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Patch: slapd's o_abandonmutex is unnecessary (ITS#1733)

Full_Name: Hallvard B. Furuseth
Version: HEAD (2002-04-08)
OS: Linux
URL: http://folk.uio.no/hbf/OpenLDAP/abandonmutex.txt
Submission from: (NULL) (

o_abandonmutex is only used to protect the single operation of
(re)setting or testing o_abandon.  For such simple operations,
you can get the same effect just by declaring o_abandon as
`volatile sig_atomic_t'.  Here is a patch.

rc is LDAP_SUCCESS (0) when I skip the assignment to rc in
back-ldbm/modify.c.  Except for that, the patch is readable
without referring to the source.