From: Li Qiang Date: Tue, 1 Nov 2016 12:00:40 +0100 Subject: [PATCH] 9pfs: convert 'len/copied_len' field in V9fsXattr to the type of uint64_t The 'len' in V9fsXattr comes from the 'size' argument in setxattr() function in guest. The setxattr() function's declaration is this: int setxattr(const char *path, const char *name, const void *value, size_t size, int flags); and 'size' is treated as u64 in linux kernel client code: int p9_client_xattrcreate(struct p9_fid *fid, const char *name, u64 attr_size, int flags) So the 'len' should have an type of 'uint64_t'. The 'copied_len' in V9fsXattr is used to account for copied bytes, it should also have an type of 'uint64_t'. Suggested-by: Greg Kurz Signed-off-by: Li Qiang Reviewed-by: Greg Kurz Signed-off-by: Greg Kurz (cherry picked from commit 8495f9ad26d398f01e208a53f1a5152483a16084) --- hw/9pfs/9p.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/9pfs/9p.h b/hw/9pfs/9p.h index 5750d67..4e3bc52 100644 --- a/hw/9pfs/9p.h +++ b/hw/9pfs/9p.h @@ -162,8 +162,8 @@ typedef struct V9fsConf typedef struct V9fsXattr { - int64_t copied_len; - int64_t len; + uint64_t copied_len; + uint64_t len; void *value; V9fsString name; int flags;