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| author | Michael Adam <obnox@samba.org> | 2008-08-05 22:38:44 +0200 |
|---|---|---|
| committer | Michael Adam <obnox@samba.org> | 2008-08-05 23:43:53 +0200 |
| commit | b59ed9c05f5d5831e6abf5db6f58a75ec98902f8 (patch) | |
| tree | 3d1b2193b336c443072a87785b08317483ec3f84 /swat | |
| parent | 6e16022d625217bccc273f647c34f55030f78334 (diff) | |
| download | samba-b59ed9c05f5d5831e6abf5db6f58a75ec98902f8.tar.gz samba-b59ed9c05f5d5831e6abf5db6f58a75ec98902f8.tar.bz2 samba-b59ed9c05f5d5831e6abf5db6f58a75ec98902f8.zip | |
idmap_tdb2: fix a race condition in idmap_tdb2_allocate_id().
The race is a regression introduced by the change to dbwrap.
It might have led to two concurrent processes returning the same id.
This fix is achieved by changing dbwrap_change_uint32_atomic() to
match the original behaviour of tdb_change_uint32_atomic(), which
is the following: *oldval is used as initial value when
the value does not yet exist and that the old value should be
returned in *oldval.
dbwrap_change_uint32_atomic() is used (only) in idmap_tdb2.c,
to get new ids.
Michael
(This used to be commit 72bd83fea7572a6202027b200d192c05023aa633)
Diffstat (limited to 'swat')
0 files changed, 0 insertions, 0 deletions