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maildirsize
2013 Jul 08
1
Non-blocking file_dotlock_open() in quota-maildir question
Hello,
Is it safe to change lines in plugins/quota/quota-maildir.c::maildirsize_write() from
? fd = file_dotlock_open_group(.., DOTLOCK_CREATE_FLAG_NONBLOCK, ..);
to
? fd = file_dotlock_open_group(.., 0, ..); ?
Rationale is: exim+cpanel frequently leave stale maldirsize.lock, but when quota plugin try to dotlock maildirsize, it do this with NONBLOCK flag and just once, so first lock fails with EAGAIN and second may never happen. (When last mail is over quota this also prevent user from further receiving any mail because quota remain exceeded, forver. This is annoi...