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() ...
Changes since v2:
- replace the local tests against null list elements
by one done directly by the list iteration macros
Changes since v3:
- effectively commit the last commit
The series is also available in the git repository at:
git://github.com/lucvoo/sparse.git fix-nested-pseudo-users-deletion-v4
for you to fetch changes up to bddf7d1e4ed81c3def7c6de2796a5489ca678399:
mark pseudo users as deleted instead of removing them (2017-08-05 00:14:02 +0200)
----------------------------------------------------------------
Luc Van Oostenryck (5):
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
ptrlist: avoid iteration on NULL entries
mark pseudo users as deleted instead of removing them
ptrlist.c | 2 +-
ptrlist.h | 15 ++++++++++++++-
simplify.c | 5 +++--
3 files changed, 18 insertions(+), 4 deletions(-)
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