[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH] hw/9pfs: Add CephFS support in VirtFS
|
From: |
Greg Kurz |
|
Subject: |
Re: [Qemu-devel] [PATCH] hw/9pfs: Add CephFS support in VirtFS |
|
Date: |
Tue, 5 Apr 2016 17:31:32 +0200 |
On Tue, 5 Apr 2016 23:27:33 +0800
Jevon Qiao <address@hidden> wrote:
> Hi Greg,
>
> Any further comment?
>
> Thanks,
> Jevon
Hi Jevon,
Yes ! I could at last resume the review of your patch today. You can expect
an answer this week.
Cheers.
--
Greg
> On 15/3/16 22:16, Jevon Qiao wrote:
> > On 15/3/16 21:46, Greg Kurz wrote:
> >> On Tue, 15 Mar 2016 21:39:45 +0800
> >> Jevon Qiao <address@hidden> wrote:
> >>
> >>> On 15/3/16 17:30, Greg Kurz wrote:
> >>>> On Tue, 15 Mar 2016 00:02:48 +0800
> >>>> Jevon Qiao <address@hidden> wrote:
> >>>>> Ceph as a promising unified distributed storage system is widely
> >>>>> used in the
> >>>>> world of OpenStack. OpenStack users deploying Ceph for block
> >>>>> (Cinder) and
> >>>>> object (S3/Swift) are unsurprisingly looking at Manila and CephFS
> >>>>> to round out
> >>>>> a unified storage solution. Since the typical hypervisor people
> >>>>> are using is
> >>>>> Qemu/KVM, it is necessary to provide a high performance, easy to
> >>>>> use, file
> >>>>> system service in it. VirtFS aims to offers paravirtualized system
> >>>>> services and
> >>>>> simple passthrough for directories from host to guest, which
> >>>>> currently only
> >>>>> support local file system, this patch wants to add CephFS support
> >>>>> in VirtFS.
> >>>>>
> >>>>> Signed-off-by: Jevon Qiao <address@hidden>
> >>>>> ---
> >>>> Hi Jevon,
> >>>>
> >>>> I just want to remind some rules about posting patches:
> >>>> - add a version when you post another iteration of the same patch
> >>>> or series
> >>>> Looking at "Add CephFS support in VirtFS" in the archives, it
> >>>> seems it is v3
> >>>> - provide a list of the changes that were applied since the
> >>>> previous version
> >>>> This list should be added below the --- of the patch changelog.
> >>>> Something like:
> >>>>
> >>>> v3: - fixed format errors
> >>>> - dropped extraneous -lrados from configure script
> >>>> - bla bla ...
> >>> Thank you for telling me this, I'll do it in the next revision if there
> >>> is, is it OK?
> >> Sure !
> > Thanks.
> >>>> I'll try to review this soon, but in any case it is 2.7 material.
> >>> What does '2.7 material' mean?
> >>>
> >> I target this feature for QEMU 2.7, not QEMU 2.6 (next release).
> > Ok, got it.
> > /Jevon
> >>> Thanks,
> >>> Jevon
> >>>> Cheers.
> >>>>
> >>>> --
> >>>> Greg
> >>>>> configure | 33 ++
> >>>>> fsdev/qemu-fsdev.c | 1 +
> >>>>> fsdev/qemu-fsdev.h | 3 +-
> >>>>> hw/9pfs/9p-cephfs.c | 836
> >>>>> ++++++++++++++++++++++++++++++++++++++
> >>>>> hw/9pfs/Makefile.objs | 3 +
> >>>>> scripts/analyse-9p-simpletrace.py | 213 ----------
> >>>>> scripts/analyze-9p-simpletrace.py | 306 ++++++++++++++
> >>>>> trace-events | 33 ++
> >>>>> 8 files changed, 1214 insertions(+), 214 deletions(-)
> >>>>> create mode 100644 hw/9pfs/9p-cephfs.c
> >>>>> delete mode 100755 scripts/analyse-9p-simpletrace.py
> >>>>> create mode 100755 scripts/analyze-9p-simpletrace.py
> >>>>>
> >>>>> diff --git a/configure b/configure
> >>>>> index 0c0472a..c48f1af 100755
> >>>>> --- a/configure
> >>>>> +++ b/configure
> >>>>> @@ -275,6 +275,7 @@ trace_backends="log"
> >>>>> trace_file="trace"
> >>>>> spice=""
> >>>>> rbd=""
> >>>>> +cephfs=""
> >>>>> smartcard=""
> >>>>> libusb=""
> >>>>> usb_redir=""
> >>>>> @@ -1019,6 +1020,10 @@ for opt do
> >>>>> ;;
> >>>>> --enable-rbd) rbd="yes"
> >>>>> ;;
> >>>>> + --disable-cephfs) cephfs="no"
> >>>>> + ;;
> >>>>> + --enable-cephfs) cephfs="yes"
> >>>>> + ;;
> >>>>> --disable-xfsctl) xfs="no"
> >>>>> ;;
> >>>>> --enable-xfsctl) xfs="yes"
> >>>>> @@ -1345,6 +1350,7 @@ disabled with --disable-FEATURE, default is
> >>>>> enabled if available:
> >>>>> vhost-net vhost-net acceleration support
> >>>>> spice spice
> >>>>> rbd rados block device (rbd)
> >>>>> + cephfs Ceph File System
> >>>>> libiscsi iscsi support
> >>>>> libnfs nfs support
> >>>>> smartcard smartcard support (libcacard)
> >>>>> @@ -3087,6 +3093,28 @@ EOF
> >>>>> fi
> >>>>>
> >>>>> ##########################################
> >>>>> +# cephfs probe
> >>>>> +if test "$cephfs" != "no" ; then
> >>>>> + cat > $TMPC <<EOF
> >>>>> +#include <stdio.h>
> >>>>> +#include <cephfs/libcephfs.h>
> >>>>> +int main(void) {
> >>>>> + struct ceph_mount_info *cmount;
> >>>>> + ceph_create(&cmount, NULL);
> >>>>> + return 0;
> >>>>> +}
> >>>>> +EOF
> >>>>> + cephfs_libs="-lcephfs"
> >>>>> + if compile_prog "" "$cephfs_libs" ; then
> >>>>> + cephfs=yes
> >>>>> + else
> >>>>> + if test "$cephfs" = "yes" ; then
> >>>>> + feature_not_found "cephfs" "Install libcephfs/ceph devel"
> >>>>> + fi
> >>>>> + cephfs=no
> >>>>> + fi
> >>>>> +fi
> >>>>> +##########################################
> >>>>> # libssh2 probe
> >>>>> min_libssh2_version=1.2.8
> >>>>> if test "$libssh2" != "no" ; then
> >>>>> @@ -4760,6 +4788,7 @@ else
> >>>>> echo "spice support $spice"
> >>>>> fi
> >>>>> echo "rbd support $rbd"
> >>>>> +echo "cephfs support $cephfs"
> >>>>> echo "xfsctl support $xfs"
> >>>>> echo "smartcard support $smartcard"
> >>>>> echo "libusb $libusb"
> >>>>> @@ -5224,6 +5253,10 @@ if test "$rbd" = "yes" ; then
> >>>>> echo "RBD_CFLAGS=$rbd_cflags" >> $config_host_mak
> >>>>> echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
> >>>>> fi
> >>>>> +if test "$cephfs" = "yes" ; then
> >>>>> + echo "CONFIG_CEPHFS=m" >> $config_host_mak
> >>>>> + echo "CEPHFS_LIBS=$cephfs_libs" >> $config_host_mak
> >>>>> +fi
> >>>>>
> >>>>> echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
> >>>>> if test "$coroutine_pool" = "yes" ; then
> >>>>> diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c
> >>>>> index bf7f0b0..7f07a2a 100644
> >>>>> --- a/fsdev/qemu-fsdev.c
> >>>>> +++ b/fsdev/qemu-fsdev.c
> >>>>> @@ -27,6 +27,7 @@ static FsDriverTable FsDrivers[] = {
> >>>>> #endif
> >>>>> { .name = "synth", .ops = &synth_ops},
> >>>>> { .name = "proxy", .ops = &proxy_ops},
> >>>>> + { .name = "cephfs", .ops = &cephfs_ops},
> >>>>> };
> >>>>>
> >>>>> int qemu_fsdev_add(QemuOpts *opts)
> >>>>> diff --git a/fsdev/qemu-fsdev.h b/fsdev/qemu-fsdev.h
> >>>>> index 9fa45bf..86a17b8 100644
> >>>>> --- a/fsdev/qemu-fsdev.h
> >>>>> +++ b/fsdev/qemu-fsdev.h
> >>>>> @@ -22,7 +22,7 @@
> >>>>> * fstype | ops
> >>>>> * -----------------
> >>>>> * local | local_ops
> >>>>> - * . |
> >>>>> + * cephfs| cephfs_ops
> >>>>> * . |
> >>>>> * . |
> >>>>> * . |
> >>>>> @@ -45,4 +45,5 @@ extern FileOperations local_ops;
> >>>>> extern FileOperations handle_ops;
> >>>>> extern FileOperations synth_ops;
> >>>>> extern FileOperations proxy_ops;
> >>>>> +extern FileOperations cephfs_ops;
> >>>>> #endif
> >>>>> diff --git a/hw/9pfs/9p-cephfs.c b/hw/9pfs/9p-cephfs.c
> >>>>> new file mode 100644
> >>>>> index 0000000..e2d659d
> >>>>> --- /dev/null
> >>>>> +++ b/hw/9pfs/9p-cephfs.c
> >>>>> @@ -0,0 +1,836 @@
> >>>>> +/*
> >>>>> + * 9p cephfs callback
> >>>>> + *
> >>>>> + * Copyright UnitedStack, Corp. 2016
> >>>>> + *
> >>>>> + * Authors:
> >>>>> + * Jevon Qiao <address@hidden>
> >>>>> + *
> >>>>> + * 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 "qemu/iov.h"
> >>>>> +#include "9p.h"
> >>>>> +#include "9p-xattr.h"
> >>>>> +#include "trace.h"
> >>>>> +#include <cephfs/libcephfs.h>
> >>>>> +#include "fsdev/qemu-fsdev.h" /* cephfs_ops */
> >>>>> +#include <arpa/inet.h>
> >>>>> +#include <pwd.h>
> >>>>> +#include <grp.h>
> >>>>> +#include <sys/socket.h>
> >>>>> +#include <sys/un.h>
> >>>>> +#include "qemu/xattr.h"
> >>>>> +#include "qemu/error-report.h"
> >>>>> +#include <libgen.h>
> >>>>> +#include <unistd.h>
> >>>>> +#include <linux/fs.h>
> >>>>> +#ifdef CONFIG_LINUX_MAGIC_H
> >>>>> +#include <linux/magic.h>
> >>>>> +#endif
> >>>>> +#include <sys/ioctl.h>
> >>>>> +
> >>>>> +#define CEPH_VER_LEN 32
> >>>>> +#define MON_NAME_LEN 32
> >>>>> +#define MON_SECRET_LEN 64
> >>>>> +
> >>>>> +#ifndef LIBCEPHFS_VERSION
> >>>>> +#define LIBCEPHFS_VERSION(maj, min, extra) ((maj << 16) + (min <<
> >>>>> 8) + extra)
> >>>>> +#define LIBCEPHFS_VERSION_CODE LIBCEPHFS_VERSION(0, 0, 0)
> >>>>> +#endif
> >>>>> +
> >>>>> +#if defined(LIBCEPHFS_VERSION) && LIBCEPHFS_VERSION_CODE >= \
> >>>>> +LIBCEPHFS_VERSION(10, 0, 2)
> >>>>> +#define HAVE_CEPH_READV 1
> >>>>> +#endif
> >>>>> +
> >>>>> +struct cephfs_data {
> >>>>> + int major, minor, patch;
> >>>>> + char ceph_version[CEPH_VER_LEN];
> >>>>> + struct ceph_mount_info *cmount;
> >>>>> +};
> >>>>> +
> >>>>> +static int cephfs_update_file_cred(struct ceph_mount_info *cmount,
> >>>>> + const char *name, FsCred *credp)
> >>>>> +{
> >>>>> + int fd, ret;
> >>>>> + fd = ceph_open(cmount, name, O_NONBLOCK | O_NOFOLLOW,
> >>>>> credp->fc_mode);
> >>>>> + if (fd < 0) {
> >>>>> + return fd;
> >>>>> + }
> >>>>> + ret = ceph_fchown(cmount, fd, credp->fc_uid, credp->fc_gid);
> >>>>> + if (ret < 0) {
> >>>>> + goto err_out;
> >>>>> + }
> >>>>> + ret = ceph_fchmod(cmount, fd, credp->fc_mode & 07777);
> >>>>> +err_out:
> >>>>> + close(fd);
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_lstat(FsContext *fs_ctx, V9fsPath *fs_path,
> >>>>> + struct stat *stbuf)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + char *path = fs_path->data;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + ret = ceph_lstat(cfsdata->cmount, path, stbuf);
> >>>>> + trace_cephfs_lstat_return(path, stbuf->st_mode, stbuf->st_uid,
> >>>>> + stbuf->st_gid, stbuf->st_size, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return 0;
> >>>>> +}
> >>>>> +
> >>>>> +static ssize_t cephfs_readlink(FsContext *fs_ctx, V9fsPath *fs_path,
> >>>>> + char *buf, size_t bufsz)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + char *path = fs_path->data;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + ret = ceph_readlink(cfsdata->cmount, path, buf, bufsz);
> >>>>> + trace_cephfs_readlink_return(path, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_close(FsContext *ctx, V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_close(cfsdata->cmount, fs->fd);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return 0;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_closedir(FsContext *ctx, V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_closedir(cfsdata->cmount, (struct ceph_dir_result
> >>>>> *)fs->dir);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return 0;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_open(FsContext *ctx, V9fsPath *fs_path,
> >>>>> + int flags, V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_open(cfsdata->cmount, fs_path->data, flags, 0777);
> >>>>> + trace_cephfs_open_return(fs_path->data, flags, 0777, fs->fd);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + fs->fd = ret;
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_opendir(FsContext *ctx,
> >>>>> + V9fsPath *fs_path, V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct ceph_dir_result *result;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> + char *path = fs_path->data;
> >>>>> +
> >>>>> + ret = ceph_opendir(cfsdata->cmount, path, &result);
> >>>>> + trace_cephfs_opendir_return(path, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + error_report("failed to open %s, %s", path,
> >>>>> strerror(errno));
> >>>>> + return -1;
> >>>>> + }
> >>>>> + fs->dir = (DIR *)result;
> >>>>> + return 0;
> >>>>> +}
> >>>>> +
> >>>>> +static void cephfs_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + trace_cephfs_rewinddir(fs->dir);
> >>>>> + ceph_rewinddir(cfsdata->cmount, (struct ceph_dir_result
> >>>>> *)fs->dir);
> >>>>> +}
> >>>>> +
> >>>>> +static off_t cephfs_telldir(FsContext *ctx, V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + off_t ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + trace_cephfs_telldir(fs->dir);
> >>>>> + ret = ceph_telldir(cfsdata->cmount, (struct ceph_dir_result
> >>>>> *)fs->dir);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
> >>>>> + struct dirent *entry,
> >>>>> + struct dirent **result)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_readdir_r(cfsdata->cmount, (struct ceph_dir_result
> >>>>> *)fs->dir,
> >>>>> + entry);
> >>>>> + if (ret > 0) {
> >>>>> + *result = entry;
> >>>>> + return 0;
> >>>>> + } else if (ret == 0) {
> >>>>> + *result = NULL;
> >>>>> + return 0;
> >>>>> + }
> >>>>> + errno = -ret;
> >>>>> + return -ret;
> >>>>> +}
> >>>>> +
> >>>>> +static void cephfs_seekdir(FsContext *ctx, V9fsFidOpenState *fs,
> >>>>> off_t off)
> >>>>> +{
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + trace_cephfs_seekdir(fs->dir, off);
> >>>>> + ceph_seekdir(cfsdata->cmount, (struct ceph_dir_result
> >>>>> *)fs->dir, off);
> >>>>> +}
> >>>>> +
> >>>>> +#ifndef HAVE_CEPH_READV
> >>>>> +static ssize_t ceph_preadv(struct ceph_mount_info *cmount, int fd,
> >>>>> + const struct iovec *iov, int iov_cnt,
> >>>>> + off_t offset)
> >>>>> +{
> >>>>> + ssize_t ret;
> >>>>> + size_t i;
> >>>>> + size_t len, tmp;
> >>>>> + void *buf;
> >>>>> + size_t bufoffset = 0;
> >>>>> +
> >>>>> + len = iov_size(iov, iov_cnt);
> >>>>> + buf = g_new0(uint8_t, len);
> >>>>> + ret = ceph_read(cmount, fd, buf, len, offset);
> >>>>> + if (ret < 0) {
> >>>>> + return ret;
> >>>>> + } else {
> >>>>> + tmp = ret;
> >>>>> + for (i = 0; (i < iov_cnt && tmp > 0); i++) {
> >>>>> + if (tmp < iov[i].iov_len) {
> >>>>> + memcpy(iov[i].iov_base, (buf + bufoffset), tmp);
> >>>>> + } else {
> >>>>> + memcpy(iov[i].iov_base, (buf + bufoffset),
> >>>>> iov[i].iov_len);
> >>>>> + bufoffset += iov[i].iov_len;
> >>>>> + }
> >>>>> + tmp -= iov[i].iov_len;
> >>>>> + }
> >>>>> + }
> >>>>> +
> >>>>> + free(buf);
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static ssize_t ceph_pwritev(struct ceph_mount_info *cmount, int fd,
> >>>>> + const struct iovec *iov, int iov_cnt,
> >>>>> + off_t offset)
> >>>>> +{
> >>>>> + ssize_t ret;
> >>>>> + size_t i;
> >>>>> + size_t len;
> >>>>> + void *buf;
> >>>>> + size_t bufoffset = 0;
> >>>>> +
> >>>>> + len = iov_size(iov, iov_cnt);
> >>>>> + buf = g_new0(uint8_t, len);
> >>>>> + for (i = 0; i < iov_cnt; i++) {
> >>>>> + memcpy((buf + bufoffset), iov[i].iov_base, iov[i].iov_len);
> >>>>> + bufoffset += iov[i].iov_len;
> >>>>> + }
> >>>>> + ret = ceph_write(cmount, fd, buf, len, offset);
> >>>>> +
> >>>>> + free(buf);
> >>>>> + return ret;
> >>>>> +}
> >>>>> +#endif
> >>>>> +
> >>>>> +static ssize_t cephfs_preadv(FsContext *ctx, V9fsFidOpenState *fs,
> >>>>> + const struct iovec *iov,
> >>>>> + int iovcnt, off_t offset)
> >>>>> +{
> >>>>> + ssize_t ret = 0;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + trace_cephfs_preadv(iovcnt, iov_size(iov, iovcnt));
> >>>>> + if (iovcnt < 0) {
> >>>>> + errno = EINVAL;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + ret = ceph_preadv(cfsdata->cmount, fs->fd, iov, iovcnt, offset);
> >>>>> + trace_cephfs_preadv_return(iovcnt, iov_size(iov, iovcnt), ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static ssize_t cephfs_pwritev(FsContext *ctx, V9fsFidOpenState *fs,
> >>>>> + const struct iovec *iov,
> >>>>> + int iovcnt, off_t offset)
> >>>>> +{
> >>>>> + ssize_t ret = 0;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + trace_cephfs_pwritev(iovcnt, iov_size(iov, iovcnt), offset);
> >>>>> + if (iovcnt < 0) {
> >>>>> + errno = EINVAL;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + ret = ceph_pwritev(cfsdata->cmount, fs->fd, iov, iovcnt,
> >>>>> offset);
> >>>>> + trace_cephfs_pwritev_return(iovcnt, iov_size(iov, iovcnt),
> >>>>> offset, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> +
> >>>>> +#ifdef CONFIG_SYNC_FILE_RANGE
> >>>>> + if (ret > 0 && ctx->export_flags & V9FS_IMMEDIATE_WRITEOUT) {
> >>>>> + /*
> >>>>> + * Initiate a writeback. This is not a data integrity sync.
> >>>>> + * We want to ensure that we don't leave dirty pages in
> >>>>> the cache
> >>>>> + * after write when writeout=immediate is sepcified.
> >>>>> + */
> >>>>> + sync_file_range(fs->fd, offset, ret,
> >>>>> + SYNC_FILE_RANGE_WAIT_BEFORE |
> >>>>> SYNC_FILE_RANGE_WRITE);
> >>>>> + }
> >>>>> +#endif
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_chmod(FsContext *fs_ctx, V9fsPath *fs_path,
> >>>>> FsCred *credp)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + ret = ceph_chmod(cfsdata->cmount, fs_path->data,
> >>>>> credp->fc_mode);
> >>>>> + trace_cephfs_chmod_return(fs_path->data, credp->fc_mode, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_mknod(FsContext *fs_ctx, V9fsPath *dir_path,
> >>>>> + const char *name, FsCred *credp)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + V9fsString fullname;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + v9fs_string_init(&fullname);
> >>>>> + v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
> >>>>> + ret = ceph_mknod(cfsdata->cmount, fullname.data, credp->fc_mode,
> >>>>> + credp->fc_rdev);
> >>>>> + trace_cephfs_mknod_return(fullname.data, credp->fc_mode,
> >>>>> + credp->fc_rdev, ret);
> >>>>> + v9fs_string_free(&fullname);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_mkdir(FsContext *fs_ctx, V9fsPath *dir_path,
> >>>>> + const char *name, FsCred *credp)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + V9fsString fullname;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + v9fs_string_init(&fullname);
> >>>>> + v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
> >>>>> + ret = ceph_mkdir(cfsdata->cmount, fullname.data,
> >>>>> credp->fc_mode);
> >>>>> + trace_cephfs_mkdir_return(fullname.data, credp->fc_mode, ret);
> >>>>> + v9fs_string_free(&fullname);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_fstat(FsContext *fs_ctx, int fid_type,
> >>>>> + V9fsFidOpenState *fs, struct stat *stbuf)
> >>>>> +{
> >>>>> + int fd;
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + if (fid_type == P9_FID_DIR) {
> >>>>> + fd = dirfd(fs->dir);
> >>>>> + } else {
> >>>>> + fd = fs->fd;
> >>>>> + }
> >>>>> + ret = ceph_fstat(cfsdata->cmount, fd, stbuf);
> >>>>> + trace_cephfs_fstat_return(fid_type, fd, stbuf->st_uid,
> >>>>> stbuf->st_gid,
> >>>>> + stbuf->st_size, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_open2(FsContext *fs_ctx, V9fsPath *dir_path,
> >>>>> const char *name,
> >>>>> + int flags, FsCred *credp,
> >>>>> V9fsFidOpenState *fs)
> >>>>> +{
> >>>>> + int fd, ret;
> >>>>> + V9fsString fullname;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + v9fs_string_init(&fullname);
> >>>>> + v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
> >>>>> + fd = ceph_open(cfsdata->cmount, fullname.data, flags,
> >>>>> credp->fc_mode);
> >>>>> + trace_cephfs_open2_return(fullname.data, flags, credp->fc_mode);
> >>>>> + v9fs_string_free(&fullname);
> >>>>> + if (fd >= 0) {
> >>>>> + /* After creating the file, need to set the cred */
> >>>>> + ret = cephfs_update_file_cred(cfsdata->cmount, name, credp);
> >>>>> + if (ret < 0) {
> >>>>> + ceph_close(cfsdata->cmount, fd);
> >>>>> + errno = -ret;
> >>>>> + fd = -1;
> >>>>> + } else {
> >>>>> + fs->fd = fd;
> >>>>> + }
> >>>>> + } else {
> >>>>> + errno = -fd;
> >>>>> + return -1;
> >>>>> + }
> >>>>> +
> >>>>> + return fd;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_symlink(FsContext *fs_ctx, const char *oldpath,
> >>>>> + V9fsPath *dir_path, const char *name,
> >>>>> FsCred *credp)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + V9fsString fullname;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + v9fs_string_init(&fullname);
> >>>>> + v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
> >>>>> + ret = ceph_symlink(cfsdata->cmount, oldpath, fullname.data);
> >>>>> + trace_cephfs_symlink_return(oldpath, fullname.data, ret);
> >>>>> + v9fs_string_free(&fullname);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_link(FsContext *ctx, V9fsPath *oldpath,
> >>>>> + V9fsPath *dirpath, const char *name)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + V9fsString newpath;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + v9fs_string_init(&newpath);
> >>>>> + v9fs_string_sprintf(&newpath, "%s/%s", dirpath->data, name);
> >>>>> + ret = ceph_link(cfsdata->cmount, oldpath->data, newpath.data);
> >>>>> + trace_cephfs_link_return(oldpath->data, newpath.data, ret);
> >>>>> + v9fs_string_free(&newpath);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_truncate(FsContext *ctx, V9fsPath *fs_path,
> >>>>> off_t size)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_truncate(cfsdata->cmount, fs_path->data, size);
> >>>>> + trace_cephfs_truncate_return(fs_path->data, size, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_rename(FsContext *ctx, const char *oldpath,
> >>>>> + const char *newpath)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_rename(cfsdata->cmount, oldpath, newpath);
> >>>>> + trace_cephfs_rename_return(oldpath, newpath, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_chown(FsContext *fs_ctx, V9fsPath *fs_path,
> >>>>> FsCred *credp)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = fs_ctx->private;
> >>>>> +
> >>>>> + ret = ceph_chown(cfsdata->cmount, fs_path->data, credp->fc_uid,
> >>>>> + credp->fc_gid);
> >>>>> + trace_cephfs_chown_return(fs_path->data, credp->fc_uid,
> >>>>> credp->fc_gid, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_utimensat(FsContext *ctx, V9fsPath *fs_path,
> >>>>> + const struct timespec *buf)
> >>>>> +{
> >>>>> + int ret;
> >>>>> +
> >>>>> +#ifdef CONFIG_UTIMENSAT
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_utime(cfsdata->cmount, fs_path->data, (struct
> >>>>> utimbuf *)buf);
> >>>>> + trace_cephfs_utimensat_return(fs_path->data, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> +#else
> >>>>> + ret = -1;
> >>>>> + errno = ENOSYS;
> >>>>> +#endif
> >>>>> +
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_remove(FsContext *ctx, const char *path)
> >>>>> +{
> >>>>> + errno = EOPNOTSUPP;
> >>>>> + return -1;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_fsync(FsContext *ctx, int fid_type,
> >>>>> + V9fsFidOpenState *fs, int datasync)
> >>>>> +{
> >>>>> + int ret, fd;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + if (fid_type == P9_FID_DIR) {
> >>>>> + fd = dirfd(fs->dir);
> >>>>> + } else {
> >>>>> + fd = fs->fd;
> >>>>> + }
> >>>>> + ret = ceph_fsync(cfsdata->cmount, fd, datasync);
> >>>>> + trace_cephfs_fsync_return(fd, datasync, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_statfs(FsContext *ctx, V9fsPath *fs_path,
> >>>>> + struct statfs *stbuf)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + char *path = fs_path->data;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_statfs(cfsdata->cmount, path, (struct statvfs
> >>>>> *)stbuf);
> >>>>> + if (ret < 0) {
> >>>>> + error_report("cephfs_statfs failed for %s, %s", path,
> >>>>> strerror(errno));
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +/*
> >>>>> + * Get the extended attribute of normal file, if the path refer
> >>>>> to a symbolic
> >>>>> + * link, just return the extended attributes of the syslink
> >>>>> rather than the
> >>>>> + * attributes of the link itself.
> >>>>> + */
> >>>>> +static ssize_t cephfs_lgetxattr(FsContext *ctx, V9fsPath *fs_path,
> >>>>> + const char *name, void *value,
> >>>>> size_t size)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + char *path = fs_path->data;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_lgetxattr(cfsdata->cmount, path, name, value, size);
> >>>>> + trace_cephfs_lgetxattr_return(path, name, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static ssize_t cephfs_llistxattr(FsContext *ctx, V9fsPath *fs_path,
> >>>>> + void *value, size_t size)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_llistxattr(cfsdata->cmount, fs_path->data, value,
> >>>>> size);
> >>>>> + trace_cephfs_llistxattr_return(fs_path->data, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_lsetxattr(FsContext *ctx, V9fsPath *fs_path,
> >>>>> const char *name,
> >>>>> + void *value, size_t size, int flags)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_lsetxattr(cfsdata->cmount, fs_path->data, name,
> >>>>> value, size,
> >>>>> + flags);
> >>>>> + trace_cephfs_lsetxattr_return(fs_path->data, name, flags, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_lremovexattr(FsContext *ctx, V9fsPath *fs_path,
> >>>>> + const char *name)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_lremovexattr(cfsdata->cmount, fs_path->data, name);
> >>>>> + trace_cephfs_lremovexattr_return(fs_path->data, name, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_name_to_path(FsContext *ctx, V9fsPath *dir_path,
> >>>>> + const char *name, V9fsPath *target)
> >>>>> +{
> >>>>> + if (dir_path) {
> >>>>> + v9fs_string_sprintf((V9fsString *)target, "%s/%s",
> >>>>> + dir_path->data, name);
> >>>>> + } else {
> >>>>> + /* if the path does not start from '/' */
> >>>>> + v9fs_string_sprintf((V9fsString *)target, "%s", name);
> >>>>> + }
> >>>>> +
> >>>>> + /* Bump the size for including terminating NULL */
> >>>>> + target->size++;
> >>>>> + return 0;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_renameat(FsContext *ctx, V9fsPath *olddir,
> >>>>> + const char *old_name, V9fsPath *newdir,
> >>>>> + const char *new_name)
> >>>>> +{
> >>>>> + int ret = -1;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + ret = ceph_rename(cfsdata->cmount, old_name, new_name);
> >>>>> + trace_cephfs_renameat_return(old_name, new_name, ret);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_unlinkat(FsContext *ctx, V9fsPath *dir,
> >>>>> + const char *name, int flags)
> >>>>> +{
> >>>>> + int ret = 0;
> >>>>> + char *path = dir->data;
> >>>>> + struct stat fstat;
> >>>>> + V9fsString fullname;
> >>>>> + struct cephfs_data *cfsdata = ctx->private;
> >>>>> +
> >>>>> + v9fs_string_init(&fullname);
> >>>>> + v9fs_string_sprintf(&fullname, "%s/%s", dir->data, name);
> >>>>> + path = fullname.data;
> >>>>> + /* determine which kind of file is being destroyed */
> >>>>> + ret = ceph_lstat(cfsdata->cmount, path, &fstat);
> >>>>> + if (!ret) {
> >>>>> + switch (fstat.st_mode & S_IFMT) {
> >>>>> + case S_IFDIR:
> >>>>> + ret = ceph_rmdir(cfsdata->cmount, path);
> >>>>> + break;
> >>>>> +
> >>>>> + case S_IFBLK:
> >>>>> + case S_IFCHR:
> >>>>> + case S_IFIFO:
> >>>>> + case S_IFLNK:
> >>>>> + case S_IFREG:
> >>>>> + case S_IFSOCK:
> >>>>> + ret = ceph_unlink(cfsdata->cmount, path);
> >>>>> + break;
> >>>>> +
> >>>>> + default:
> >>>>> + error_report("ceph_lstat unknown stmode %s, %s", path,
> >>>>> + strerror(errno));
> >>>>> + break;
> >>>>> + }
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + ret = -1;
> >>>>> + }
> >>>>> + } else {
> >>>>> + errno = -ret;
> >>>>> + ret = -1;
> >>>>> + }
> >>>>> + trace_cephfs_unlinkat_return(path, fstat.st_mode, ret);
> >>>>> +
> >>>>> + v9fs_string_free(&fullname);
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +/*
> >>>>> + * Do two things in the init function:
> >>>>> + * 1) Create a mount handle used by all cephfs interfaces.
> >>>>> + * 2) Invoke ceph_mount() to initialize a link between the client
> >>>>> and
> >>>>> + * ceph monitor
> >>>>> + */
> >>>>> +static int cephfs_init(FsContext *ctx)
> >>>>> +{
> >>>>> + int ret;
> >>>>> + const char *ver = NULL;
> >>>>> + struct cephfs_data *data = g_malloc(sizeof(struct cephfs_data));
> >>>>> +
> >>>>> + if (data == NULL) {
> >>>>> + errno = ENOMEM;
> >>>>> + return -1;
> >>>>> + }
> >>>>> + trace_cephfs_init(ctx->fs_root);
> >>>>> + memset(data, 0, sizeof(struct cephfs_data));
> >>>>> + ret = ceph_create(&data->cmount, NULL);
> >>>>> + if (ret < 0) {
> >>>>> + errno = -ret;
> >>>>> + error_report("ceph_create failed %s", strerror(errno));
> >>>>> + goto err_out;
> >>>>> + }
> >>>>> +
> >>>>> + ret = ceph_conf_read_file(data->cmount, NULL);
> >>>>> + if (ret) {
> >>>>> + errno = -ret;
> >>>>> + error_report("ceph_conf_read_file failed %s",
> >>>>> strerror(errno));
> >>>>> + goto err_out;
> >>>>> + }
> >>>>> +
> >>>>> + ret = ceph_mount(data->cmount, ctx->fs_root);
> >>>>> + if (ret) {
> >>>>> + errno = -ret;
> >>>>> + error_report("ceph_mount failed %s", strerror(errno));
> >>>>> + goto err_out;
> >>>>> + } else {
> >>>>> + ctx->private = data;
> >>>>> + /* CephFS does not support FS_IOC_GETVERSION */
> >>>>> + ctx->exops.get_st_gen = NULL;
> >>>>> + goto out;
> >>>>> + }
> >>>>> +
> >>>>> + ver = ceph_version(&data->major, &data->minor, &data->patch);
> >>>>> + memcpy(data->ceph_version, ver, strlen(ver) + 1);
> >>>>> +
> >>>>> +err_out:
> >>>>> + g_free(data);
> >>>>> +out:
> >>>>> + return ret;
> >>>>> +}
> >>>>> +
> >>>>> +static int cephfs_parse_opts(QemuOpts *opts, struct FsDriverEntry
> >>>>> *fse)
> >>>>> +{
> >>>>> + const char *sec_model = qemu_opt_get(opts, "security_model");
> >>>>> + const char *path = qemu_opt_get(opts, "path");
> >>>>> +
> >>>>> + if (!sec_model) {
> >>>>> + error_report("Invalid argument security_model specified "
> >>>>> + "with cephfs fsdriver");
> >>>>> + return -1;
> >>>>> + }
> >>>>> +
> >>>>> + if (!path) {
> >>>>> + error_report("fsdev: No path specified.");
> >>>>> + return -1;
> >>>>> + }
> >>>>> +
> >>>>> + fse->path = g_strdup(path);
> >>>>> + return 0;
> >>>>> +}
> >>>>> +
> >>>>> +FileOperations cephfs_ops = {
> >>>>> + .parse_opts = cephfs_parse_opts,
> >>>>> + .init = cephfs_init,
> >>>>> + .lstat = cephfs_lstat,
> >>>>> + .readlink = cephfs_readlink,
> >>>>> + .close = cephfs_close,
> >>>>> + .closedir = cephfs_closedir,
> >>>>> + .open = cephfs_open,
> >>>>> + .opendir = cephfs_opendir,
> >>>>> + .rewinddir = cephfs_rewinddir,
> >>>>> + .telldir = cephfs_telldir,
> >>>>> + .readdir_r = cephfs_readdir_r,
> >>>>> + .seekdir = cephfs_seekdir,
> >>>>> + .preadv = cephfs_preadv,
> >>>>> + .pwritev = cephfs_pwritev,
> >>>>> + .chmod = cephfs_chmod,
> >>>>> + .mknod = cephfs_mknod,
> >>>>> + .mkdir = cephfs_mkdir,
> >>>>> + .fstat = cephfs_fstat,
> >>>>> + .open2 = cephfs_open2,
> >>>>> + .symlink = cephfs_symlink,
> >>>>> + .link = cephfs_link,
> >>>>> + .truncate = cephfs_truncate,
> >>>>> + .rename = cephfs_rename,
> >>>>> + .chown = cephfs_chown,
> >>>>> + .utimensat = cephfs_utimensat,
> >>>>> + .remove = cephfs_remove,
> >>>>> + .fsync = cephfs_fsync,
> >>>>> + .statfs = cephfs_statfs,
> >>>>> + .lgetxattr = cephfs_lgetxattr,
> >>>>> + .llistxattr = cephfs_llistxattr,
> >>>>> + .lsetxattr = cephfs_lsetxattr,
> >>>>> + .lremovexattr = cephfs_lremovexattr,
> >>>>> + .name_to_path = cephfs_name_to_path,
> >>>>> + .renameat = cephfs_renameat,
> >>>>> + .unlinkat = cephfs_unlinkat,
> >>>>> +};
> >>>>> diff --git a/hw/9pfs/Makefile.objs b/hw/9pfs/Makefile.objs
> >>>>> index da0ae0c..a77a6f4 100644
> >>>>> --- a/hw/9pfs/Makefile.objs
> >>>>> +++ b/hw/9pfs/Makefile.objs
> >>>>> @@ -5,5 +5,8 @@ common-obj-y += coth.o cofs.o codir.o cofile.o
> >>>>> common-obj-y += coxattr.o 9p-synth.o
> >>>>> common-obj-$(CONFIG_OPEN_BY_HANDLE) += 9p-handle.o
> >>>>> common-obj-y += 9p-proxy.o
> >>>>> +common-obj-y += 9p-cephfs.o
> >>>>>
> >>>>> obj-y += virtio-9p-device.o
> >>>>> +
> >>>>> +9p-cephfs.o-libs := $(CEPHFS_LIBS)
> >>>>> diff --git a/scripts/analyse-9p-simpletrace.py
> >>>>> b/scripts/analyse-9p-simpletrace.py
> >>>>> deleted file mode 100755
> >>>>> index 3c3dee4..0000000
> >>>>> --- a/scripts/analyse-9p-simpletrace.py
> >>>>> +++ /dev/null
> >>>>> @@ -1,213 +0,0 @@
> >>>>> -#!/usr/bin/env python
> >>>>> -# Pretty print 9p simpletrace log
> >>>>> -# Usage: ./analyse-9p-simpletrace <trace-events> <trace-pid>
> >>>>> -#
> >>>>> -# Author: Harsh Prateek Bora
> >>>>> -import os
> >>>>> -import simpletrace
> >>>>> -
> >>>>> -symbol_9p = {
> >>>>> - 6 : 'TLERROR',
> >>>>> - 7 : 'RLERROR',
> >>>>> - 8 : 'TSTATFS',
> >>>>> - 9 : 'RSTATFS',
> >>>>> - 12 : 'TLOPEN',
> >>>>> - 13 : 'RLOPEN',
> >>>>> - 14 : 'TLCREATE',
> >>>>> - 15 : 'RLCREATE',
> >>>>> - 16 : 'TSYMLINK',
> >>>>> - 17 : 'RSYMLINK',
> >>>>> - 18 : 'TMKNOD',
> >>>>> - 19 : 'RMKNOD',
> >>>>> - 20 : 'TRENAME',
> >>>>> - 21 : 'RRENAME',
> >>>>> - 22 : 'TREADLINK',
> >>>>> - 23 : 'RREADLINK',
> >>>>> - 24 : 'TGETATTR',
> >>>>> - 25 : 'RGETATTR',
> >>>>> - 26 : 'TSETATTR',
> >>>>> - 27 : 'RSETATTR',
> >>>>> - 30 : 'TXATTRWALK',
> >>>>> - 31 : 'RXATTRWALK',
> >>>>> - 32 : 'TXATTRCREATE',
> >>>>> - 33 : 'RXATTRCREATE',
> >>>>> - 40 : 'TREADDIR',
> >>>>> - 41 : 'RREADDIR',
> >>>>> - 50 : 'TFSYNC',
> >>>>> - 51 : 'RFSYNC',
> >>>>> - 52 : 'TLOCK',
> >>>>> - 53 : 'RLOCK',
> >>>>> - 54 : 'TGETLOCK',
> >>>>> - 55 : 'RGETLOCK',
> >>>>> - 70 : 'TLINK',
> >>>>> - 71 : 'RLINK',
> >>>>> - 72 : 'TMKDIR',
> >>>>> - 73 : 'RMKDIR',
> >>>>> - 74 : 'TRENAMEAT',
> >>>>> - 75 : 'RRENAMEAT',
> >>>>> - 76 : 'TUNLINKAT',
> >>>>> - 77 : 'RUNLINKAT',
> >>>>> - 100 : 'TVERSION',
> >>>>> - 101 : 'RVERSION',
> >>>>> - 102 : 'TAUTH',
> >>>>> - 103 : 'RAUTH',
> >>>>> - 104 : 'TATTACH',
> >>>>> - 105 : 'RATTACH',
> >>>>> - 106 : 'TERROR',
> >>>>> - 107 : 'RERROR',
> >>>>> - 108 : 'TFLUSH',
> >>>>> - 109 : 'RFLUSH',
> >>>>> - 110 : 'TWALK',
> >>>>> - 111 : 'RWALK',
> >>>>> - 112 : 'TOPEN',
> >>>>> - 113 : 'ROPEN',
> >>>>> - 114 : 'TCREATE',
> >>>>> - 115 : 'RCREATE',
> >>>>> - 116 : 'TREAD',
> >>>>> - 117 : 'RREAD',
> >>>>> - 118 : 'TWRITE',
> >>>>> - 119 : 'RWRITE',
> >>>>> - 120 : 'TCLUNK',
> >>>>> - 121 : 'RCLUNK',
> >>>>> - 122 : 'TREMOVE',
> >>>>> - 123 : 'RREMOVE',
> >>>>> - 124 : 'TSTAT',
> >>>>> - 125 : 'RSTAT',
> >>>>> - 126 : 'TWSTAT',
> >>>>> - 127 : 'RWSTAT'
> >>>>> -}
> >>>>> -
> >>>>> -class VirtFSRequestTracker(simpletrace.Analyzer):
> >>>>> - def begin(self):
> >>>>> - print "Pretty printing 9p simpletrace log ..."
> >>>>> -
> >>>>> - def v9fs_rerror(self, tag, id, err):
> >>>>> - print "RERROR (tag =", tag, ", id =",
> >>>>> symbol_9p[id], ", err = \"", os.strerror(err), "\")"
> >>>>> -
> >>>>> - def v9fs_version(self, tag, id, msize, version):
> >>>>> - print "TVERSION (tag =", tag, ", msize =", msize,
> >>>>> ", version =", version, ")"
> >>>>> -
> >>>>> - def v9fs_version_return(self, tag, id, msize, version):
> >>>>> - print "RVERSION (tag =", tag, ", msize =", msize,
> >>>>> ", version =", version, ")"
> >>>>> -
> >>>>> - def v9fs_attach(self, tag, id, fid, afid, uname, aname):
> >>>>> - print "TATTACH (tag =", tag, ", fid =", fid, ",
> >>>>> afid =", afid, ", uname =", uname, ", aname =", aname, ")"
> >>>>> -
> >>>>> - def v9fs_attach_return(self, tag, id, type, version, path):
> >>>>> - print "RATTACH (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "})"
> >>>>> -
> >>>>> - def v9fs_stat(self, tag, id, fid):
> >>>>> - print "TSTAT (tag =", tag, ", fid =", fid, ")"
> >>>>> -
> >>>>> - def v9fs_stat_return(self, tag, id, mode, atime, mtime,
> >>>>> length):
> >>>>> - print "RSTAT (tag =", tag, ", mode =", mode, ",
> >>>>> atime =", atime, ", mtime =", mtime, ", length =", length, ")"
> >>>>> -
> >>>>> - def v9fs_getattr(self, tag, id, fid, request_mask):
> >>>>> - print "TGETATTR (tag =", tag, ", fid =", fid, ",
> >>>>> request_mask =", hex(request_mask), ")"
> >>>>> -
> >>>>> - def v9fs_getattr_return(self, tag, id, result_mask, mode,
> >>>>> uid, gid):
> >>>>> - print "RGETATTR (tag =", tag, ", result_mask =",
> >>>>> hex(result_mask), ", mode =", oct(mode), ", uid =", uid, ", gid
> >>>>> =", gid, ")"
> >>>>> -
> >>>>> - def v9fs_walk(self, tag, id, fid, newfid, nwnames):
> >>>>> - print "TWALK (tag =", tag, ", fid =", fid, ",
> >>>>> newfid =", newfid, ", nwnames =", nwnames, ")"
> >>>>> -
> >>>>> - def v9fs_walk_return(self, tag, id, nwnames, qids):
> >>>>> - print "RWALK (tag =", tag, ", nwnames =",
> >>>>> nwnames, ", qids =", hex(qids), ")"
> >>>>> -
> >>>>> - def v9fs_open(self, tag, id, fid, mode):
> >>>>> - print "TOPEN (tag =", tag, ", fid =", fid, ",
> >>>>> mode =", oct(mode), ")"
> >>>>> -
> >>>>> - def v9fs_open_return(self, tag, id, type, version, path,
> >>>>> iounit):
> >>>>> - print "ROPEN (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, iounit =",
> >>>>> iounit, ")"
> >>>>> -
> >>>>> - def v9fs_lcreate(self, tag, id, dfid, flags, mode, gid):
> >>>>> - print "TLCREATE (tag =", tag, ", dfid =", dfid,
> >>>>> ", flags =", oct(flags), ", mode =", oct(mode), ", gid =", gid, ")"
> >>>>> -
> >>>>> - def v9fs_lcreate_return(self, tag, id, type, version,
> >>>>> path, iounit):
> >>>>> - print "RLCREATE (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, iounit =",
> >>>>> iounit, ")"
> >>>>> -
> >>>>> - def v9fs_fsync(self, tag, id, fid, datasync):
> >>>>> - print "TFSYNC (tag =", tag, ", fid =", fid, ",
> >>>>> datasync =", datasync, ")"
> >>>>> -
> >>>>> - def v9fs_clunk(self, tag, id, fid):
> >>>>> - print "TCLUNK (tag =", tag, ", fid =", fid, ")"
> >>>>> -
> >>>>> - def v9fs_read(self, tag, id, fid, off, max_count):
> >>>>> - print "TREAD (tag =", tag, ", fid =", fid, ", off
> >>>>> =", off, ", max_count =", max_count, ")"
> >>>>> -
> >>>>> - def v9fs_read_return(self, tag, id, count, err):
> >>>>> - print "RREAD (tag =", tag, ", count =", count, ",
> >>>>> err =", err, ")"
> >>>>> -
> >>>>> - def v9fs_readdir(self, tag, id, fid, offset, max_count):
> >>>>> - print "TREADDIR (tag =", tag, ", fid =", fid, ",
> >>>>> offset =", offset, ", max_count =", max_count, ")"
> >>>>> -
> >>>>> - def v9fs_readdir_return(self, tag, id, count, retval):
> >>>>> - print "RREADDIR (tag =", tag, ", count =", count,
> >>>>> ", retval =", retval, ")"
> >>>>> -
> >>>>> - def v9fs_write(self, tag, id, fid, off, count, cnt):
> >>>>> - print "TWRITE (tag =", tag, ", fid =", fid, ",
> >>>>> off =", off, ", count =", count, ", cnt =", cnt, ")"
> >>>>> -
> >>>>> - def v9fs_write_return(self, tag, id, total, err):
> >>>>> - print "RWRITE (tag =", tag, ", total =", total,
> >>>>> ", err =", err, ")"
> >>>>> -
> >>>>> - def v9fs_create(self, tag, id, fid, name, perm, mode):
> >>>>> - print "TCREATE (tag =", tag, ", fid =", fid, ",
> >>>>> perm =", oct(perm), ", name =", name, ", mode =", oct(mode), ")"
> >>>>> -
> >>>>> - def v9fs_create_return(self, tag, id, type, version,
> >>>>> path, iounit):
> >>>>> - print "RCREATE (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, iounit =",
> >>>>> iounit, ")"
> >>>>> -
> >>>>> - def v9fs_symlink(self, tag, id, fid, name, symname, gid):
> >>>>> - print "TSYMLINK (tag =", tag, ", fid =", fid, ",
> >>>>> name =", name, ", symname =", symname, ", gid =", gid, ")"
> >>>>> -
> >>>>> - def v9fs_symlink_return(self, tag, id, type, version, path):
> >>>>> - print "RSYMLINK (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "})"
> >>>>> -
> >>>>> - def v9fs_flush(self, tag, id, flush_tag):
> >>>>> - print "TFLUSH (tag =", tag, ", flush_tag =",
> >>>>> flush_tag, ")"
> >>>>> -
> >>>>> - def v9fs_link(self, tag, id, dfid, oldfid, name):
> >>>>> - print "TLINK (tag =", tag, ", dfid =", dfid, ",
> >>>>> oldfid =", oldfid, ", name =", name, ")"
> >>>>> -
> >>>>> - def v9fs_remove(self, tag, id, fid):
> >>>>> - print "TREMOVE (tag =", tag, ", fid =", fid, ")"
> >>>>> -
> >>>>> - def v9fs_wstat(self, tag, id, fid, mode, atime, mtime):
> >>>>> - print "TWSTAT (tag =", tag, ", fid =", fid, ",
> >>>>> mode =", oct(mode), ", atime =", atime, "mtime =", mtime, ")"
> >>>>> -
> >>>>> - def v9fs_mknod(self, tag, id, fid, mode, major, minor):
> >>>>> - print "TMKNOD (tag =", tag, ", fid =", fid, ",
> >>>>> mode =", oct(mode), ", major =", major, ", minor =", minor, ")"
> >>>>> -
> >>>>> - def v9fs_lock(self, tag, id, fid, type, start, length):
> >>>>> - print "TLOCK (tag =", tag, ", fid =", fid, "type
> >>>>> =", type, ", start =", start, ", length =", length, ")"
> >>>>> -
> >>>>> - def v9fs_lock_return(self, tag, id, status):
> >>>>> - print "RLOCK (tag =", tag, ", status =", status, ")"
> >>>>> -
> >>>>> - def v9fs_getlock(self, tag, id, fid, type, start, length):
> >>>>> - print "TGETLOCK (tag =", tag, ", fid =", fid,
> >>>>> "type =", type, ", start =", start, ", length =", length, ")"
> >>>>> -
> >>>>> - def v9fs_getlock_return(self, tag, id, type, start,
> >>>>> length, proc_id):
> >>>>> - print "RGETLOCK (tag =", tag, "type =", type, ",
> >>>>> start =", start, ", length =", length, ", proc_id =", proc_id, ")"
> >>>>> -
> >>>>> - def v9fs_mkdir(self, tag, id, fid, name, mode, gid):
> >>>>> - print "TMKDIR (tag =", tag, ", fid =", fid, ",
> >>>>> name =", name, ", mode =", mode, ", gid =", gid, ")"
> >>>>> -
> >>>>> - def v9fs_mkdir_return(self, tag, id, type, version, path,
> >>>>> err):
> >>>>> - print "RMKDIR (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, err =", err, ")"
> >>>>> -
> >>>>> - def v9fs_xattrwalk(self, tag, id, fid, newfid, name):
> >>>>> - print "TXATTRWALK (tag =", tag, ", fid =", fid,
> >>>>> ", newfid =", newfid, ", xattr name =", name, ")"
> >>>>> -
> >>>>> - def v9fs_xattrwalk_return(self, tag, id, size):
> >>>>> - print "RXATTRWALK (tag =", tag, ", xattrsize =",
> >>>>> size, ")"
> >>>>> -
> >>>>> - def v9fs_xattrcreate(self, tag, id, fid, name, size, flags):
> >>>>> - print "TXATTRCREATE (tag =", tag, ", fid =", fid,
> >>>>> ", name =", name, ", xattrsize =", size, ", flags =", flags, ")"
> >>>>> -
> >>>>> - def v9fs_readlink(self, tag, id, fid):
> >>>>> - print "TREADLINK (tag =", tag, ", fid =", fid, ")"
> >>>>> -
> >>>>> - def v9fs_readlink_return(self, tag, id, target):
> >>>>> - print "RREADLINK (tag =", tag, ", target =",
> >>>>> target, ")"
> >>>>> -
> >>>>> -simpletrace.run(VirtFSRequestTracker())
> >>>>> diff --git a/scripts/analyze-9p-simpletrace.py
> >>>>> b/scripts/analyze-9p-simpletrace.py
> >>>>> new file mode 100755
> >>>>> index 0000000..e9c6737
> >>>>> --- /dev/null
> >>>>> +++ b/scripts/analyze-9p-simpletrace.py
> >>>>> @@ -0,0 +1,306 @@
> >>>>> +#!/usr/bin/env python
> >>>>> +# Pretty print 9p simpletrace log
> >>>>> +# Usage: ./analyse-9p-simpletrace <trace-events> <trace-pid>
> >>>>> +#
> >>>>> +# Author: Harsh Prateek Bora
> >>>>> +import os
> >>>>> +import simpletrace
> >>>>> +
> >>>>> +symbol_9p = {
> >>>>> + 6 : 'TLERROR',
> >>>>> + 7 : 'RLERROR',
> >>>>> + 8 : 'TSTATFS',
> >>>>> + 9 : 'RSTATFS',
> >>>>> + 12 : 'TLOPEN',
> >>>>> + 13 : 'RLOPEN',
> >>>>> + 14 : 'TLCREATE',
> >>>>> + 15 : 'RLCREATE',
> >>>>> + 16 : 'TSYMLINK',
> >>>>> + 17 : 'RSYMLINK',
> >>>>> + 18 : 'TMKNOD',
> >>>>> + 19 : 'RMKNOD',
> >>>>> + 20 : 'TRENAME',
> >>>>> + 21 : 'RRENAME',
> >>>>> + 22 : 'TREADLINK',
> >>>>> + 23 : 'RREADLINK',
> >>>>> + 24 : 'TGETATTR',
> >>>>> + 25 : 'RGETATTR',
> >>>>> + 26 : 'TSETATTR',
> >>>>> + 27 : 'RSETATTR',
> >>>>> + 30 : 'TXATTRWALK',
> >>>>> + 31 : 'RXATTRWALK',
> >>>>> + 32 : 'TXATTRCREATE',
> >>>>> + 33 : 'RXATTRCREATE',
> >>>>> + 40 : 'TREADDIR',
> >>>>> + 41 : 'RREADDIR',
> >>>>> + 50 : 'TFSYNC',
> >>>>> + 51 : 'RFSYNC',
> >>>>> + 52 : 'TLOCK',
> >>>>> + 53 : 'RLOCK',
> >>>>> + 54 : 'TGETLOCK',
> >>>>> + 55 : 'RGETLOCK',
> >>>>> + 70 : 'TLINK',
> >>>>> + 71 : 'RLINK',
> >>>>> + 72 : 'TMKDIR',
> >>>>> + 73 : 'RMKDIR',
> >>>>> + 74 : 'TRENAMEAT',
> >>>>> + 75 : 'RRENAMEAT',
> >>>>> + 76 : 'TUNLINKAT',
> >>>>> + 77 : 'RUNLINKAT',
> >>>>> + 100 : 'TVERSION',
> >>>>> + 101 : 'RVERSION',
> >>>>> + 102 : 'TAUTH',
> >>>>> + 103 : 'RAUTH',
> >>>>> + 104 : 'TATTACH',
> >>>>> + 105 : 'RATTACH',
> >>>>> + 106 : 'TERROR',
> >>>>> + 107 : 'RERROR',
> >>>>> + 108 : 'TFLUSH',
> >>>>> + 109 : 'RFLUSH',
> >>>>> + 110 : 'TWALK',
> >>>>> + 111 : 'RWALK',
> >>>>> + 112 : 'TOPEN',
> >>>>> + 113 : 'ROPEN',
> >>>>> + 114 : 'TCREATE',
> >>>>> + 115 : 'RCREATE',
> >>>>> + 116 : 'TREAD',
> >>>>> + 117 : 'RREAD',
> >>>>> + 118 : 'TWRITE',
> >>>>> + 119 : 'RWRITE',
> >>>>> + 120 : 'TCLUNK',
> >>>>> + 121 : 'RCLUNK',
> >>>>> + 122 : 'TREMOVE',
> >>>>> + 123 : 'RREMOVE',
> >>>>> + 124 : 'TSTAT',
> >>>>> + 125 : 'RSTAT',
> >>>>> + 126 : 'TWSTAT',
> >>>>> + 127 : 'RWSTAT'
> >>>>> +}
> >>>>> +
> >>>>> +class VirtFSRequestTracker(simpletrace.Analyzer):
> >>>>> + def begin(self):
> >>>>> + print "Pretty printing 9p simpletrace log ..."
> >>>>> +
> >>>>> + def v9fs_rerror(self, tag, id, err):
> >>>>> + print "RERROR (tag =", tag, ", id =",
> >>>>> symbol_9p[id], ", err = \"", os.strerror(err), "\")"
> >>>>> +
> >>>>> + def v9fs_version(self, tag, id, msize, version):
> >>>>> + print "TVERSION (tag =", tag, ", msize =", msize,
> >>>>> ", version =", version, ")"
> >>>>> +
> >>>>> + def v9fs_version_return(self, tag, id, msize, version):
> >>>>> + print "RVERSION (tag =", tag, ", msize =", msize,
> >>>>> ", version =", version, ")"
> >>>>> +
> >>>>> + def v9fs_attach(self, tag, id, fid, afid, uname, aname):
> >>>>> + print "TATTACH (tag =", tag, ", fid =", fid, ",
> >>>>> afid =", afid, ", uname =", uname, ", aname =", aname, ")"
> >>>>> +
> >>>>> + def v9fs_attach_return(self, tag, id, type, version, path):
> >>>>> + print "RATTACH (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "})"
> >>>>> +
> >>>>> + def v9fs_stat(self, tag, id, fid):
> >>>>> + print "TSTAT (tag =", tag, ", fid =", fid, ")"
> >>>>> +
> >>>>> + def v9fs_stat_return(self, tag, id, mode, atime, mtime,
> >>>>> length):
> >>>>> + print "RSTAT (tag =", tag, ", mode =", mode, ",
> >>>>> atime =", atime, ", mtime =", mtime, ", length =", length, ")"
> >>>>> +
> >>>>> + def v9fs_getattr(self, tag, id, fid, request_mask):
> >>>>> + print "TGETATTR (tag =", tag, ", fid =", fid, ",
> >>>>> request_mask =", hex(request_mask), ")"
> >>>>> +
> >>>>> + def v9fs_getattr_return(self, tag, id, result_mask, mode,
> >>>>> uid, gid):
> >>>>> + print "RGETATTR (tag =", tag, ", result_mask =",
> >>>>> hex(result_mask), ", mode =", oct(mode), ", uid =", uid, ", gid
> >>>>> =", gid, ")"
> >>>>> +
> >>>>> + def v9fs_walk(self, tag, id, fid, newfid, nwnames):
> >>>>> + print "TWALK (tag =", tag, ", fid =", fid, ",
> >>>>> newfid =", newfid, ", nwnames =", nwnames, ")"
> >>>>> +
> >>>>> + def v9fs_walk_return(self, tag, id, nwnames, qids):
> >>>>> + print "RWALK (tag =", tag, ", nwnames =",
> >>>>> nwnames, ", qids =", hex(qids), ")"
> >>>>> +
> >>>>> + def v9fs_open(self, tag, id, fid, mode):
> >>>>> + print "TOPEN (tag =", tag, ", fid =", fid, ",
> >>>>> mode =", oct(mode), ")"
> >>>>> +
> >>>>> + def v9fs_open_return(self, tag, id, type, version, path,
> >>>>> iounit):
> >>>>> + print "ROPEN (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, iounit =",
> >>>>> iounit, ")"
> >>>>> +
> >>>>> + def v9fs_lcreate(self, tag, id, dfid, flags, mode, gid):
> >>>>> + print "TLCREATE (tag =", tag, ", dfid =", dfid,
> >>>>> ", flags =", oct(flags), ", mode =", oct(mode), ", gid =", gid, ")"
> >>>>> +
> >>>>> + def v9fs_lcreate_return(self, tag, id, type, version,
> >>>>> path, iounit):
> >>>>> + print "RLCREATE (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, iounit =",
> >>>>> iounit, ")"
> >>>>> +
> >>>>> + def v9fs_fsync(self, tag, id, fid, datasync):
> >>>>> + print "TFSYNC (tag =", tag, ", fid =", fid, ",
> >>>>> datasync =", datasync, ")"
> >>>>> +
> >>>>> + def v9fs_clunk(self, tag, id, fid):
> >>>>> + print "TCLUNK (tag =", tag, ", fid =", fid, ")"
> >>>>> +
> >>>>> + def v9fs_read(self, tag, id, fid, off, max_count):
> >>>>> + print "TREAD (tag =", tag, ", fid =", fid, ", off
> >>>>> =", off, ", max_count =", max_count, ")"
> >>>>> +
> >>>>> + def v9fs_read_return(self, tag, id, count, err):
> >>>>> + print "RREAD (tag =", tag, ", count =", count, ",
> >>>>> err =", err, ")"
> >>>>> +
> >>>>> + def v9fs_readdir(self, tag, id, fid, offset, max_count):
> >>>>> + print "TREADDIR (tag =", tag, ", fid =", fid, ",
> >>>>> offset =", offset, ", max_count =", max_count, ")"
> >>>>> +
> >>>>> + def v9fs_readdir_return(self, tag, id, count, retval):
> >>>>> + print "RREADDIR (tag =", tag, ", count =", count,
> >>>>> ", retval =", retval, ")"
> >>>>> +
> >>>>> + def v9fs_write(self, tag, id, fid, off, count, cnt):
> >>>>> + print "TWRITE (tag =", tag, ", fid =", fid, ",
> >>>>> off =", off, ", count =", count, ", cnt =", cnt, ")"
> >>>>> +
> >>>>> + def v9fs_write_return(self, tag, id, total, err):
> >>>>> + print "RWRITE (tag =", tag, ", total =", total,
> >>>>> ", err =", err, ")"
> >>>>> +
> >>>>> + def v9fs_create(self, tag, id, fid, name, perm, mode):
> >>>>> + print "TCREATE (tag =", tag, ", fid =", fid, ",
> >>>>> perm =", oct(perm), ", name =", name, ", mode =", oct(mode), ")"
> >>>>> +
> >>>>> + def v9fs_create_return(self, tag, id, type, version,
> >>>>> path, iounit):
> >>>>> + print "RCREATE (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, iounit =",
> >>>>> iounit, ")"
> >>>>> +
> >>>>> + def v9fs_symlink(self, tag, id, fid, name, symname, gid):
> >>>>> + print "TSYMLINK (tag =", tag, ", fid =", fid, ",
> >>>>> name =", name, ", symname =", symname, ", gid =", gid, ")"
> >>>>> +
> >>>>> + def v9fs_symlink_return(self, tag, id, type, version, path):
> >>>>> + print "RSYMLINK (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "})"
> >>>>> +
> >>>>> + def v9fs_flush(self, tag, id, flush_tag):
> >>>>> + print "TFLUSH (tag =", tag, ", flush_tag =",
> >>>>> flush_tag, ")"
> >>>>> +
> >>>>> + def v9fs_link(self, tag, id, dfid, oldfid, name):
> >>>>> + print "TLINK (tag =", tag, ", dfid =", dfid, ",
> >>>>> oldfid =", oldfid, ", name =", name, ")"
> >>>>> +
> >>>>> + def v9fs_remove(self, tag, id, fid):
> >>>>> + print "TREMOVE (tag =", tag, ", fid =", fid, ")"
> >>>>> +
> >>>>> + def v9fs_wstat(self, tag, id, fid, mode, atime, mtime):
> >>>>> + print "TWSTAT (tag =", tag, ", fid =", fid, ",
> >>>>> mode =", oct(mode), ", atime =", atime, "mtime =", mtime, ")"
> >>>>> +
> >>>>> + def v9fs_mknod(self, tag, id, fid, mode, major, minor):
> >>>>> + print "TMKNOD (tag =", tag, ", fid =", fid, ",
> >>>>> mode =", oct(mode), ", major =", major, ", minor =", minor, ")"
> >>>>> +
> >>>>> + def v9fs_lock(self, tag, id, fid, type, start, length):
> >>>>> + print "TLOCK (tag =", tag, ", fid =", fid, "type
> >>>>> =", type, ", start =", start, ", length =", length, ")"
> >>>>> +
> >>>>> + def v9fs_lock_return(self, tag, id, status):
> >>>>> + print "RLOCK (tag =", tag, ", status =", status, ")"
> >>>>> +
> >>>>> + def v9fs_getlock(self, tag, id, fid, type, start, length):
> >>>>> + print "TGETLOCK (tag =", tag, ", fid =", fid,
> >>>>> "type =", type, ", start =", start, ", length =", length, ")"
> >>>>> +
> >>>>> + def v9fs_getlock_return(self, tag, id, type, start,
> >>>>> length, proc_id):
> >>>>> + print "RGETLOCK (tag =", tag, "type =", type, ",
> >>>>> start =", start, ", length =", length, ", proc_id =", proc_id, ")"
> >>>>> +
> >>>>> + def v9fs_mkdir(self, tag, id, fid, name, mode, gid):
> >>>>> + print "TMKDIR (tag =", tag, ", fid =", fid, ",
> >>>>> name =", name, ", mode =", mode, ", gid =", gid, ")"
> >>>>> +
> >>>>> + def v9fs_mkdir_return(self, tag, id, type, version, path,
> >>>>> err):
> >>>>> + print "RMKDIR (tag =", tag, ", qid={type =",
> >>>>> type, ", version =", version, ", path =", path, "}, err =", err, ")"
> >>>>> +
> >>>>> + def v9fs_xattrwalk(self, tag, id, fid, newfid, name):
> >>>>> + print "TXATTRWALK (tag =", tag, ", fid =", fid,
> >>>>> ", newfid =", newfid, ", xattr name =", name, ")"
> >>>>> +
> >>>>> + def v9fs_xattrwalk_return(self, tag, id, size):
> >>>>> + print "RXATTRWALK (tag =", tag, ", xattrsize =",
> >>>>> size, ")"
> >>>>> +
> >>>>> + def v9fs_xattrcreate(self, tag, id, fid, name, size, flags):
> >>>>> + print "TXATTRCREATE (tag =", tag, ", fid =", fid,
> >>>>> ", name =", name, ", xattrsize =", size, ", flags =", flags, ")"
> >>>>> +
> >>>>> + def v9fs_readlink(self, tag, id, fid):
> >>>>> + print "TREADLINK (tag =", tag, ", fid =", fid, ")"
> >>>>> +
> >>>>> + def v9fs_readlink_return(self, tag, id, target):
> >>>>> + print "RREADLINK (tag =", tag, ", target =",
> >>>>> target, ")"
> >>>>> +
> >>>>> + def cephfs_lstat_return(self, path, stmode, stuid, stgid,
> >>>>> stsize, ret):
> >>>>> + print "RCEPHFSLSTAT (path =", path, ", stmode =", stmode,
> >>>>> ", stuid =", stuid, ", stgid =", stgid, ", stsize =", stsize, ",
> >>>>> ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_readlink_return(self, path, ret):
> >>>>> + print "RCEPHFSREADLINK (path =", path, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_open_return(self, path, flags, mode, fd):
> >>>>> + print "RCEPHFSOPEN (path =", path, ", flags =", flags, ",
> >>>>> mode =", mode, ", fd =", fd, ")"
> >>>>> +
> >>>>> + def cephfs_opendir_return(self, path, ret):
> >>>>> + print "RCEPHFSOPENDIR (path =", path, ", ret =", ret,
> >>>>> ")"Avoid duplicate copies of messages?
> >> When you are listed explicitly in the To: or Cc: headers of a list
> >> message, you can opt to not receive another copy from the mailing
> >> list. Select Yes to avoid receiving copies from the mailing list;
> >> select No to receive copies.
> >>
> >> If the list has member personalized messages enabled, and you elect
> >> to receive copies, every copy will have a X-Mailman-Copy: yes header
> >> added to it.
> >>>>> +
> >>>>> + def cephfs_rewinddir(self, dir):
> >>>>> + print "TCEPHFSREWINDDIR (dir =", dir, ")"
> >>>>> +
> >>>>> + def cephfs_telldir(self, dir):
> >>>>> + print "TCEPHFSTELLDIR (dir =", dir, ")"
> >>>>> +
> >>>>> + def cephfs_readdir_r_return(self, tmpent, entry, ret):
> >>>>> + print "RCEPHFSREADDIRR (tmpent =", tmpent, ", entry =",
> >>>>> entry, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_seekdir(self, dir, off):
> >>>>> + print "TCEPHFSSEEKDIR (dir =", dir, ", off =", off, ")"
> >>>>> +
> >>>>> + def cephfs_preadv(self, iovcnt, len):
> >>>>> + print "TCEPHFSPREADV (iovcnt=", iovcnt, ", len =", len, ")"
> >>>>> +
> >>>>> + def cephfs_preadv_return(self, iovcnt, len, ret):
> >>>>> + print "RCEPHFSPREADV (iovcnt=", iovcnt, ", len =", len,
> >>>>> ", ret = ", ret, ")"
> >>>>> +
> >>>>> + def cephfs_pwritev(self, iovcnt, len, offset):
> >>>>> + print "TCEPHFSPWRITEV (iovcnt=", iovcnt, ", len =", len,
> >>>>> ", offset =", offset, ")"
> >>>>> +
> >>>>> + def cephfs_pwritev_return(self, iovcnt, len, offset, ret):
> >>>>> + print "RCEPHFSPWRITEV (iovcnt=", iovcnt, ", len =", len,
> >>>>> ", offset =", offset, ", ret = ", ret, ")"
> >>>>> +
> >>>>> + def cephfs_chmod_return(self, path, fcmode, ret):
> >>>>> + print "RCEPHFSCHMOD (path =", path, ", fcmode =", fcmode,
> >>>>> ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_mknod_return(self, path, fcmode, fcrdev, ret):
> >>>>> + print "RCEPHFSMKNOD (path =", path, ", fcmode =", fcmode,
> >>>>> ", fcrdev =", fcrdev, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_mkdir_return(self, path, fcmode, ret):
> >>>>> + print "RCEPHFSMKDIR (path =", path, ", fcmode =", fcmode,
> >>>>> ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_fstat_return(self, fidtype, fd, stuid, stgid,
> >>>>> stsize, ret):
> >>>>> + print "RCEPHFSFSTAT (fidtype =", fidtype, ", fd =", fd,
> >>>>> ", stuid =", stuid, ", stgid =", stgid, ", stsize =", stsize, ",
> >>>>> ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_open2_return(self, path, flags, fcmode):
> >>>>> + print "RCEPHFSOPEN2 (path =", path, ", flags =", flags,
> >>>>> "fcmode =", fcmode, ")"
> >>>>> +
> >>>>> + def cephfs_symlink_return(self, oldpath, path, ret):
> >>>>> + print "RCEPHFSSYMLINK (oldpath =", oldpath, ", path =",
> >>>>> path, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_link_return(self, oldpath, path, ret):
> >>>>> + print "RCEPHFSLINK (oldpath =", oldpath, ", path =",
> >>>>> path, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_truncate_return(self, path, size, ret):
> >>>>> + print "RCEPHFSTRUNCATE (path =", path, ", size =", size,
> >>>>> ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_rename_return(self, oldpath, newpath, ret):
> >>>>> + print "RCEPHFSRENAME (oldpath =", oldpath, ", newpath =",
> >>>>> newpath, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_chown_return(self, path, fcuid, fcgid, ret):
> >>>>> + print "RCEPHFSCHOWN (path =", path, ", fcuid =", fcuid,
> >>>>> ", fcgid =", fcgid, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_utimensat_return(self, path, ret):
> >>>>> + print "RCEPHFSUTIMENSAT (path =", path, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_fsync_return(self, fd, datasync, ret):
> >>>>> + print "RCEPHFSFSYNC (fd =", fd, ", datasync =", datasync,
> >>>>> ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_lgetxattr_return(self, path, name, ret):
> >>>>> + print "RCEPHFSLGETXATTR (path =", path, ", name =", name,
> >>>>> ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_llistxattr_return(self, path, ret):
> >>>>> + print "RCEPHFSLLISTXATTR (path =", path, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_lsetxattr_return(self, path, name, flags, ret):
> >>>>> + print "RCEPHFSLSETXATTR (path =", path, ", name =", name,
> >>>>> ", flags =", flags, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_lremovexattr_return(self, path, name, ret):
> >>>>> + print "RCEPHFSLREMOVEXATTR (path =", path, ", name =",
> >>>>> name, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_renameat_return(self, oldname, newname, ret):
> >>>>> + print "RCEPHFSRENAMEAT (oldname =", oldname, ", newname
> >>>>> =", newname, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_unlinkat_return(self, path, stmode, ret):
> >>>>> + print "RCEPHFSUNLINKAT (path =", path, ", stmode =",
> >>>>> stmode, ", ret =", ret, ")"
> >>>>> +
> >>>>> + def cephfs_init(self, path):
> >>>>> + print "RCEPHFSINIT (path =", path, ")"
> >>>>> +
> >>>>> +simpletrace.run(VirtFSRequestTracker())
> >>>>> diff --git a/trace-events b/trace-events
> >>>>> index 6fba6cc..48aa9cb 100644
> >>>>> --- a/trace-events
> >>>>> +++ b/trace-events
> >>>>> @@ -1118,6 +1118,39 @@ v9fs_xattrcreate(uint16_t tag, uint8_t id,
> >>>>> int32_t fid, char* name, int64_t size
> >>>>> v9fs_readlink(uint16_t tag, uint8_t id, int32_t fid) "tag %d id
> >>>>> %d fid %d"
> >>>>> v9fs_readlink_return(uint16_t tag, uint8_t id, char* target)
> >>>>> "tag %d id %d name %s"
> >>>>>
> >>>>> +# hw/9pfs/9p-cephfs.c
> >>>>> +cephfs_lstat_return(char *path, int stmode, int stuid, int stgid,
> >>>>> int stsize, int ret) "path %s stmode %d stuid %d stgid %d stsize
> >>>>> %d ret %d"
> >>>>> +cephfs_readlink_return(char *path, int ret) "path %s ret %d"
> >>>>> +cephfs_open_return(char *path, int flags, int mode, int fd) "path
> >>>>> %s flags %d mode %d fd %d"
> >>>>> +cephfs_opendir_return(char *path, int ret) "path %s ret %d"
> >>>>> +cephfs_rewinddir(void *dir) "dir %p"
> >>>>> +cephfs_telldir(void *dir) "dir %p"
> >>>>> +cephfs_readdir_r_return(void *tmpent, void *entry, int ret)
> >>>>> "tmpent %p entry %p ret %d"
> >>>>> +cephfs_seekdir(void *dir, int off) "dir %p off %d"
> >>>>> +cephfs_preadv(int iovcnt, int len) "iovcnt %d len %d"
> >>>>> +cephfs_preadv_return(int iovcnt, int len, long ret) "iovcnt %d
> >>>>> len %d ret %ld"
> >>>>> +cephfs_pwritev(int iovcnt, int len, int offset) "iovcnt %d len %d
> >>>>> offset %d"
> >>>>> +cephfs_pwritev_return(int iovcnt, int len, int offset, long ret)
> >>>>> "iovcnt %d len %d offset %d ret %ld"
> >>>>> +cephfs_chmod_return(char *path, int fcmode, int ret) "path %s
> >>>>> fcmode %d ret %d"
> >>>>> +cephfs_mknod_return(char *path, int fcmode, uint32_t fcrdev, int
> >>>>> ret) "path %s fcmode %d fcrdev %u ret %d"
> >>>>> +cephfs_mkdir_return(char *path, int fcmode, int ret) " path %s
> >>>>> fcmode %d ret %d"
> >>>>> +cephfs_fstat_return(int fidtype, int fd, int stuid, int stgid,
> >>>>> int stsize, int ret) "fidtype %d fd %d stuid %d stgid %d stsize %d
> >>>>> ret %d"
> >>>>> +cephfs_open2_return(char *path, int flags, int fcmode) "path %s
> >>>>> flags %d fcmode %d"
> >>>>> +cephfs_symlink_return(const char *oldpath, char *path, int ret)
> >>>>> "oldpath %s path %s ret %d"
> >>>>> +cephfs_link_return(char *oldpath, char *path, int ret) "oldpath
> >>>>> %s path %s ret %d"
> >>>>> +cephfs_truncate_return(char *path, int size, int ret) "path %s
> >>>>> size %d ret %d"
> >>>>> +cephfs_rename_return(const char *oldpath, const char *newpath,
> >>>>> int ret) "oldpath %s newpath %s ret %d"
> >>>>> +cephfs_chown_return(char *path, int fcuid, int fcgid, int ret)
> >>>>> "path %s fcuid %d fcgid %d ret %d"
> >>>>> +cephfs_utimensat_return(char *path, int ret) "path %s ret %d"
> >>>>> +cephfs_fsync_return(int fd, int datasync, int ret) "fd %d
> >>>>> datasync %d ret %d"
> >>>>> +cephfs_lgetxattr_return(char *path, const char *name, int ret)
> >>>>> "path %s name %s ret %d"
> >>>>> +cephfs_llistxattr_return(char *path, int ret) "path %s ret %d"
> >>>>> +cephfs_lsetxattr_return(char *path, const char *name, int flags,
> >>>>> int ret) "path %s name %s flags %d ret %d"
> >>>>> +cephfs_lremovexattr_return(char *path, const char *name, int ret)
> >>>>> "path %s name %s ret %d"
> >>>>> +cephfs_renameat_return(const char *oldname, const char *newname,
> >>>>> int ret) "oldname %s newname %s ret %d"
> >>>>> +cephfs_unlinkat_return(char *path, int stmode, int ret) "path %s
> >>>>> stmode %d ret %d"
> >>>>> +cephfs_init(char *path) "path %s"
> >>>>> +
> >>>>> # target-sparc/mmu_helper.c
> >>>>> mmu_helper_dfault(uint64_t address, uint64_t context, int
> >>>>> mmu_idx, uint32_t tl) "DFAULT at %"PRIx64" context %"PRIx64"
> >>>>> mmu_idx=%d tl=%d"
> >>>>> mmu_helper_dprot(uint64_t address, uint64_t context, int
> >>>>> mmu_idx, uint32_t tl) "DPROT at %"PRIx64" context %"PRIx64"
> >>>>> mmu_idx=%d tl=%d"
> >
>