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lib: fix TLS log buffer on NetBSD

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... this didn't work on NetBSD.  Like, at all.  It returns a positive
error code from posix_fallocate() and then we bang our head against a
brick wall trying to write to the mmap'd buffer.

Signed-off-by: David Lamparter <equinox@diac24.net>
This commit is contained in:
David Lamparter 2020-07-19 11:14:48 +02:00
parent 67ce4ba19b
commit 6a3b431b85
1 changed files with 3 additions and 3 deletions
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6
lib/zlog.c
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@ -246,10 +246,10 @@ void zlog_tls_buffer_init(void)
fchown(mmfd, zlog_uid, zlog_gid);
#ifdef HAVE_POSIX_FALLOCATE
if (posix_fallocate(mmfd, 0, TLS_LOG_BUF_SIZE) < 0) {
#else
if (ftruncate(mmfd, TLS_LOG_BUF_SIZE) < 0) {
if (posix_fallocate(mmfd, 0, TLS_LOG_BUF_SIZE) != 0)
/* note next statement is under above if() */
#endif
if (ftruncate(mmfd, TLS_LOG_BUF_SIZE) < 0) {
zlog_err("failed to allocate thread log buffer \"%s\": %s",
mmpath, strerror(errno));
goto out_anon_unlink;