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-rw-r--r--qemu/hw/9pfs/cofile.c276
1 files changed, 0 insertions, 276 deletions
diff --git a/qemu/hw/9pfs/cofile.c b/qemu/hw/9pfs/cofile.c
deleted file mode 100644
index 293483e0c..000000000
--- a/qemu/hw/9pfs/cofile.c
+++ /dev/null
@@ -1,276 +0,0 @@
-
-/*
- * 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 "qemu/osdep.h"
-#include "fsdev/qemu-fsdev.h"
-#include "qemu/thread.h"
-#include "qemu/coroutine.h"
-#include "coth.h"
-
-int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
- V9fsStatDotl *v9stat)
-{
- int err = 0;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- if (s->ctx.exops.get_st_gen) {
- v9fs_path_read_lock(s);
- v9fs_co_run_in_worker(
- {
- err = s->ctx.exops.get_st_gen(&s->ctx, path, st_mode,
- &v9stat->st_gen);
- if (err < 0) {
- err = -errno;
- }
- });
- v9fs_path_unlock(s);
- }
- return err;
-}
-
-int v9fs_co_lstat(V9fsPDU *pdu, V9fsPath *path, struct stat *stbuf)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_path_read_lock(s);
- v9fs_co_run_in_worker(
- {
- err = s->ops->lstat(&s->ctx, path, stbuf);
- if (err < 0) {
- err = -errno;
- }
- });
- v9fs_path_unlock(s);
- return err;
-}
-
-int v9fs_co_fstat(V9fsPDU *pdu, V9fsFidState *fidp, struct stat *stbuf)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_co_run_in_worker(
- {
- err = s->ops->fstat(&s->ctx, fidp->fid_type, &fidp->fs, stbuf);
- if (err < 0) {
- err = -errno;
- }
- });
- /*
- * Some FS driver (local:mapped-file) can't support fetching attributes
- * using file descriptor. Use Path name in that case.
- */
- if (err == -EOPNOTSUPP) {
- err = v9fs_co_lstat(pdu, &fidp->path, stbuf);
- if (err == -ENOENT) {
- /*
- * fstat on an unlinked file. Work with partial results
- * returned from s->ops->fstat
- */
- err = 0;
- }
- }
- return err;
-}
-
-int v9fs_co_open(V9fsPDU *pdu, V9fsFidState *fidp, int flags)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_path_read_lock(s);
- v9fs_co_run_in_worker(
- {
- err = s->ops->open(&s->ctx, &fidp->path, flags, &fidp->fs);
- if (err == -1) {
- err = -errno;
- } else {
- err = 0;
- }
- });
- v9fs_path_unlock(s);
- if (!err) {
- total_open_fd++;
- if (total_open_fd > open_fd_hw) {
- v9fs_reclaim_fd(pdu);
- }
- }
- return err;
-}
-
-int v9fs_co_open2(V9fsPDU *pdu, V9fsFidState *fidp, V9fsString *name, gid_t gid,
- int flags, int mode, 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 & 07777;
- cred.fc_uid = fidp->uid;
- cred.fc_gid = gid;
- /*
- * Hold the directory fid lock so that directory path name
- * don't change. Read lock is fine because this fid cannot
- * be used by any other operation.
- */
- v9fs_path_read_lock(s);
- v9fs_co_run_in_worker(
- {
- err = s->ops->open2(&s->ctx, &fidp->path,
- name->data, flags, &cred, &fidp->fs);
- if (err < 0) {
- err = -errno;
- } else {
- v9fs_path_init(&path);
- err = v9fs_name_to_path(s, &fidp->path, name->data, &path);
- if (!err) {
- err = s->ops->lstat(&s->ctx, &path, stbuf);
- if (err < 0) {
- err = -errno;
- s->ops->close(&s->ctx, &fidp->fs);
- } else {
- v9fs_path_copy(&fidp->path, &path);
- }
- } else {
- s->ops->close(&s->ctx, &fidp->fs);
- }
- v9fs_path_free(&path);
- }
- });
- v9fs_path_unlock(s);
- if (!err) {
- total_open_fd++;
- if (total_open_fd > open_fd_hw) {
- v9fs_reclaim_fd(pdu);
- }
- }
- return err;
-}
-
-int v9fs_co_close(V9fsPDU *pdu, V9fsFidOpenState *fs)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_co_run_in_worker(
- {
- err = s->ops->close(&s->ctx, fs);
- if (err < 0) {
- err = -errno;
- }
- });
- if (!err) {
- total_open_fd--;
- }
- return err;
-}
-
-int v9fs_co_fsync(V9fsPDU *pdu, V9fsFidState *fidp, int datasync)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_co_run_in_worker(
- {
- err = s->ops->fsync(&s->ctx, fidp->fid_type, &fidp->fs, datasync);
- if (err < 0) {
- err = -errno;
- }
- });
- return err;
-}
-
-int v9fs_co_link(V9fsPDU *pdu, V9fsFidState *oldfid,
- V9fsFidState *newdirfid, V9fsString *name)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_path_read_lock(s);
- v9fs_co_run_in_worker(
- {
- err = s->ops->link(&s->ctx, &oldfid->path,
- &newdirfid->path, name->data);
- if (err < 0) {
- err = -errno;
- }
- });
- v9fs_path_unlock(s);
- return err;
-}
-
-int v9fs_co_pwritev(V9fsPDU *pdu, V9fsFidState *fidp,
- struct iovec *iov, int iovcnt, int64_t offset)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_co_run_in_worker(
- {
- err = s->ops->pwritev(&s->ctx, &fidp->fs, iov, iovcnt, offset);
- if (err < 0) {
- err = -errno;
- }
- });
- return err;
-}
-
-int v9fs_co_preadv(V9fsPDU *pdu, V9fsFidState *fidp,
- struct iovec *iov, int iovcnt, int64_t offset)
-{
- int err;
- V9fsState *s = pdu->s;
-
- if (v9fs_request_cancelled(pdu)) {
- return -EINTR;
- }
- v9fs_co_run_in_worker(
- {
- err = s->ops->preadv(&s->ctx, &fidp->fs, iov, iovcnt, offset);
- if (err < 0) {
- err = -errno;
- }
- });
- return err;
-}