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hw/9pfs: Add yield support for pwritev coroutine

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Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V 2011-05-08 12:36:59 +05:30
parent ffd668764c
commit f6b3c976c6
2 changed files with 19 additions and 0 deletions
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17
hw/9pfs/cofile.c
View File

@ -127,3 +127,20 @@ int v9fs_co_link(V9fsState *s, V9fsString *oldpath, V9fsString *newpath)
});
return err;
}
int v9fs_co_pwritev(V9fsState *s, V9fsFidState *fidp,
struct iovec *iov, int iovcnt, int64_t offset)
{
int fd;
int err;
fd = fidp->fs.fd;
v9fs_co_run_in_worker(
{
err = s->ops->pwritev(&s->ctx, fd, iov, iovcnt, offset);
if (err < 0) {
err = -errno;
}
});
return err;
}

2
hw/9pfs/virtio-9p-coth.h
View File

@ -89,4 +89,6 @@ extern int v9fs_co_fsync(V9fsState *, V9fsFidState *, int);
extern int v9fs_co_symlink(V9fsState *, V9fsFidState *, const char *,
const char *, gid_t);
extern int v9fs_co_link(V9fsState *, V9fsString *, V9fsString *);
extern int v9fs_co_pwritev(V9fsState *, V9fsFidState *,
struct iovec *, int, int64_t);
#endif