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From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To: Christopher Li <sparse@chrisli.org>
Cc: linux-sparse@vger.kernel.org,
	Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH 0/4] fix list corruption with recursive remove_usage()
Date: Fri,  4 Aug 2017 22:09:11 +0200	[thread overview]
Message-ID: <20170804200915.56738-1-luc.vanoostenryck@gmail.com> (raw)
In-Reply-To: <CANeU7QkRWygQB_dsD4o4omB-G_xtZZVLZP4-DgaK3iDMd=HB4w@mail.gmail.com>

The goal of this series is to avoid list corruption that may happen
with pseudo-users when deleting one while doing nested ptrlist walking.
This can occurs with mutually recursive calls:
	remove_usage() - kill_instruction() - remove_usage() - ...

Luc Van Oostenryck (4):
  ptrlist: add a counter for the number of removed elemnets
  ptrlist: adjust ptr_list_size for the new ->rm field
  ptrlist: add MARK_CURRENT_DELETED
  mark pseudo users as deleted instead of removing them

 flow.c      | 28 ++++++++++++++++++++++------
 linearize.c |  2 ++
 memops.c    |  5 ++++-
 ptrlist.c   |  2 +-
 ptrlist.h   | 11 ++++++++++-
 simplify.c  | 10 ++++++++--
 unssa.c     |  2 ++
 7 files changed, 49 insertions(+), 11 deletions(-)

-- 
2.13.2


  reply	other threads:[~2017-08-04 20:09 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-10 15:32 [PATCH RFC] Let pseudo->users loop on duplicate version of list Christopher Li
2017-07-11 20:53 ` Christopher Li
2017-07-11 21:04   ` Dibyendu Majumdar
2017-07-12  5:29     ` Christopher Li
2017-07-12 15:56       ` Dibyendu Majumdar
2017-07-12 17:03         ` Christopher Li
2017-07-12 18:05           ` Dibyendu Majumdar
2017-07-13  5:27             ` Christopher Li
2017-07-19 21:14               ` Luc Van Oostenryck
2017-07-19 21:42                 ` Christopher Li
2017-07-19 22:51                   ` Luc Van Oostenryck
2017-07-20  2:34                     ` Christopher Li
2017-08-02 23:44                       ` Luc Van Oostenryck
2017-08-03  0:50                         ` Christopher Li
2017-08-03 10:18                           ` Luc Van Oostenryck
2017-08-03 23:48                             ` Christopher Li
2017-08-04  0:41                               ` Luc Van Oostenryck
2017-08-04  2:22                                 ` Christopher Li
2017-08-04 10:38                                   ` Luc Van Oostenryck
2017-08-04 14:48                                     ` Christopher Li
2017-08-04 16:58                                       ` Luc Van Oostenryck
     [not found]                               ` <20170804002230.5047-1-luc.vanoostenryck@gmail.com>
2017-08-04 14:54                                 ` Fwd: [PATCH] mark pseudo user as deleted instead of removing them Christopher Li
2017-08-04 15:29                                   ` Christopher Li
2017-08-04 15:58                                     ` Luc Van Oostenryck
2017-08-04 18:19                                       ` Christopher Li
2017-08-04 19:12                                         ` Luc Van Oostenryck
2017-08-04 19:24                                           ` Christopher Li
2017-08-04 20:09                                             ` Luc Van Oostenryck [this message]
2017-08-04 20:09                                               ` [PATCH 1/4] ptrlist: add a counter for the number of removed elemnets Luc Van Oostenryck
2017-08-04 20:09                                               ` [PATCH 2/4] ptrlist: adjust ptr_list_size for the new ->rm field Luc Van Oostenryck
2017-08-04 20:09                                               ` [PATCH 3/4] ptrlist: add MARK_CURRENT_DELETED Luc Van Oostenryck
2017-08-04 20:09                                               ` [PATCH 4/4] mark pseudo users as deleted instead of removing them Luc Van Oostenryck
2017-08-04 20:17                                                 ` Christopher Li
2017-08-04 20:18                                                   ` Christopher Li
2017-08-04 20:34                                                   ` Luc Van Oostenryck
2017-08-04 20:48                                                     ` Christopher Li
2017-08-04 21:03                                                       ` Luc Van Oostenryck
2017-08-04 21:14                                                         ` Christopher Li
2017-08-04 21:34                                                           ` Luc Van Oostenryck
2017-08-04 16:54                                     ` [PATCH] mark pseudo user " Linus Torvalds
2017-08-04 18:33                                       ` Christopher Li
2017-08-04 20:08                                         ` Christopher Li
2017-08-04 20:37                                           ` Christopher Li
2017-07-13 12:23             ` [PATCH RFC] Let pseudo->users loop on duplicate version of list Christopher Li

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