The pattern
do {
if (fallocate(s->fd, mode, offset, len) == 0) {
return 0;
}
} while (errno == EINTR);
ret = translate_err(-errno);
will be commonly useful in next patches. Create helper for it.
Signed-off-by: Denis V. Lunev <d...@openvz.org>
CC: Kevin Wolf <kw...@redhat.com>
CC: Stefan Hajnoczi <stefa...@redhat.com>
CC: Peter Lieven <p...@kamp.de>
CC: Fam Zheng <f...@redhat.com>
---
block/raw-posix.c | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 24300d0..2aa268a 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -902,6 +902,18 @@ static int translate_err(int err)
return err;
}
+#if defined(CONFIG_FALLOCATE_PUNCH_HOLE)
+static int do_fallocate(int fd, int mode, off_t offset, off_t len)
+{
+ do {
+ if (fallocate(fd, mode, offset, len) == 0) {
+ return 0;
+ }
+ } while (errno == EINTR);
+ return translate_err(-errno);
+}
+#endif
+
static ssize_t handle_aiocb_write_zeroes(RawPosixAIOData *aiocb)
{
int ret = -EOPNOTSUPP;
@@ -965,14 +977,8 @@ static ssize_t handle_aiocb_discard(RawPosixAIOData *aiocb)
#endif
#ifdef CONFIG_FALLOCATE_PUNCH_HOLE
- do {
- if (fallocate(s->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
- aiocb->aio_offset, aiocb->aio_nbytes) == 0) {
- return 0;
- }
- } while (errno == EINTR);
-
- ret = -errno;
+ ret = do_fallocate(s->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ aiocb->aio_offset, aiocb->aio_nbytes);
#endif
}
--
1.9.1
