CC: NFS maintainer + qemu-block
On 03/09/2020 10.31, Yonggang Luo wrote: > Signed-off-by: Yonggang Luo <luoyongg...@gmail.com> > --- > block/nfs.c | 26 +++++++++++++++++--------- > 1 file changed, 17 insertions(+), 9 deletions(-) > > diff --git a/block/nfs.c b/block/nfs.c > index 61a249a9fc..34b2cd5708 100644 > --- a/block/nfs.c > +++ b/block/nfs.c > @@ -24,7 +24,9 @@ > > #include "qemu/osdep.h" > > +#if !defined(_WIN32) > #include <poll.h> > +#endif > #include "qemu/config-file.h" > #include "qemu/error-report.h" > #include "qapi/error.h" > @@ -51,6 +53,12 @@ > #define QEMU_NFS_MAX_PAGECACHE_SIZE (8388608 / NFS_BLKSIZE) > #define QEMU_NFS_MAX_DEBUG_LEVEL 2 > > +#if defined (_WIN32) > +#define nfs_stat __stat64 > +#else > +#define nfs_stat stat > +#endif > + > typedef struct NFSClient { > struct nfs_context *context; > struct nfsfh *fh; > @@ -58,7 +66,7 @@ typedef struct NFSClient { > bool has_zero_init; > AioContext *aio_context; > QemuMutex mutex; > - blkcnt_t st_blocks; > + int64_t st_size; > bool cache_used; > NFSServer *server; > char *path; > @@ -70,7 +78,7 @@ typedef struct NFSRPC { > int ret; > int complete; > QEMUIOVector *iov; > - struct stat *st; > + struct nfs_stat *st; > Coroutine *co; > NFSClient *client; > } NFSRPC; > @@ -419,7 +427,7 @@ static int64_t nfs_client_open(NFSClient *client, > BlockdevOptionsNfs *opts, > int flags, int open_flags, Error **errp) > { > int64_t ret = -EINVAL; > - struct stat st; > + struct nfs_stat st; > char *file = NULL, *strp = NULL; > > qemu_mutex_init(&client->mutex); > @@ -545,7 +553,7 @@ static int64_t nfs_client_open(NFSClient *client, > BlockdevOptionsNfs *opts, > } > > ret = DIV_ROUND_UP(st.st_size, BDRV_SECTOR_SIZE); > - client->st_blocks = st.st_blocks; > + client->st_size = st.st_size; > client->has_zero_init = S_ISREG(st.st_mode); > *strp = '/'; > goto out; > @@ -729,11 +737,11 @@ static int64_t > nfs_get_allocated_file_size(BlockDriverState *bs) > { > NFSClient *client = bs->opaque; > NFSRPC task = {0}; > - struct stat st; > + struct nfs_stat st; > > if (bdrv_is_read_only(bs) && > !(bs->open_flags & BDRV_O_NOCACHE)) { > - return client->st_blocks * 512; > + return client->st_size; > } > > task.bs = bs; > @@ -746,7 +754,7 @@ static int64_t > nfs_get_allocated_file_size(BlockDriverState *bs) > nfs_set_events(client); > BDRV_POLL_WHILE(bs, !task.complete); > > - return (task.ret < 0 ? task.ret : st.st_blocks * 512); > + return (task.ret < 0 ? task.ret : st.st_size); > } > > static int coroutine_fn > @@ -778,7 +786,7 @@ static int nfs_reopen_prepare(BDRVReopenState *state, > BlockReopenQueue *queue, Error **errp) > { > NFSClient *client = state->bs->opaque; > - struct stat st; > + struct nfs_stat st; > int ret = 0; > > if (state->flags & BDRV_O_RDWR && bdrv_is_read_only(state->bs)) { > @@ -800,7 +808,7 @@ static int nfs_reopen_prepare(BDRVReopenState *state, > nfs_get_error(client->context)); > return ret; > } > - client->st_blocks = st.st_blocks; > + client->st_size = st.st_size; > } > > return 0; >