From: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri "<jv...@linux.vnet.ibm.com> --- Makefile.objs | 2 +- hw/9pfs/cofile.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++ hw/9pfs/virtio-9p-coth.h | 1 + 3 files changed, 52 insertions(+), 1 deletions(-) create mode 100644 hw/9pfs/cofile.c
diff --git a/Makefile.objs b/Makefile.objs index 614bcaf..83d30bd 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -297,7 +297,7 @@ hw-obj-$(CONFIG_SOUND) += $(sound-obj-y) 9pfs-nested-$(CONFIG_VIRTFS) = virtio-9p.o virtio-9p-debug.o 9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-local.o virtio-9p-xattr.o 9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-xattr-user.o virtio-9p-posix-acl.o -9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-coth.o cofs.o codir.o +9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-coth.o cofs.o codir.o cofile.o hw-obj-$(CONFIG_REALLY_VIRTFS) += $(addprefix 9pfs/, $(9pfs-nested-y)) $(addprefix 9pfs/, $(9pfs-nested-y)): QEMU_CFLAGS+=$(GLIB_CFLAGS) diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c new file mode 100644 index 0000000..860b060 --- /dev/null +++ b/hw/9pfs/cofile.c @@ -0,0 +1,50 @@ + +/* + * Virtio 9p backend + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include "fsdev/qemu-fsdev.h" +#include "qemu-thread.h" +#include "qemu-coroutine.h" +#include "virtio-9p-coth.h" + + +typedef struct V9fsThLstatState { + int err; + V9fsState *s; + V9fsString *path; + struct stat *stbuf; + V9fsRequest request; +} V9fsThLstatState; + +static void v9fs_th_do_lstat(V9fsRequest *request) +{ + V9fsThLstatState *vsp = container_of(request, V9fsThLstatState, + request); + vsp->err = vsp->s->ops->lstat(&vsp->s->ctx, vsp->path->data, vsp->stbuf); + if (vsp->err < 0) { + vsp->err = -errno; + } +} + +int v9fs_co_lstat(V9fsState *s, V9fsString *path, struct stat *stbuf) +{ + V9fsThLstatState vs; + vs.s = s; + vs.path = path; + vs.stbuf = stbuf; + vs.request.func = v9fs_th_do_lstat; + vs.request.coroutine = qemu_coroutine_self(); + v9fs_qemu_submit_request(&vs.request); + qemu_coroutine_yield(); + return vs.err; +} diff --git a/hw/9pfs/virtio-9p-coth.h b/hw/9pfs/virtio-9p-coth.h index 57f30ff..aedeba9 100644 --- a/hw/9pfs/virtio-9p-coth.h +++ b/hw/9pfs/virtio-9p-coth.h @@ -56,4 +56,5 @@ extern off_t v9fs_co_telldir(V9fsState *, V9fsFidState *); extern void v9fs_co_seekdir(V9fsState *, V9fsFidState *, off_t); extern void v9fs_co_rewinddir(V9fsState *, V9fsFidState *); extern int v9fs_co_statfs(V9fsState *, V9fsString *, struct statfs *); +extern int v9fs_co_lstat(V9fsState *, V9fsString *, struct stat *); #endif -- 1.7.1