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hw/9pfs: Implement TFLUSH operation

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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 2011-08-02 11:36:17 +05:30
parent ce421a1961
commit bccacf6c79
8 changed files with 439 additions and 265 deletions
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44
hw/9pfs/codir.c
View file

@ -17,11 +17,15 @@
#include "qemu-coroutine.h"
#include "virtio-9p-coth.h"
int v9fs_co_readdir_r(V9fsState *s, V9fsFidState *fidp, struct dirent *dent,
int v9fs_co_readdir_r(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent *dent,
struct dirent **result)
{
int err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;
}
v9fs_co_run_in_worker(
{
errno = 0;
@ -35,10 +39,14 @@ int v9fs_co_readdir_r(V9fsState *s, V9fsFidState *fidp, struct dirent *dent,
return err;
}
off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)
off_t v9fs_co_telldir(V9fsPDU *pdu, V9fsFidState *fidp)
{
off_t err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;
}
v9fs_co_run_in_worker(
{
err = s->ops->telldir(&s->ctx, fidp->fs.dir);
@ -49,29 +57,41 @@ off_t v9fs_co_telldir(V9fsState *s, V9fsFidState *fidp)
return err;
}
void v9fs_co_seekdir(V9fsState *s, V9fsFidState *fidp, off_t offset)
void v9fs_co_seekdir(V9fsPDU *pdu, V9fsFidState *fidp, off_t offset)
{
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return;
}
v9fs_co_run_in_worker(
{
s->ops->seekdir(&s->ctx, fidp->fs.dir, offset);
});
}
void v9fs_co_rewinddir(V9fsState *s, V9fsFidState *fidp)
void v9fs_co_rewinddir(V9fsPDU *pdu, V9fsFidState *fidp)
{
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return;
}
v9fs_co_run_in_worker(
{
s->ops->rewinddir(&s->ctx, fidp->fs.dir);
});
}
int v9fs_co_mkdir(V9fsState *s, V9fsFidState *fidp, V9fsString *name,
int v9fs_co_mkdir(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name,
mode_t mode, uid_t uid, gid_t gid, struct stat *stbuf)
{
int err;
FsCred cred;
V9fsPath path;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;;
}
cred_init(&cred);
cred.fc_mode = mode;
cred.fc_uid = uid;
@ -98,10 +118,14 @@ int v9fs_co_mkdir(V9fsState *s, V9fsFidState *fidp, V9fsString *name,
return err;
}
int v9fs_co_opendir(V9fsState *s, V9fsFidState *fidp)
int v9fs_co_opendir(V9fsPDU *pdu, V9fsFidState *fidp)
{
int err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;;
}
v9fs_path_read_lock(s);
v9fs_co_run_in_worker(
{
@ -116,16 +140,20 @@ int v9fs_co_opendir(V9fsState *s, V9fsFidState *fidp)
if (!err) {
total_open_fd++;
if (total_open_fd > open_fd_hw) {
v9fs_reclaim_fd(s);
v9fs_reclaim_fd(pdu);
}
}
return err;
}
int v9fs_co_closedir(V9fsState *s, DIR *dir)
int v9fs_co_closedir(V9fsPDU *pdu, DIR *dir)
{
int err;
V9fsState *s = pdu->s;
if (v9fs_request_cancelled(pdu)) {
return -EINTR;;
}
v9fs_co_run_in_worker(
{
err = s->ops->closedir(&s->ctx, dir);