[PATCH] freepgt: sys_mincore ignore FIRST_USER_PGD_NR
Remove use of FIRST_USER_PGD_NR from sys_mincore: it's inconsistent (no other
syscall refers to it), unnecessary (sys_mincore loops over vmas further down)
and incorrect (misses user addresses in ARM's first pgd).
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/mm/mincore.c b/mm/mincore.c
index 07833dc..7289078 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -118,9 +118,6 @@
if (start & ~PAGE_CACHE_MASK)
goto einval;
- if (start < FIRST_USER_PGD_NR * PGDIR_SIZE)
- goto enomem;
-
limit = TASK_SIZE;
if (start >= limit)
goto enomem;