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hw/9pfs: Add yield support to xattr related coroutine

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This include llistxattr and lgetxattr.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This commit is contained in:
Aneesh Kumar K.V 2011-05-18 16:05:34 -07:00
parent 65c05f9a54
commit 1ceffa546a
3 changed files with 54 additions and 0 deletions
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1
Makefile.objs
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@ -306,6 +306,7 @@ hw-obj-$(CONFIG_SOUND) += $(sound-obj-y)
9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-local.o virtio-9p-xattr.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-$(CONFIG_VIRTFS) += virtio-9p-xattr-user.o virtio-9p-posix-acl.o
9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-coth.o cofs.o codir.o cofile.o 9pfs-nested-$(CONFIG_VIRTFS) += virtio-9p-coth.o cofs.o codir.o cofile.o
9pfs-nested-$(CONFIG_VIRTFS) += coxattr.o
hw-obj-$(CONFIG_REALLY_VIRTFS) += $(addprefix 9pfs/, $(9pfs-nested-y)) hw-obj-$(CONFIG_REALLY_VIRTFS) += $(addprefix 9pfs/, $(9pfs-nested-y))
$(addprefix 9pfs/, $(9pfs-nested-y)): QEMU_CFLAGS+=$(GLIB_CFLAGS) $(addprefix 9pfs/, $(9pfs-nested-y)): QEMU_CFLAGS+=$(GLIB_CFLAGS)

50
hw/9pfs/coxattr.c Normal file
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@ -0,0 +1,50 @@
/*
* Virtio 9p backend
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Aneesh Kumar K.V <aneesh.kumar@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"
int v9fs_co_llistxattr(V9fsState *s, V9fsString *path, void *value, size_t size)
{
int err;
v9fs_co_run_in_worker(
{
err = s->ops->llistxattr(&s->ctx, path->data, value, size);
if (err < 0) {
err = -errno;
}
});
return err;
}
int v9fs_co_lgetxattr(V9fsState *s, V9fsString *path,
V9fsString *xattr_name,
void *value, size_t size)
{
int err;
v9fs_co_run_in_worker(
{
err = s->ops->lgetxattr(&s->ctx, path->data,
xattr_name->data,
value, size);
if (err < 0) {
err = -errno;
}
});
return err;
}

3
hw/9pfs/virtio-9p-coth.h
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@ -68,4 +68,7 @@ extern int v9fs_co_chmod(V9fsState *, V9fsString *, mode_t);
extern int v9fs_co_utimensat(V9fsState *, V9fsString *, struct timespec [2]); extern int v9fs_co_utimensat(V9fsState *, V9fsString *, struct timespec [2]);
extern int v9fs_co_chown(V9fsState *, V9fsString *, uid_t, gid_t); extern int v9fs_co_chown(V9fsState *, V9fsString *, uid_t, gid_t);
extern int v9fs_co_truncate(V9fsState *, V9fsString *, off_t); extern int v9fs_co_truncate(V9fsState *, V9fsString *, off_t);
extern int v9fs_co_llistxattr(V9fsState *, V9fsString *, void *, size_t);
extern int v9fs_co_lgetxattr(V9fsState *, V9fsString *,
V9fsString *, void *, size_t);
#endif #endif