From bbdd68086ca4a8976226e23efd08e2058d34dd81 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 27 Sep 2012 09:29:33 -0400 Subject: [PATCH] fs: reserve fallocate flag codepoint As discussed at the Plumber's Conference, reserve the bit 0x04 in fallocate() to prevent collisions with a commonly used out-of-tree patch which implements the no-hide-stale feature. Signed-off-by: "Theodore Ts'o" --- include/linux/falloc.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 73e0b62..d39b824 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -3,6 +3,7 @@ #define FALLOC_FL_KEEP_SIZE 0x01 /* default is extend size */ #define FALLOC_FL_PUNCH_HOLE 0x02 /* de-allocates range */ +#define FALLOC_FL_NO_HIDE_STALE 0x04 /* reserved codepoint */ #ifdef __KERNEL__ -- 2.7.4