diff options
author | 2017-04-25 03:31:15 -0700 | |
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committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/9pfs/cofile.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/9pfs/cofile.c')
-rw-r--r-- | qemu/hw/9pfs/cofile.c | 276 |
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; -} |