Re: [Qemu-devel] [PATCH v5 1/5] 9p: unsigned type for type, version, path

[Greg Kurz <groug@kaod.org>]

On Wed, 3 Jul 2019 12:55:45 +0200
Christian Schoenebeck via Qemu-devel <qemu-devel@nongnu.org> wrote:

> There is no need for signedness on these QID fields for 9p.
> 
> Signed-off-by: Antonios Motakis <antonios.motakis@huawei.com>
> [CS: - Also make QID type unsigned.
>      - Adjust donttouch_stat() to new types.
>      - Adjust trace-events to new types. ]
> Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
> ---

Applied to https://github.com/gkurz/qemu/commits/9p-next .

Thanks,

--
Greg

>  fsdev/9p-marshal.h   |  6 +++---
>  hw/9pfs/9p.c         |  6 +++---
>  hw/9pfs/trace-events | 14 +++++++-------
>  3 files changed, 13 insertions(+), 13 deletions(-)
> 
> diff --git a/fsdev/9p-marshal.h b/fsdev/9p-marshal.h
> index c8823d878f..8f3babb60a 100644
> --- a/fsdev/9p-marshal.h
> +++ b/fsdev/9p-marshal.h
> @@ -9,9 +9,9 @@ typedef struct V9fsString
>  
>  typedef struct V9fsQID
>  {
> -    int8_t type;
> -    int32_t version;
> -    int64_t path;
> +    uint8_t type;
> +    uint32_t version;
> +    uint64_t path;
>  } V9fsQID;
>  
>  typedef struct V9fsStat
> diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
> index 55821343e5..586a6dccba 100644
> --- a/hw/9pfs/9p.c
> +++ b/hw/9pfs/9p.c
> @@ -743,9 +743,9 @@ static int donttouch_stat(V9fsStat *stat)
>  {
>      if (stat->type == -1 &&
>          stat->dev == -1 &&
> -        stat->qid.type == -1 &&
> -        stat->qid.version == -1 &&
> -        stat->qid.path == -1 &&
> +        stat->qid.type == 0xff &&
> +        stat->qid.version == (uint32_t) -1 &&
> +        stat->qid.path == (uint64_t) -1 &&
>          stat->mode == -1 &&
>          stat->atime == -1 &&
>          stat->mtime == -1 &&
> diff --git a/hw/9pfs/trace-events b/hw/9pfs/trace-events
> index c0a0a4ab5d..10188daf7f 100644
> --- a/hw/9pfs/trace-events
> +++ b/hw/9pfs/trace-events
> @@ -6,7 +6,7 @@ v9fs_rerror(uint16_t tag, uint8_t id, int err) "tag %d id %d err %d"
>  v9fs_version(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s"
>  v9fs_version_return(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s"
>  v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, char* aname) "tag %u id %u fid %d afid %d uname %s aname %s"
> -v9fs_attach_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d type %d version %d path %"PRId64
> +v9fs_attach_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %u id %u type %u version %u path %"PRIu64
>  v9fs_stat(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d"
>  v9fs_stat_return(uint16_t tag, uint8_t id, int32_t mode, int32_t atime, int32_t mtime, int64_t length) "tag %d id %d stat={mode %d atime %d mtime %d length %"PRId64"}"
>  v9fs_getattr(uint16_t tag, uint8_t id, int32_t fid, uint64_t request_mask) "tag %d id %d fid %d request_mask %"PRIu64
> @@ -14,9 +14,9 @@ v9fs_getattr_return(uint16_t tag, uint8_t id, uint64_t result_mask, uint32_t mod
>  v9fs_walk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, uint16_t nwnames) "tag %d id %d fid %d newfid %d nwnames %d"
>  v9fs_walk_return(uint16_t tag, uint8_t id, uint16_t nwnames, void* qids) "tag %d id %d nwnames %d qids %p"
>  v9fs_open(uint16_t tag, uint8_t id, int32_t fid, int32_t mode) "tag %d id %d fid %d mode %d"
> -v9fs_open_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d"
> +v9fs_open_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %u id %u qid={type %u version %u path %"PRIu64"} iounit %d"
>  v9fs_lcreate(uint16_t tag, uint8_t id, int32_t dfid, int32_t flags, int32_t mode, uint32_t gid) "tag %d id %d dfid %d flags %d mode %d gid %u"
> -v9fs_lcreate_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d"
> +v9fs_lcreate_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int32_t iounit) "tag %u id %u qid={type %u version %u path %"PRIu64"} iounit %d"
>  v9fs_fsync(uint16_t tag, uint8_t id, int32_t fid, int datasync) "tag %d id %d fid %d datasync %d"
>  v9fs_clunk(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d"
>  v9fs_read(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t max_count) "tag %d id %d fid %d off %"PRIu64" max_count %u"
> @@ -26,21 +26,21 @@ v9fs_readdir_return(uint16_t tag, uint8_t id, uint32_t count, ssize_t retval) "t
>  v9fs_write(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t count, int cnt) "tag %d id %d fid %d off %"PRIu64" count %u cnt %d"
>  v9fs_write_return(uint16_t tag, uint8_t id, int32_t total, ssize_t err) "tag %d id %d total %d err %zd"
>  v9fs_create(uint16_t tag, uint8_t id, int32_t fid, char* name, int32_t perm, int8_t mode) "tag %d id %d fid %d name %s perm %d mode %d"
> -v9fs_create_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d"
> +v9fs_create_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %u id %u qid={type %u version %u path %"PRIu64"} iounit %d"
>  v9fs_symlink(uint16_t tag, uint8_t id, int32_t fid,  char* name, char* symname, uint32_t gid) "tag %d id %d fid %d name %s symname %s gid %u"
> -v9fs_symlink_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}"
> +v9fs_symlink_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %u id %u qid={type %u version %u path %"PRIu64"}"
>  v9fs_flush(uint16_t tag, uint8_t id, int16_t flush_tag) "tag %d id %d flush_tag %d"
>  v9fs_link(uint16_t tag, uint8_t id, int32_t dfid, int32_t oldfid, char* name) "tag %d id %d dfid %d oldfid %d name %s"
>  v9fs_remove(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d"
>  v9fs_wstat(uint16_t tag, uint8_t id, int32_t fid, int32_t mode, int32_t atime, int32_t mtime) "tag %u id %u fid %d stat={mode %d atime %d mtime %d}"
>  v9fs_mknod(uint16_t tag, uint8_t id, int32_t fid, int mode, int major, int minor) "tag %d id %d fid %d mode %d major %d minor %d"
> -v9fs_mknod_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}"
> +v9fs_mknod_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %u id %u qid={type %u version %u path %"PRIu64"}"
>  v9fs_lock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length) "tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64
>  v9fs_lock_return(uint16_t tag, uint8_t id, int8_t status) "tag %d id %d status %d"
>  v9fs_getlock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length)"tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64
>  v9fs_getlock_return(uint16_t tag, uint8_t id, uint8_t type, uint64_t start, uint64_t length, uint32_t proc_id) "tag %d id %d type %d start %"PRIu64" length %"PRIu64" proc_id %u"
>  v9fs_mkdir(uint16_t tag, uint8_t id, int32_t fid, char* name, int mode, uint32_t gid) "tag %u id %u fid %d name %s mode %d gid %u"
> -v9fs_mkdir_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d"
> +v9fs_mkdir_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int err) "tag %u id %u qid={type %u version %u path %"PRIu64"} err %d"
>  v9fs_xattrwalk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, char* name) "tag %d id %d fid %d newfid %d name %s"
>  v9fs_xattrwalk_return(uint16_t tag, uint8_t id, int64_t size) "tag %d id %d size %"PRId64
>  v9fs_xattrcreate(uint16_t tag, uint8_t id, int32_t fid, char* name, uint64_t size, int flags) "tag %d id %d fid %d name %s size %"PRIu64" flags %d"