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From: Jiri Kosina <jikos@kernel.org>
To: Chris J Arges <chris.j.arges@canonical.com>
Cc: live-patching@vger.kernel.org, jpoimboe@redhat.com,
	sjenning@redhat.com, Vojtech Pavlik <vojtech@suse.com>,
	pmladek@suse.com, jeyu@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3 v7] livepatch: add old_sympos as disambiguator field to klp_func
Date: Mon, 16 Nov 2015 22:59:30 +0100 (CET)	[thread overview]
Message-ID: <alpine.LNX.2.00.1511162255120.20111@pobox.suse.cz> (raw)
In-Reply-To: <1447693391-10065-2-git-send-email-chris.j.arges@canonical.com>

On Mon, 16 Nov 2015, Chris J Arges wrote:

> In cases of duplicate symbols, old_sympos will be used to disambiguate
> instead of old_addr. By default old_sympos will be 0, and patching will
> only succeed if the symbol is unique. Specifying a positive value will
> ensure that occurrence of the symbol in kallsyms for the patched object
> will be used for patching if it is valid.
> 
> In addition, make old_addr an internal structure field not to be specified
> by the user. Finally, remove klp_find_verify_func_addr as it can be
> replaced by klp_find_object_symbol directly.
> 
> Support for symbol position disambiguation for relocations is added in the
> next patch in this series.

Chris,

I am sorry to repeat myself, but the changelog is quite verbose with 
respect to "what is being done", but it doesn't contain any information 
whatsoever with respect to "why is this an improvement over current 
state", IOW why we are changing the status quo at all.

This absolutely has to be present in the changelog.

Thanks,

-- 
Jiri Kosina
SUSE Labs

  reply	other threads:[~2015-11-16 21:59 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-02 17:58 [PATCH] livepatch: old_name.number scheme in livepatch sysfs directory Chris J Arges
2015-11-02 17:58 ` Chris J Arges
2015-11-02 19:15 ` Jessica Yu
2015-11-02 19:52 ` [PATCH] " Josh Poimboeuf
2015-11-02 19:52   ` Josh Poimboeuf
2015-11-02 20:16   ` Chris J Arges
2015-11-02 20:32     ` Josh Poimboeuf
2015-11-02 22:59       ` [PATCH v2] " Chris J Arges
2015-11-02 22:59         ` Chris J Arges
2015-11-03  9:50         ` Miroslav Benes
2015-11-03 15:03           ` Josh Poimboeuf
2015-11-03 10:52         ` Miroslav Benes
2015-11-03 10:52           ` Miroslav Benes
2015-11-03 12:44           ` Petr Mladek
2015-11-03 12:44             ` Petr Mladek
2015-11-03 15:03             ` Josh Poimboeuf
2015-11-03 15:03               ` Josh Poimboeuf
2015-11-03 19:57             ` Jiri Kosina
2015-11-03 19:57               ` Jiri Kosina
2015-11-03 20:06               ` Josh Poimboeuf
2015-11-03 20:06                 ` Josh Poimboeuf
     [not found]                 ` <1447259366-7055-1-git-send-email-chris.j.arges@canonical.com>
2015-11-11 16:28                   ` [PATCH 1/3 v4] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-11 17:43                     ` Josh Poimboeuf
2015-11-12 10:22                     ` Miroslav Benes
2015-11-11 16:29                   ` [PATCH 2/3 v4] livepatch: add old_sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-11 16:39                     ` Chris J Arges
2015-11-11 17:57                     ` Josh Poimboeuf
2015-11-12 14:31                       ` Petr Mladek
2015-11-12 19:19                         ` Josh Poimboeuf
2015-11-13 13:54                           ` Petr Mladek
2015-11-13 16:59                             ` Josh Poimboeuf
2015-11-16 12:11                               ` Petr Mladek
2015-11-12 10:23                     ` Miroslav Benes
2015-11-11 16:29                   ` [PATCH 3/3 v4] livepatch: old_name,number scheme in livepatch sysfs directory Chris J Arges
2015-11-11 18:01                     ` Josh Poimboeuf
2015-11-11 18:01                       ` Josh Poimboeuf
     [not found]                   ` <1447347595-30728-1-git-send-email-chris.j.arges@canonical.com>
2015-11-12 16:59                     ` [PATCH 1/4 v5] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-12 19:45                       ` Josh Poimboeuf
2015-11-13  9:56                       ` Jiri Kosina
2015-11-13 10:14                       ` Miroslav Benes
2015-11-13 16:27                       ` Petr Mladek
2015-11-12 16:59                     ` [PATCH 2/4 v5] livepatch: Simplify code for relocated external symbols Chris J Arges
2015-11-13 10:24                       ` Miroslav Benes
2015-11-13 13:55                         ` Petr Mladek
2015-11-12 16:59                     ` [PATCH 3/4 v5] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-12 19:50                       ` Josh Poimboeuf
2015-11-13 16:42                       ` Petr Mladek
2015-11-12 16:59                     ` [PATCH 4/4 v5] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
     [not found]                     ` <1447431804-18786-1-git-send-email-chris.j.arges@canonical.com>
2015-11-13 16:23                       ` [PATCH 1/3 v6] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-13 16:23                       ` [PATCH 2/3 v6] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-13 16:23                       ` [PATCH 3/3 v6] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
     [not found]                       ` <1447693391-10065-1-git-send-email-chris.j.arges@canonical.com>
2015-11-16 17:03                         ` [PATCH 1/3 v7] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-16 21:59                           ` Jiri Kosina [this message]
2015-11-17 14:29                             ` Chris J Arges
2015-11-19 10:02                               ` Jiri Kosina
2015-11-16 17:03                         ` [PATCH 2/3 v7] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-18  9:56                           ` Miroslav Benes
2015-11-18 14:01                             ` Josh Poimboeuf
2015-11-18 16:47                               ` Petr Mladek
2015-11-18 16:37                           ` Petr Mladek
2015-11-18 16:39                             ` Chris J Arges
2015-11-18 16:55                               ` Petr Mladek
2015-11-18 20:34                                 ` Jiri Kosina
2015-11-16 17:03                         ` [PATCH 3/3 v7] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
2015-11-20 17:25                         ` [PATCH 0/3 v8] livepatch: disambiguate symbols with the same name Chris J Arges
2015-11-20 17:25                           ` [PATCH 1/3 v8] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-11-23  9:47                             ` Miroslav Benes
2015-11-20 17:25                           ` [PATCH 2/3 v8] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-11-23  9:52                             ` Miroslav Benes
2015-11-30 20:46                               ` Chris J Arges
2015-12-01  1:17                                 ` Josh Poimboeuf
2015-11-20 17:25                           ` [PATCH 3/3 v8] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
2015-11-23  9:47                             ` Miroslav Benes
2015-12-02  2:40                           ` [PATCH 0/3 v9] livepatch: disambiguate symbols with the same name Chris J Arges
2015-12-02  2:40                             ` [PATCH 1/3 v9] livepatch: add old_sympos as disambiguator field to klp_func Chris J Arges
2015-12-02  2:40                             ` [PATCH 2/3 v9] livepatch: add sympos as disambiguator field to klp_reloc Chris J Arges
2015-12-14 12:45                               ` Miroslav Benes
2015-12-02  2:40                             ` [PATCH 3/3 v9] livepatch: function,sympos scheme in livepatch sysfs directory Chris J Arges
2015-12-02 15:28                             ` [PATCH 0/3 v9] livepatch: disambiguate symbols with the same name Petr Mladek
2015-12-03 17:59                             ` Josh Poimboeuf
2015-12-03 22:04                             ` Jiri Kosina
2015-11-03 14:58           ` [PATCH v2] livepatch: old_name.number scheme in livepatch sysfs directory Josh Poimboeuf
2015-11-03 16:09             ` Miroslav Benes
2015-11-03 16:50               ` Josh Poimboeuf
2015-11-03 20:42                 ` Chris J Arges
2015-11-03 20:42                   ` Chris J Arges
2015-11-04  9:52                 ` Miroslav Benes
2015-11-04  9:52                   ` Miroslav Benes
2015-11-04 16:03                   ` Josh Poimboeuf
2015-11-04 16:17                     ` Chris J Arges
2015-11-04 16:17                       ` Chris J Arges
2015-11-05 15:18                     ` Miroslav Benes
2015-11-05 15:56                       ` Josh Poimboeuf
2015-11-05 16:07                         ` Chris J Arges
2015-11-09 16:16                         ` [PATCH v3] livepatch: old_name,number " Chris J Arges
2015-11-09 16:16                           ` Chris J Arges
2015-11-09 20:56                           ` Josh Poimboeuf
2015-11-09 23:01                             ` Chris J Arges
2015-11-09 23:01                               ` Chris J Arges
2015-11-10  4:54                               ` Josh Poimboeuf
2015-11-10  8:49                                 ` Miroslav Benes
2015-11-10 13:40                                   ` Josh Poimboeuf
2015-11-10 13:40                                     ` Josh Poimboeuf
2015-11-10  9:02                           ` Miroslav Benes

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