diff options
| -rw-r--r-- | block/file-posix.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/block/file-posix.c b/block/file-posix.c index 1cf4ee4..e09e15b 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -1444,9 +1444,22 @@ out: #ifdef CONFIG_XFS static int xfs_write_zeroes(BDRVRawState *s, int64_t offset, uint64_t bytes) { + int64_t len; struct xfs_flock64 fl; int err; + len = lseek(s->fd, 0, SEEK_END); + if (len < 0) { + return -errno; + } + + if (offset + bytes > len) { + /* XFS_IOC_ZERO_RANGE does not increase the file length */ + if (ftruncate(s->fd, offset + bytes) < 0) { + return -errno; + } + } + memset(&fl, 0, sizeof(fl)); fl.l_whence = SEEK_SET; fl.l_start = offset; |