From d6852ac6f1dfc1396dee130993f8686cf53f5d2c Mon Sep 17 00:00:00 2001 From: ache Date: Sat, 24 Oct 2015 02:23:15 +0000 Subject: Since no room left in the _flags, reuse __SALC for O_APPEND. It helps to remove _fcntl() call from _ftello() and optimize seek position calculation in _swrite(). MFC after: 3 weeks --- lib/libc/stdio/stdio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'lib/libc/stdio/stdio.c') diff --git a/lib/libc/stdio/stdio.c b/lib/libc/stdio/stdio.c index 44ee0ab..fc2e74b 100644 --- a/lib/libc/stdio/stdio.c +++ b/lib/libc/stdio/stdio.c @@ -117,7 +117,8 @@ _swrite(FILE *fp, char const *buf, int n) ret = (*fp->_write)(fp->_cookie, buf, n); /* __SOFF removed even on success in case O_APPEND mode is set. */ if (ret >= 0) { - if ((fp->_flags & (__SAPP|__SOFF)) == (__SAPP|__SOFF) && + /* XXX: Reuse __SALC for O_APPEND. */ + if ((fp->_flags & __SOFF) && !(fp->_flags & __SALC) && fp->_offset <= OFF_MAX - ret) fp->_offset += ret; else -- cgit v1.1