From: Zheng Liu <wenqing.lz@xxxxxxxxxx> FALLOC_FL_NO_HIDE_STALE flag is defined in fallocate for avoiding a uninitialized->initialized conversion. Signed-off-by: Zheng Liu <wenqing.lz@xxxxxxxxxx> --- fs/open.c | 2 +- include/linux/falloc.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletions(-) diff --git a/fs/open.c b/fs/open.c index 5720854..1d3117f 100644 --- a/fs/open.c +++ b/fs/open.c @@ -223,7 +223,7 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len) return -EINVAL; /* Return error if mode is not supported */ - if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) + if (mode & ~FALLOC_FL_SUPPORTED_FLAGS) return -EOPNOTSUPP; /* Punch hole must have keep size set */ diff --git a/include/linux/falloc.h b/include/linux/falloc.h index 73e0b62..0d5d5aa 100644 --- a/include/linux/falloc.h +++ b/include/linux/falloc.h @@ -3,6 +3,11 @@ #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 /* no stale allocation */ + +#define FALLOC_FL_SUPPORTED_FLAGS (FALLOC_FL_KEEP_SIZE | \ + FALLOC_FL_PUNCH_HOLE | \ + FALLOC_FL_NO_HIDE_STALE) #ifdef __KERNEL__ -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
