Due to my bad review suggestion for the fix for BZ #15089 a check
was removed from systrim to prevent sbrk being called with a zero
argument. Add the check back to avoid this useless work.
ChangeLog:
2014-06-19 Will Newton <will.newton@linaro.org>
* malloc/malloc.c (systrim): If extra is zero then return
early.
+2014-06-19 Will Newton <will.newton@linaro.org>
+
+ * malloc/malloc.c (systrim): If extra is zero then return
+ early.
+
2014-06-19 Siddhesh Poyarekar <siddhesh@redhat.com>
* benchtests/Makefile ($(objpfx)bench-%.c): Remove $(.).
/* Release in pagesize units, keeping at least one page */
extra = (top_area - pad) & ~(pagesz - 1);
+ if (extra == 0)
+ return 0;
+
/*
Only proceed if end of memory is where we last set it.
This avoids problems if there were foreign sbrk calls.