter Anvin, (Mon Jun 30, 9:31 am)
Re: [PATCH 25/39] merge common parts of uaccess., Glauber Costa, (Mon Jun 30, 11:48 am)
Re: [PATCH 25/39] merge common parts of uaccess., Ingo Molnar, (Mon Jun 30, 11:53 am)
Re: [PATCH 25/39] merge common parts of uaccess., Glauber Costa, (Mon Jun 30, 12:00 pm)
Re: [PATCH 25/39] merge common parts of uaccess., Ingo Molnar, (Mon Jun 30, 12:29 pm)
Re: [PATCH 15/39] don't save ebx in putuser_32.S, Glauber Costa, (Mon Jun 30, 1:43 pm)
Re: [PATCH 17/39] clobber rbx in putuser_64.S, Glauber Costa, (Mon Jun 30, 2:00 pm)
Re: [PATCH 17/39] clobber rbx in putuser_64.S, Glauber Costa, (Mon Jun 30, 2:40 pm)
Re: [PATCH 17/39] clobber rbx in putuser_64.S, Andi Kleen, (Mon Jun 30, 4:45 pm)
Re: [PATCH 17/39] clobber rbx in putuser_64.S, Glauber Costa, (Mon Jun 30, 7:46 pm)
Re: [PATCH 17/39] clobber rbx in putuser_64.S, Glauber Costa, (Tue Jul 1, 8:11 am)