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Re: [Qemu-devel] [PATCH] hw/9pfs: Add CephFS support in VirtFS
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From: |
Greg Kurz |
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Subject: |
Re: [Qemu-devel] [PATCH] hw/9pfs: Add CephFS support in VirtFS |
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Date: |
Tue, 15 Mar 2016 14:46:58 +0100 |
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 !
> > 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).
> 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?
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> >> +
> >> + 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"
>