From 9d3788b1c2fa5cb4f14e292232a05c6a5217802d Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:00:44 +0100
Subject: [PATCH 013/116] virtiofsd: Trim down imported files
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200127190227.40942-10-dgilbert@redhat.com>
Patchwork-id: 93463
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 009/112] virtiofsd: Trim down imported files
Bugzilla: 1694164
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
There's a lot of the original fuse code we don't need; trim them down.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
with additional trimming by:
Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit a3e23f325439a290c504d6bbc48c2e742149ecab)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
tools/virtiofsd/buffer.c | 71 +---
tools/virtiofsd/fuse.h | 46 ---
tools/virtiofsd/fuse_common.h | 32 --
tools/virtiofsd/fuse_i.h | 41 ---
tools/virtiofsd/fuse_log.h | 8 -
tools/virtiofsd/fuse_lowlevel.c | 675 +---------------------------------
tools/virtiofsd/fuse_lowlevel.h | 28 --
tools/virtiofsd/fuse_opt.h | 8 -
tools/virtiofsd/helper.c | 143 -------
tools/virtiofsd/passthrough_helpers.h | 26 --
tools/virtiofsd/passthrough_ll.c | 1 -
11 files changed, 8 insertions(+), 1071 deletions(-)
diff --git a/tools/virtiofsd/buffer.c b/tools/virtiofsd/buffer.c
index 5ab9b87..aefb7db 100644
--- a/tools/virtiofsd/buffer.c
+++ b/tools/virtiofsd/buffer.c
@@ -157,73 +157,6 @@ static ssize_t fuse_buf_fd_to_fd(const struct fuse_buf *dst, size_t dst_off,
return copied;
}
-#ifdef HAVE_SPLICE
-static ssize_t fuse_buf_splice(const struct fuse_buf *dst, size_t dst_off,
- const struct fuse_buf *src, size_t src_off,
- size_t len, enum fuse_buf_copy_flags flags)
-{
- int splice_flags = 0;
- off_t *srcpos = NULL;
- off_t *dstpos = NULL;
- off_t srcpos_val;
- off_t dstpos_val;
- ssize_t res;
- size_t copied = 0;
-
- if (flags & FUSE_BUF_SPLICE_MOVE)
- splice_flags |= SPLICE_F_MOVE;
- if (flags & FUSE_BUF_SPLICE_NONBLOCK)
- splice_flags |= SPLICE_F_NONBLOCK;
-
- if (src->flags & FUSE_BUF_FD_SEEK) {
- srcpos_val = src->pos + src_off;
- srcpos = &srcpos_val;
- }
- if (dst->flags & FUSE_BUF_FD_SEEK) {
- dstpos_val = dst->pos + dst_off;
- dstpos = &dstpos_val;
- }
-
- while (len) {
- res = splice(src->fd, srcpos, dst->fd, dstpos, len,
- splice_flags);
- if (res == -1) {
- if (copied)
- break;
-
- if (errno != EINVAL || (flags & FUSE_BUF_FORCE_SPLICE))
- return -errno;
-
- /* Maybe splice is not supported for this combination */
- return fuse_buf_fd_to_fd(dst, dst_off, src, src_off,
- len);
- }
- if (res == 0)
- break;
-
- copied += res;
- if (!(src->flags & FUSE_BUF_FD_RETRY) &&
- !(dst->flags & FUSE_BUF_FD_RETRY)) {
- break;
- }
-
- len -= res;
- }
-
- return copied;
-}
-#else
-static ssize_t fuse_buf_splice(const struct fuse_buf *dst, size_t dst_off,
- const struct fuse_buf *src, size_t src_off,
- size_t len, enum fuse_buf_copy_flags flags)
-{
- (void) flags;
-
- return fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);
-}
-#endif
-
-
static ssize_t fuse_buf_copy_one(const struct fuse_buf *dst, size_t dst_off,
const struct fuse_buf *src, size_t src_off,
size_t len, enum fuse_buf_copy_flags flags)
@@ -247,10 +180,8 @@ static ssize_t fuse_buf_copy_one(const struct fuse_buf *dst, size_t dst_off,
return fuse_buf_write(dst, dst_off, src, src_off, len);
} else if (!dst_is_fd) {
return fuse_buf_read(dst, dst_off, src, src_off, len);
- } else if (flags & FUSE_BUF_NO_SPLICE) {
- return fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);
} else {
- return fuse_buf_splice(dst, dst_off, src, src_off, len, flags);
+ return fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);
}
}
diff --git a/tools/virtiofsd/fuse.h b/tools/virtiofsd/fuse.h
index 883f6e5..3202fba 100644
--- a/tools/virtiofsd/fuse.h
+++ b/tools/virtiofsd/fuse.h
@@ -25,10 +25,6 @@
#include <sys/statvfs.h>
#include <sys/uio.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/* ----------------------------------------------------------- *
* Basic FUSE API *
* ----------------------------------------------------------- */
@@ -979,44 +975,6 @@ int fuse_loop(struct fuse *f);
void fuse_exit(struct fuse *f);
/**
- * FUSE event loop with multiple threads
- *
- * Requests from the kernel are processed, and the appropriate
- * operations are called. Request are processed in parallel by
- * distributing them between multiple threads.
- *
- * For a description of the return value and the conditions when the
- * event loop exits, refer to the documentation of
- * fuse_session_loop().
- *
- * Note: using fuse_loop() instead of fuse_loop_mt() means you are running in
- * single-threaded mode, and that you will not have to worry about reentrancy,
- * though you will have to worry about recursive lookups. In single-threaded
- * mode, FUSE will wait for one callback to return before calling another.
- *
- * Enabling multiple threads, by using fuse_loop_mt(), will cause FUSE to make
- * multiple simultaneous calls into the various callback functions given by your
- * fuse_operations record.
- *
- * If you are using multiple threads, you can enjoy all the parallel execution
- * and interactive response benefits of threads, and you get to enjoy all the
- * benefits of race conditions and locking bugs, too. Ensure that any code used
- * in the callback function of fuse_operations is also thread-safe.
- *
- * @param f the FUSE handle
- * @param config loop configuration
- * @return see fuse_session_loop()
- *
- * See also: fuse_loop()
- */
-#if FUSE_USE_VERSION < 32
-int fuse_loop_mt_31(struct fuse *f, int clone_fd);
-#define fuse_loop_mt(f, clone_fd) fuse_loop_mt_31(f, clone_fd)
-#else
-int fuse_loop_mt(struct fuse *f, struct fuse_loop_config *config);
-#endif
-
-/**
* Get the current context
*
* The context is only valid for the duration of a filesystem
@@ -1268,8 +1226,4 @@ struct fuse_session *fuse_get_session(struct fuse *f);
*/
int fuse_open_channel(const char *mountpoint, const char *options);
-#ifdef __cplusplus
-}
-#endif
-
#endif /* FUSE_H_ */
diff --git a/tools/virtiofsd/fuse_common.h b/tools/virtiofsd/fuse_common.h
index 2d686b2..bf8f8cc 100644
--- a/tools/virtiofsd/fuse_common.h
+++ b/tools/virtiofsd/fuse_common.h
@@ -28,10 +28,6 @@
#define FUSE_MAKE_VERSION(maj, min) ((maj) * 10 + (min))
#define FUSE_VERSION FUSE_MAKE_VERSION(FUSE_MAJOR_VERSION, FUSE_MINOR_VERSION)
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/**
* Information about an open file.
*
@@ -100,30 +96,6 @@ struct fuse_file_info {
uint32_t poll_events;
};
-/**
- * Configuration parameters passed to fuse_session_loop_mt() and
- * fuse_loop_mt().
- */
-struct fuse_loop_config {
- /**
- * whether to use separate device fds for each thread
- * (may increase performance)
- */
- int clone_fd;
-
- /**
- * The maximum number of available worker threads before they
- * start to get deleted when they become idle. If not
- * specified, the default is 10.
- *
- * Adjusting this has performance implications; a very small number
- * of threads in the pool will cause a lot of thread creation and
- * deletion overhead and performance may suffer. When set to 0, a new
- * thread will be created to service every operation.
- */
- unsigned int max_idle_threads;
-};
-
/**************************************************************************
* Capability bits for 'fuse_conn_info.capable' and 'fuse_conn_info.want' *
**************************************************************************/
@@ -802,10 +774,6 @@ void fuse_remove_signal_handlers(struct fuse_session *se);
# error only API version 30 or greater is supported
#endif
-#ifdef __cplusplus
-}
-#endif
-
/*
* This interface uses 64 bit off_t.
diff --git a/tools/virtiofsd/fuse_i.h b/tools/virtiofsd/fuse_i.h
index d38b630..b39522e 100644
--- a/tools/virtiofsd/fuse_i.h
+++ b/tools/virtiofsd/fuse_i.h
@@ -9,8 +9,6 @@
#include "fuse.h"
#include "fuse_lowlevel.h"
-struct mount_opts;
-
struct fuse_req {
struct fuse_session *se;
uint64_t unique;
@@ -45,7 +43,6 @@ struct fuse_session {
char *mountpoint;
volatile int exited;
int fd;
- struct mount_opts *mo;
int debug;
int deny_others;
struct fuse_lowlevel_ops op;
@@ -58,7 +55,6 @@ struct fuse_session {
struct fuse_req interrupts;
pthread_mutex_t lock;
int got_destroy;
- pthread_key_t pipe_key;
int broken_splice_nonblock;
uint64_t notify_ctr;
struct fuse_notify_req notify_list;
@@ -87,53 +83,16 @@ struct fuse_module {
int ctr;
};
-/* ----------------------------------------------------------- *
- * Channel interface (when using -o clone_fd) *
- * ----------------------------------------------------------- */
-
-/**
- * Obtain counted reference to the channel
- *
- * @param ch the channel
- * @return the channel
- */
-struct fuse_chan *fuse_chan_get(struct fuse_chan *ch);
-
-/**
- * Drop counted reference to a channel
- *
- * @param ch the channel
- */
-void fuse_chan_put(struct fuse_chan *ch);
-
-struct mount_opts *parse_mount_opts(struct fuse_args *args);
-void destroy_mount_opts(struct mount_opts *mo);
-void fuse_mount_version(void);
-unsigned get_max_read(struct mount_opts *o);
-void fuse_kern_unmount(const char *mountpoint, int fd);
-int fuse_kern_mount(const char *mountpoint, struct mount_opts *mo);
-
int fuse_send_reply_iov_nofree(fuse_req_t req, int error, struct iovec *iov,
int count);
void fuse_free_req(fuse_req_t req);
-void cuse_lowlevel_init(fuse_req_t req, fuse_ino_t nodeide, const void *inarg);
-
-int fuse_start_thread(pthread_t *thread_id, void *(*func)(void *), void *arg);
-
-int fuse_session_receive_buf_int(struct fuse_session *se, struct fuse_buf *buf,
- struct fuse_chan *ch);
void fuse_session_process_buf_int(struct fuse_session *se,
const struct fuse_buf *buf, struct fuse_chan *ch);
-struct fuse *fuse_new_31(struct fuse_args *args, const struct fuse_operations *op,
- size_t op_size, void *private_data);
-int fuse_loop_mt_32(struct fuse *f, struct fuse_loop_config *config);
-int fuse_session_loop_mt_32(struct fuse_session *se, struct fuse_loop_config *config);
#define FUSE_MAX_MAX_PAGES 256
#define FUSE_DEFAULT_MAX_PAGES_PER_REQ 32
/* room needed in buffer to accommodate header */
#define FUSE_BUFFER_HEADER_SIZE 0x1000
-
diff --git a/tools/virtiofsd/fuse_log.h b/tools/virtiofsd/fuse_log.h
index 5e112e0..0af700d 100644
--- a/tools/virtiofsd/fuse_log.h
+++ b/tools/virtiofsd/fuse_log.h
@@ -16,10 +16,6 @@
#include <stdarg.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/**
* Log severity level
*
@@ -75,8 +71,4 @@ void fuse_set_log_func(fuse_log_func_t func);
*/
void fuse_log(enum fuse_log_level level, const char *fmt, ...);
-#ifdef __cplusplus
-}
-#endif
-
#endif /* FUSE_LOG_H_ */
diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
index f2d7038..e6fa247 100644
--- a/tools/virtiofsd/fuse_lowlevel.c
+++ b/tools/virtiofsd/fuse_lowlevel.c
@@ -16,7 +16,6 @@
#include "fuse_kernel.h"
#include "fuse_opt.h"
#include "fuse_misc.h"
-#include "mount_util.h"
#include <stdio.h>
#include <stdlib.h>
@@ -28,12 +27,6 @@
#include <assert.h>
#include <sys/file.h>
-#ifndef F_LINUX_SPECIFIC_BASE
-#define F_LINUX_SPECIFIC_BASE 1024
-#endif
-#ifndef F_SETPIPE_SZ
-#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
-#endif
#define PARAM(inarg) (((char *)(inarg)) + sizeof(*(inarg)))
@@ -137,7 +130,6 @@ void fuse_free_req(fuse_req_t req)
req->u.ni.data = NULL;
list_del_req(req);
ctr = --req->ctr;
- fuse_chan_put(req->ch);
req->ch = NULL;
pthread_mutex_unlock(&se->lock);
if (!ctr)
@@ -184,19 +176,7 @@ static int fuse_send_msg(struct fuse_session *se, struct fuse_chan *ch,
}
}
- ssize_t res = writev(ch ? ch->fd : se->fd,
- iov, count);
- int err = errno;
-
- if (res == -1) {
- assert(se != NULL);
-
- /* ENOENT means the operation was interrupted */
- if (!fuse_session_exited(se) && err != ENOENT)
- perror("fuse: writing device");
- return -err;
- }
-
+ abort(); /* virtio should have taken it before here */
return 0;
}
@@ -480,10 +460,6 @@ static int fuse_send_data_iov_fallback(struct fuse_session *se,
struct fuse_bufvec *buf,
size_t len)
{
- struct fuse_bufvec mem_buf = FUSE_BUFVEC_INIT(len);
- void *mbuf;
- int res;
-
/* Optimize common case */
if (buf->count == 1 && buf->idx == 0 && buf->off == 0 &&
!(buf->buf[0].flags & FUSE_BUF_IS_FD)) {
@@ -496,350 +472,10 @@ static int fuse_send_data_iov_fallback(struct fuse_session *se,
return fuse_send_msg(se, ch, iov, iov_count);
}
- res = posix_memalign(&mbuf, pagesize, len);
- if (res != 0)
- return res;
-
- mem_buf.buf[0].mem = mbuf;
- res = fuse_buf_copy(&mem_buf, buf, 0);
- if (res < 0) {
- free(mbuf);
- return -res;
- }
- len = res;
-
- iov[iov_count].iov_base = mbuf;
- iov[iov_count].iov_len = len;
- iov_count++;
- res = fuse_send_msg(se, ch, iov, iov_count);
- free(mbuf);
-
- return res;
-}
-
-struct fuse_ll_pipe {
- size_t size;
- int can_grow;
- int pipe[2];
-};
-
-static void fuse_ll_pipe_free(struct fuse_ll_pipe *llp)
-{
- close(llp->pipe[0]);
- close(llp->pipe[1]);
- free(llp);
-}
-
-#ifdef HAVE_SPLICE
-#if !defined(HAVE_PIPE2) || !defined(O_CLOEXEC)
-static int fuse_pipe(int fds[2])
-{
- int rv = pipe(fds);
-
- if (rv == -1)
- return rv;
-
- if (fcntl(fds[0], F_SETFL, O_NONBLOCK) == -1 ||
- fcntl(fds[1], F_SETFL, O_NONBLOCK) == -1 ||
- fcntl(fds[0], F_SETFD, FD_CLOEXEC) == -1 ||
- fcntl(fds[1], F_SETFD, FD_CLOEXEC) == -1) {
- close(fds[0]);
- close(fds[1]);
- rv = -1;
- }
- return rv;
-}
-#else
-static int fuse_pipe(int fds[2])
-{
- return pipe2(fds, O_CLOEXEC | O_NONBLOCK);
-}
-#endif
-
-static struct fuse_ll_pipe *fuse_ll_get_pipe(struct fuse_session *se)
-{
- struct fuse_ll_pipe *llp = pthread_getspecific(se->pipe_key);
- if (llp == NULL) {
- int res;
-
- llp = malloc(sizeof(struct fuse_ll_pipe));
- if (llp == NULL)
- return NULL;
-
- res = fuse_pipe(llp->pipe);
- if (res == -1) {
- free(llp);
- return NULL;
- }
-
- /*
- *the default size is 16 pages on linux
- */
- llp->size = pagesize * 16;
- llp->can_grow = 1;
-
- pthread_setspecific(se->pipe_key, llp);
- }
-
- return llp;
-}
-#endif
-
-static void fuse_ll_clear_pipe(struct fuse_session *se)
-{
- struct fuse_ll_pipe *llp = pthread_getspecific(se->pipe_key);
- if (llp) {
- pthread_setspecific(se->pipe_key, NULL);
- fuse_ll_pipe_free(llp);
- }
-}
-
-#if defined(HAVE_SPLICE) && defined(HAVE_VMSPLICE)
-static int read_back(int fd, char *buf, size_t len)
-{
- int res;
-
- res = read(fd, buf, len);
- if (res == -1) {
- fuse_log(FUSE_LOG_ERR, "fuse: internal error: failed to read back from pipe: %s\n", strerror(errno));
- return -EIO;
- }
- if (res != len) {
- fuse_log(FUSE_LOG_ERR, "fuse: internal error: short read back from pipe: %i from %zi\n", res, len);
- return -EIO;
- }
+ abort(); /* Will have taken vhost path */
return 0;
}
-static int grow_pipe_to_max(int pipefd)
-{
- int max;
- int res;
- int maxfd;
- char buf[32];
-
- maxfd = open("/proc/sys/fs/pipe-max-size", O_RDONLY);
- if (maxfd < 0)
- return -errno;
-
- res = read(maxfd, buf, sizeof(buf) - 1);
- if (res < 0) {
- int saved_errno;
-
- saved_errno = errno;
- close(maxfd);
- return -saved_errno;
- }
- close(maxfd);
- buf[res] = '\0';
-
- max = atoi(buf);
- res = fcntl(pipefd, F_SETPIPE_SZ, max);
- if (res < 0)
- return -errno;
- return max;
-}
-
-static int fuse_send_data_iov(struct fuse_session *se, struct fuse_chan *ch,
- struct iovec *iov, int iov_count,
- struct fuse_bufvec *buf, unsigned int flags)
-{
- int res;
- size_t len = fuse_buf_size(buf);
- struct fuse_out_header *out = iov[0].iov_base;
- struct fuse_ll_pipe *llp;
- int splice_flags;
- size_t pipesize;
- size_t total_fd_size;
- size_t idx;
- size_t headerlen;
- struct fuse_bufvec pipe_buf = FUSE_BUFVEC_INIT(len);
-
- if (se->broken_splice_nonblock)
- goto fallback;
-
- if (flags & FUSE_BUF_NO_SPLICE)
- goto fallback;
-
- total_fd_size = 0;
- for (idx = buf->idx; idx < buf->count; idx++) {
- if (buf->buf[idx].flags & FUSE_BUF_IS_FD) {
- total_fd_size = buf->buf[idx].size;
- if (idx == buf->idx)
- total_fd_size -= buf->off;
- }
- }
- if (total_fd_size < 2 * pagesize)
- goto fallback;
-
- if (se->conn.proto_minor < 14 ||
- !(se->conn.want & FUSE_CAP_SPLICE_WRITE))
- goto fallback;
-
- llp = fuse_ll_get_pipe(se);
- if (llp == NULL)
- goto fallback;
-
-
- headerlen = iov_length(iov, iov_count);
-
- out->len = headerlen + len;
-
- /*
- * Heuristic for the required pipe size, does not work if the
- * source contains less than page size fragments
- */
- pipesize = pagesize * (iov_count + buf->count + 1) + out->len;
-
- if (llp->size < pipesize) {
- if (llp->can_grow) {
- res = fcntl(llp->pipe[0], F_SETPIPE_SZ, pipesize);
- if (res == -1) {
- res = grow_pipe_to_max(llp->pipe[0]);
- if (res > 0)
- llp->size = res;
- llp->can_grow = 0;
- goto fallback;
- }
- llp->size = res;
- }
- if (llp->size < pipesize)
- goto fallback;
- }
-
-
- res = vmsplice(llp->pipe[1], iov, iov_count, SPLICE_F_NONBLOCK);
- if (res == -1)
- goto fallback;
-
- if (res != headerlen) {
- res = -EIO;
- fuse_log(FUSE_LOG_ERR, "fuse: short vmsplice to pipe: %u/%zu\n", res,
- headerlen);
- goto clear_pipe;
- }
-
- pipe_buf.buf[0].flags = FUSE_BUF_IS_FD;
- pipe_buf.buf[0].fd = llp->pipe[1];
-
- res = fuse_buf_copy(&pipe_buf, buf,
- FUSE_BUF_FORCE_SPLICE | FUSE_BUF_SPLICE_NONBLOCK);
- if (res < 0) {
- if (res == -EAGAIN || res == -EINVAL) {
- /*
- * Should only get EAGAIN on kernels with
- * broken SPLICE_F_NONBLOCK support (<=
- * 2.6.35) where this error or a short read is
- * returned even if the pipe itself is not
- * full
- *
- * EINVAL might mean that splice can't handle
- * this combination of input and output.
- */
- if (res == -EAGAIN)
- se->broken_splice_nonblock = 1;
-
- pthread_setspecific(se->pipe_key, NULL);
- fuse_ll_pipe_free(llp);
- goto fallback;
- }
- res = -res;
- goto clear_pipe;
- }
-
- if (res != 0 && res < len) {
- struct fuse_bufvec mem_buf = FUSE_BUFVEC_INIT(len);
- void *mbuf;
- size_t now_len = res;
- /*
- * For regular files a short count is either
- * 1) due to EOF, or
- * 2) because of broken SPLICE_F_NONBLOCK (see above)
- *
- * For other inputs it's possible that we overflowed
- * the pipe because of small buffer fragments.
- */
-
- res = posix_memalign(&mbuf, pagesize, len);
- if (res != 0)
- goto clear_pipe;
-
- mem_buf.buf[0].mem = mbuf;
- mem_buf.off = now_len;
- res = fuse_buf_copy(&mem_buf, buf, 0);
- if (res > 0) {
- char *tmpbuf;
- size_t extra_len = res;
- /*
- * Trickiest case: got more data. Need to get
- * back the data from the pipe and then fall
- * back to regular write.
- */
- tmpbuf = malloc(headerlen);
- if (tmpbuf == NULL) {
- free(mbuf);
- res = ENOMEM;
- goto clear_pipe;
- }
- res = read_back(llp->pipe[0], tmpbuf, headerlen);
- free(tmpbuf);
- if (res != 0) {
- free(mbuf);
- goto clear_pipe;
- }
- res = read_back(llp->pipe[0], mbuf, now_len);
- if (res != 0) {
- free(mbuf);
- goto clear_pipe;
- }
- len = now_len + extra_len;
- iov[iov_count].iov_base = mbuf;
- iov[iov_count].iov_len = len;
- iov_count++;
- res = fuse_send_msg(se, ch, iov, iov_count);
- free(mbuf);
- return res;
- }
- free(mbuf);
- res = now_len;
- }
- len = res;
- out->len = headerlen + len;
-
- if (se->debug) {
- fuse_log(FUSE_LOG_DEBUG,
- " unique: %llu, success, outsize: %i (splice)\n",
- (unsigned long long) out->unique, out->len);
- }
-
- splice_flags = 0;
- if ((flags & FUSE_BUF_SPLICE_MOVE) &&
- (se->conn.want & FUSE_CAP_SPLICE_MOVE))
- splice_flags |= SPLICE_F_MOVE;
-
- res = splice(llp->pipe[0], NULL, ch ? ch->fd : se->fd,
- NULL, out->len, splice_flags);
- if (res == -1) {
- res = -errno;
- perror("fuse: splice from pipe");
- goto clear_pipe;
- }
- if (res != out->len) {
- res = -EIO;
- fuse_log(FUSE_LOG_ERR, "fuse: short splice from pipe: %u/%u\n",
- res, out->len);
- goto clear_pipe;
- }
- return 0;
-
-clear_pipe:
- fuse_ll_clear_pipe(se);
- return res;
-
-fallback:
- return fuse_send_data_iov_fallback(se, ch, iov, iov_count, buf, len);
-}
-#else
static int fuse_send_data_iov(struct fuse_session *se, struct fuse_chan *ch,
struct iovec *iov, int iov_count,
struct fuse_bufvec *buf, unsigned int flags)
@@ -849,7 +485,6 @@ static int fuse_send_data_iov(struct fuse_session *se, struct fuse_chan *ch,
return fuse_send_data_iov_fallback(se, ch, iov, iov_count, buf, len);
}
-#endif
int fuse_reply_data(fuse_req_t req, struct fuse_bufvec *bufv,
enum fuse_buf_copy_flags flags)
@@ -1408,16 +1043,11 @@ static void do_write_buf(fuse_req_t req, fuse_ino_t nodeid, const void *inarg,
if (bufv.buf[0].size < arg->size) {
fuse_log(FUSE_LOG_ERR, "fuse: do_write_buf: buffer size too small\n");
fuse_reply_err(req, EIO);
- goto out;
+ return;
}
bufv.buf[0].size = arg->size;
se->op.write_buf(req, nodeid, &bufv, arg->offset, &fi);
-
-out:
- /* Need to reset the pipe if ->write_buf() didn't consume all data */
- if ((ibuf->flags & FUSE_BUF_IS_FD) && bufv.idx < bufv.count)
- fuse_ll_clear_pipe(se);
}
static void do_flush(fuse_req_t req, fuse_ino_t nodeid, const void *inarg)
@@ -2038,17 +1668,6 @@ static void do_init(fuse_req_t req, fuse_ino_t nodeid, const void *inarg)
return;
}
- unsigned max_read_mo = get_max_read(se->mo);
- if (se->conn.max_read != max_read_mo) {
- fuse_log(FUSE_LOG_ERR, "fuse: error: init() and fuse_session_new() "
- "requested different maximum read size (%u vs %u)\n",
- se->conn.max_read, max_read_mo);
- fuse_reply_err(req, EPROTO);
- se->error = -EPROTO;
- fuse_session_exit(se);
- return;
- }
-
if (se->conn.max_write < bufsize - FUSE_BUFFER_HEADER_SIZE) {
se->bufsize = se->conn.max_write + FUSE_BUFFER_HEADER_SIZE;
}
@@ -2364,8 +1983,6 @@ static void fuse_ll_retrieve_reply(struct fuse_notify_req *nreq,
}
out:
free(rreq);
- if ((ibuf->flags & FUSE_BUF_IS_FD) && bufv.idx < bufv.count)
- fuse_ll_clear_pipe(se);
}
int fuse_lowlevel_notify_retrieve(struct fuse_session *se, fuse_ino_t ino,
@@ -2496,7 +2113,6 @@ static struct {
[FUSE_RENAME2] = { do_rename2, "RENAME2" },
[FUSE_COPY_FILE_RANGE] = { do_copy_file_range, "COPY_FILE_RANGE" },
[FUSE_LSEEK] = { do_lseek, "LSEEK" },
- [CUSE_INIT] = { cuse_lowlevel_init, "CUSE_INIT" },
};
#define FUSE_MAXOP (sizeof(fuse_ll_ops) / sizeof(fuse_ll_ops[0]))
@@ -2509,21 +2125,6 @@ static const char *opname(enum fuse_opcode opcode)
return fuse_ll_ops[opcode].name;
}
-static int fuse_ll_copy_from_pipe(struct fuse_bufvec *dst,
- struct fuse_bufvec *src)
-{
- ssize_t res = fuse_buf_copy(dst, src, 0);
- if (res < 0) {
- fuse_log(FUSE_LOG_ERR, "fuse: copy from pipe: %s\n", strerror(-res));
- return res;
- }
- if ((size_t)res < fuse_buf_size(dst)) {
- fuse_log(FUSE_LOG_ERR, "fuse: copy from pipe: short read\n");
- return -1;
- }
- return 0;
-}
-
void fuse_session_process_buf(struct fuse_session *se,
const struct fuse_buf *buf)
{
@@ -2533,36 +2134,12 @@ void fuse_session_process_buf(struct fuse_session *se,
void fuse_session_process_buf_int(struct fuse_session *se,
const struct fuse_buf *buf, struct fuse_chan *ch)
{
- const size_t write_header_size = sizeof(struct fuse_in_header) +
- sizeof(struct fuse_write_in);
- struct fuse_bufvec bufv = { .buf[0] = *buf, .count = 1 };
- struct fuse_bufvec tmpbuf = FUSE_BUFVEC_INIT(write_header_size);
struct fuse_in_header *in;
const void *inarg;
struct fuse_req *req;
- void *mbuf = NULL;
int err;
- int res;
-
- if (buf->flags & FUSE_BUF_IS_FD) {
- if (buf->size < tmpbuf.buf[0].size)
- tmpbuf.buf[0].size = buf->size;
- mbuf = malloc(tmpbuf.buf[0].size);
- if (mbuf == NULL) {
- fuse_log(FUSE_LOG_ERR, "fuse: failed to allocate header\n");
- goto clear_pipe;
- }
- tmpbuf.buf[0].mem = mbuf;
-
- res = fuse_ll_copy_from_pipe(&tmpbuf, &bufv);
- if (res < 0)
- goto clear_pipe;
-
- in = mbuf;
- } else {
- in = buf->mem;
- }
+ in = buf->mem;
if (se->debug) {
fuse_log(FUSE_LOG_DEBUG,
@@ -2584,14 +2161,14 @@ void fuse_session_process_buf_int(struct fuse_session *se,
};
fuse_send_msg(se, ch, &iov, 1);
- goto clear_pipe;
+ return;
}
req->unique = in->unique;
req->ctx.uid = in->uid;
req->ctx.gid = in->gid;
req->ctx.pid = in->pid;
- req->ch = ch ? fuse_chan_get(ch) : NULL;
+ req->ch = ch;
err = EIO;
if (!se->got_init) {
@@ -2627,28 +2204,6 @@ void fuse_session_process_buf_int(struct fuse_session *se,
fuse_reply_err(intr, EAGAIN);
}
- if ((buf->flags & FUSE_BUF_IS_FD) && write_header_size < buf->size &&
- (in->opcode != FUSE_WRITE || !se->op.write_buf) &&
- in->opcode != FUSE_NOTIFY_REPLY) {
- void *newmbuf;
-
- err = ENOMEM;
- newmbuf = realloc(mbuf, buf->size);
- if (newmbuf == NULL)
- goto reply_err;
- mbuf = newmbuf;
-
- tmpbuf = FUSE_BUFVEC_INIT(buf->size - write_header_size);
- tmpbuf.buf[0].mem = (char *)mbuf + write_header_size;
-
- res = fuse_ll_copy_from_pipe(&tmpbuf, &bufv);
- err = -res;
- if (res < 0)
- goto reply_err;
-
- in = mbuf;
- }
-
inarg = (void *) &in[1];
if (in->opcode == FUSE_WRITE && se->op.write_buf)
do_write_buf(req, in->nodeid, inarg, buf);
@@ -2657,16 +2212,10 @@ void fuse_session_process_buf_int(struct fuse_session *se,
else
fuse_ll_ops[in->opcode].func(req, in->nodeid, inarg);
-out_free:
- free(mbuf);
return;
reply_err:
fuse_reply_err(req, err);
-clear_pipe:
- if (buf->flags & FUSE_BUF_IS_FD)
- fuse_ll_clear_pipe(se);
- goto out_free;
}
#define LL_OPTION(n,o,v) \
@@ -2684,7 +2233,6 @@ void fuse_lowlevel_version(void)
{
printf("using FUSE kernel interface version %i.%i\n",
FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION);
- fuse_mount_version();
}
void fuse_lowlevel_help(void)
@@ -2692,204 +2240,29 @@ void fuse_lowlevel_help(void)
/* These are not all options, but the ones that are
potentially of interest to an end-user */
printf(
-" -o allow_other allow access by all users\n"
" -o allow_root allow access by root\n"
-" -o auto_unmount auto unmount on process termination\n");
+);
}
void fuse_session_destroy(struct fuse_session *se)
{
- struct fuse_ll_pipe *llp;
-
if (se->got_init && !se->got_destroy) {
if (se->op.destroy)
se->op.destroy(se->userdata);
}
- llp = pthread_getspecific(se->pipe_key);
- if (llp != NULL)
- fuse_ll_pipe_free(llp);
- pthread_key_delete(se->pipe_key);
pthread_mutex_destroy(&se->lock);
free(se->cuse_data);
if (se->fd != -1)
close(se->fd);
- destroy_mount_opts(se->mo);
free(se);
}
-static void fuse_ll_pipe_destructor(void *data)
-{
- struct fuse_ll_pipe *llp = data;
- fuse_ll_pipe_free(llp);
-}
-
-int fuse_session_receive_buf(struct fuse_session *se, struct fuse_buf *buf)
-{
- return fuse_session_receive_buf_int(se, buf, NULL);
-}
-
-int fuse_session_receive_buf_int(struct fuse_session *se, struct fuse_buf *buf,
- struct fuse_chan *ch)
-{
- int err;
- ssize_t res;
-#ifdef HAVE_SPLICE
- size_t bufsize = se->bufsize;
- struct fuse_ll_pipe *llp;
- struct fuse_buf tmpbuf;
-
- if (se->conn.proto_minor < 14 || !(se->conn.want & FUSE_CAP_SPLICE_READ))
- goto fallback;
-
- llp = fuse_ll_get_pipe(se);
- if (llp == NULL)
- goto fallback;
-
- if (llp->size < bufsize) {
- if (llp->can_grow) {
- res = fcntl(llp->pipe[0], F_SETPIPE_SZ, bufsize);
- if (res == -1) {
- llp->can_grow = 0;
- res = grow_pipe_to_max(llp->pipe[0]);
- if (res > 0)
- llp->size = res;
- goto fallback;
- }
- llp->size = res;
- }
- if (llp->size < bufsize)
- goto fallback;
- }
-
- res = splice(ch ? ch->fd : se->fd,
- NULL, llp->pipe[1], NULL, bufsize, 0);
- err = errno;
-
- if (fuse_session_exited(se))
- return 0;
-
- if (res == -1) {
- if (err == ENODEV) {
- /* Filesystem was unmounted, or connection was aborted
- via /sys/fs/fuse/connections */
- fuse_session_exit(se);
- return 0;
- }
- if (err != EINTR && err != EAGAIN)
- perror("fuse: splice from device");
- return -err;
- }
-
- if (res < sizeof(struct fuse_in_header)) {
- fuse_log(FUSE_LOG_ERR, "short splice from fuse device\n");
- return -EIO;
- }
-
- tmpbuf = (struct fuse_buf) {
- .size = res,
- .flags = FUSE_BUF_IS_FD,
- .fd = llp->pipe[0],
- };
-
- /*
- * Don't bother with zero copy for small requests.
- * fuse_loop_mt() needs to check for FORGET so this more than
- * just an optimization.
- */
- if (res < sizeof(struct fuse_in_header) +
- sizeof(struct fuse_write_in) + pagesize) {
- struct fuse_bufvec src = { .buf[0] = tmpbuf, .count = 1 };
- struct fuse_bufvec dst = { .count = 1 };
-
- if (!buf->mem) {
- buf->mem = malloc(se->bufsize);
- if (!buf->mem) {
- fuse_log(FUSE_LOG_ERR,
- "fuse: failed to allocate read buffer\n");
- return -ENOMEM;
- }
- }
- buf->size = se->bufsize;
- buf->flags = 0;
- dst.buf[0] = *buf;
-
- res = fuse_buf_copy(&dst, &src, 0);
- if (res < 0) {
- fuse_log(FUSE_LOG_ERR, "fuse: copy from pipe: %s\n",
- strerror(-res));
- fuse_ll_clear_pipe(se);
- return res;
- }
- if (res < tmpbuf.size) {
- fuse_log(FUSE_LOG_ERR, "fuse: copy from pipe: short read\n");
- fuse_ll_clear_pipe(se);
- return -EIO;
- }
- assert(res == tmpbuf.size);
-
- } else {
- /* Don't overwrite buf->mem, as that would cause a leak */
- buf->fd = tmpbuf.fd;
- buf->flags = tmpbuf.flags;
- }
- buf->size = tmpbuf.size;
-
- return res;
-
-fallback:
-#endif
- if (!buf->mem) {
- buf->mem = malloc(se->bufsize);
- if (!buf->mem) {
- fuse_log(FUSE_LOG_ERR,
- "fuse: failed to allocate read buffer\n");
- return -ENOMEM;
- }
- }
-
-restart:
- res = read(ch ? ch->fd : se->fd, buf->mem, se->bufsize);
- err = errno;
-
- if (fuse_session_exited(se))
- return 0;
- if (res == -1) {
- /* ENOENT means the operation was interrupted, it's safe
- to restart */
- if (err == ENOENT)
- goto restart;
-
- if (err == ENODEV) {
- /* Filesystem was unmounted, or connection was aborted
- via /sys/fs/fuse/connections */
- fuse_session_exit(se);
- return 0;
- }
- /* Errors occurring during normal operation: EINTR (read
- interrupted), EAGAIN (nonblocking I/O), ENODEV (filesystem
- umounted) */
- if (err != EINTR && err != EAGAIN)
- perror("fuse: reading device");
- return -err;
- }
- if ((size_t) res < sizeof(struct fuse_in_header)) {
- fuse_log(FUSE_LOG_ERR, "short read on fuse device\n");
- return -EIO;
- }
-
- buf->size = res;
-
- return res;
-}
-
struct fuse_session *fuse_session_new(struct fuse_args *args,
const struct fuse_lowlevel_ops *op,
size_t op_size, void *userdata)
{
- int err;
struct fuse_session *se;
- struct mount_opts *mo;
if (sizeof(struct fuse_lowlevel_ops) < op_size) {
fuse_log(FUSE_LOG_ERR, "fuse: warning: library too old, some operations may not work\n");
@@ -2913,20 +2286,6 @@ struct fuse_session *fuse_session_new(struct fuse_args *args,
/* Parse options */
if(fuse_opt_parse(args, se, fuse_ll_opts, NULL) == -1)
goto out2;
- if(se->deny_others) {
- /* Allowing access only by root is done by instructing
- * kernel to allow access by everyone, and then restricting
- * access to root and mountpoint owner in libfuse.
- */
- // We may be adding the option a second time, but
- // that doesn't hurt.
- if(fuse_opt_add_arg(args, "-oallow_other") == -1)
- goto out2;
- }
- mo = parse_mount_opts(args);
- if (mo == NULL)
- goto out3;
-
if(args->argc == 1 &&
args->argv[0][0] == '-') {
fuse_log(FUSE_LOG_ERR, "fuse: warning: argv[0] looks like an option, but "
@@ -2940,9 +2299,6 @@ struct fuse_session *fuse_session_new(struct fuse_args *args,
goto out4;
}
- if (se->debug)
- fuse_log(FUSE_LOG_DEBUG, "FUSE library version: %s\n", PACKAGE_VERSION);
-
se->bufsize = FUSE_MAX_MAX_PAGES * getpagesize() +
FUSE_BUFFER_HEADER_SIZE;
@@ -2952,26 +2308,14 @@ struct fuse_session *fuse_session_new(struct fuse_args *args,
se->notify_ctr = 1;
fuse_mutex_init(&se->lock);
- err = pthread_key_create(&se->pipe_key, fuse_ll_pipe_destructor);
- if (err) {
- fuse_log(FUSE_LOG_ERR, "fuse: failed to create thread specific key: %s\n",
- strerror(err));
- goto out5;
- }
-
memcpy(&se->op, op, op_size);
se->owner = getuid();
se->userdata = userdata;
- se->mo = mo;
return se;
-out5:
- pthread_mutex_destroy(&se->lock);
out4:
fuse_opt_free_args(args);
-out3:
- free(mo);
out2:
free(se);
out1:
@@ -3035,11 +2379,6 @@ int fuse_session_fd(struct fuse_session *se)
void fuse_session_unmount(struct fuse_session *se)
{
- if (se->mountpoint != NULL) {
- fuse_kern_unmount(se->mountpoint, se->fd);
- free(se->mountpoint);
- se->mountpoint = NULL;
- }
}
#ifdef linux
diff --git a/tools/virtiofsd/fuse_lowlevel.h b/tools/virtiofsd/fuse_lowlevel.h
index 18c6363..6b1adfc 100644
--- a/tools/virtiofsd/fuse_lowlevel.h
+++ b/tools/virtiofsd/fuse_lowlevel.h
@@ -31,10 +31,6 @@
#include <sys/statvfs.h>
#include <sys/uio.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/* ----------------------------------------------------------- *
* Miscellaneous definitions *
* ----------------------------------------------------------- */
@@ -1863,14 +1859,12 @@ void fuse_cmdline_help(void);
* ----------------------------------------------------------- */
struct fuse_cmdline_opts {
- int singlethread;
int foreground;
int debug;
int nodefault_subtype;
char *mountpoint;
int show_version;
int show_help;
- int clone_fd;
unsigned int max_idle_threads;
};
@@ -1962,24 +1956,6 @@ int fuse_session_mount(struct fuse_session *se, const char *mountpoint);
int fuse_session_loop(struct fuse_session *se);
/**
- * Enter a multi-threaded event loop.
- *
- * For a description of the return value and the conditions when the
- * event loop exits, refer to the documentation of
- * fuse_session_loop().
- *
- * @param se the session
- * @param config session loop configuration
- * @return see fuse_session_loop()
- */
-#if FUSE_USE_VERSION < 32
-int fuse_session_loop_mt_31(struct fuse_session *se, int clone_fd);
-#define fuse_session_loop_mt(se, clone_fd) fuse_session_loop_mt_31(se, clone_fd)
-#else
-int fuse_session_loop_mt(struct fuse_session *se, struct fuse_loop_config *config);
-#endif
-
-/**
* Flag a session as terminated.
*
* This function is invoked by the POSIX signal handlers, when
@@ -2082,8 +2058,4 @@ void fuse_session_process_buf(struct fuse_session *se,
*/
int fuse_session_receive_buf(struct fuse_session *se, struct fuse_buf *buf);
-#ifdef __cplusplus
-}
-#endif
-
#endif /* FUSE_LOWLEVEL_H_ */
diff --git a/tools/virtiofsd/fuse_opt.h b/tools/virtiofsd/fuse_opt.h
index d8573e7..6910255 100644
--- a/tools/virtiofsd/fuse_opt.h
+++ b/tools/virtiofsd/fuse_opt.h
@@ -14,10 +14,6 @@
* This file defines the option parsing interface of FUSE
*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/**
* Option description
*
@@ -264,8 +260,4 @@ void fuse_opt_free_args(struct fuse_args *args);
*/
int fuse_opt_match(const struct fuse_opt opts[], const char *opt);
-#ifdef __cplusplus
-}
-#endif
-
#endif /* FUSE_OPT_H_ */
diff --git a/tools/virtiofsd/helper.c b/tools/virtiofsd/helper.c
index 64ff7ad..5a2e64c 100644
--- a/tools/virtiofsd/helper.c
+++ b/tools/virtiofsd/helper.c
@@ -41,14 +41,10 @@ static const struct fuse_opt fuse_helper_opts[] = {
FUSE_OPT_KEY("-d", FUSE_OPT_KEY_KEEP),
FUSE_OPT_KEY("debug", FUSE_OPT_KEY_KEEP),
FUSE_HELPER_OPT("-f", foreground),
- FUSE_HELPER_OPT("-s", singlethread),
FUSE_HELPER_OPT("fsname=", nodefault_subtype),
FUSE_OPT_KEY("fsname=", FUSE_OPT_KEY_KEEP),
-#ifndef __FreeBSD__
FUSE_HELPER_OPT("subtype=", nodefault_subtype),
FUSE_OPT_KEY("subtype=", FUSE_OPT_KEY_KEEP),
-#endif
- FUSE_HELPER_OPT("clone_fd", clone_fd),
FUSE_HELPER_OPT("max_idle_threads=%u", max_idle_threads),
FUSE_OPT_END
};
@@ -132,9 +128,6 @@ void fuse_cmdline_help(void)
" -V --version print version\n"
" -d -o debug enable debug output (implies -f)\n"
" -f foreground operation\n"
- " -s disable multi-threaded operation\n"
- " -o clone_fd use separate fuse device fd for each thread\n"
- " (may improve performance)\n"
" -o max_idle_threads the maximum number of idle worker threads\n"
" allowed (default: 10)\n");
}
@@ -171,34 +164,6 @@ static int fuse_helper_opt_proc(void *data, const char *arg, int key,
}
}
-/* Under FreeBSD, there is no subtype option so this
- function actually sets the fsname */
-static int add_default_subtype(const char *progname, struct fuse_args *args)
-{
- int res;
- char *subtype_opt;
-
- const char *basename = strrchr(progname, '/');
- if (basename == NULL)
- basename = progname;
- else if (basename[1] != '\0')
- basename++;
-
- subtype_opt = (char *) malloc(strlen(basename) + 64);
- if (subtype_opt == NULL) {
- fuse_log(FUSE_LOG_ERR, "fuse: memory allocation failed\n");
- return -1;
- }
-#ifdef __FreeBSD__
- sprintf(subtype_opt, "-ofsname=%s", basename);
-#else
- sprintf(subtype_opt, "-osubtype=%s", basename);
-#endif
- res = fuse_opt_add_arg(args, subtype_opt);
- free(subtype_opt);
- return res;
-}
-
int fuse_parse_cmdline(struct fuse_args *args,
struct fuse_cmdline_opts *opts)
{
@@ -210,14 +175,6 @@ int fuse_parse_cmdline(struct fuse_args *args,
fuse_helper_opt_proc) == -1)
return -1;
- /* *Linux*: if neither -o subtype nor -o fsname are specified,
- set subtype to program's basename.
- *FreeBSD*: if fsname is not specified, set to program's
- basename. */
- if (!opts->nodefault_subtype)
- if (add_default_subtype(args->argv[0], args) == -1)
- return -1;
-
return 0;
}
@@ -276,88 +233,6 @@ int fuse_daemonize(int foreground)
return 0;
}
-int fuse_main_real(int argc, char *argv[], const struct fuse_operations *op,
- size_t op_size, void *user_data)
-{
- struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
- struct fuse *fuse;
- struct fuse_cmdline_opts opts;
- int res;
-
- if (fuse_parse_cmdline(&args, &opts) != 0)
- return 1;
-
- if (opts.show_version) {
- printf("FUSE library version %s\n", PACKAGE_VERSION);
- fuse_lowlevel_version();
- res = 0;
- goto out1;
- }
-
- if (opts.show_help) {
- if(args.argv[0][0] != '\0')
- printf("usage: %s [options] <mountpoint>\n\n",
- args.argv[0]);
- printf("FUSE options:\n");
- fuse_cmdline_help();
- fuse_lib_help(&args);
- res = 0;
- goto out1;
- }
-
- if (!opts.show_help &&
- !opts.mountpoint) {
- fuse_log(FUSE_LOG_ERR, "error: no mountpoint specified\n");
- res = 2;
- goto out1;
- }
-
-
- fuse = fuse_new_31(&args, op, op_size, user_data);
- if (fuse == NULL) {
- res = 3;
- goto out1;
- }
-
- if (fuse_mount(fuse,opts.mountpoint) != 0) {
- res = 4;
- goto out2;
- }
-
- if (fuse_daemonize(opts.foreground) != 0) {
- res = 5;
- goto out3;
- }
-
- struct fuse_session *se = fuse_get_session(fuse);
- if (fuse_set_signal_handlers(se) != 0) {
- res = 6;
- goto out3;
- }
-
- if (opts.singlethread)
- res = fuse_loop(fuse);
- else {
- struct fuse_loop_config loop_config;
- loop_config.clone_fd = opts.clone_fd;
- loop_config.max_idle_threads = opts.max_idle_threads;
- res = fuse_loop_mt_32(fuse, &loop_config);
- }
- if (res)
- res = 7;
-
- fuse_remove_signal_handlers(se);
-out3:
- fuse_unmount(fuse);
-out2:
- fuse_destroy(fuse);
-out1:
- free(opts.mountpoint);
- fuse_opt_free_args(&args);
- return res;
-}
-
-
void fuse_apply_conn_info_opts(struct fuse_conn_info_opts *opts,
struct fuse_conn_info *conn)
{
@@ -420,21 +295,3 @@ struct fuse_conn_info_opts* fuse_parse_conn_info_opts(struct fuse_args *args)
}
return opts;
}
-
-int fuse_open_channel(const char *mountpoint, const char* options)
-{
- struct mount_opts *opts = NULL;
- int fd = -1;
- const char *argv[] = { "", "-o", options };
- int argc = sizeof(argv) / sizeof(argv[0]);
- struct fuse_args args = FUSE_ARGS_INIT(argc, (char**) argv);
-
- opts = parse_mount_opts(&args);
- if (opts == NULL)
- return -1;
-
- fd = fuse_kern_mount(mountpoint, opts);
- destroy_mount_opts(opts);
-
- return fd;
-}
diff --git a/tools/virtiofsd/passthrough_helpers.h b/tools/virtiofsd/passthrough_helpers.h
index 6b77c33..7c5f561 100644
--- a/tools/virtiofsd/passthrough_helpers.h
+++ b/tools/virtiofsd/passthrough_helpers.h
@@ -42,32 +42,6 @@ static int mknod_wrapper(int dirfd, const char *path, const char *link,
res = symlinkat(link, dirfd, path);
} else if (S_ISFIFO(mode)) {
res = mkfifoat(dirfd, path, mode);
-#ifdef __FreeBSD__
- } else if (S_ISSOCK(mode)) {
- struct sockaddr_un su;
- int fd;
-
- if (strlen(path) >= sizeof(su.sun_path)) {
- errno = ENAMETOOLONG;
- return -1;
- }
- fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (fd >= 0) {
- /*
- * We must bind the socket to the underlying file
- * system to create the socket file, even though
- * we'll never listen on this socket.
- */
- su.sun_family = AF_UNIX;
- strncpy(su.sun_path, path, sizeof(su.sun_path));
- res = bindat(dirfd, fd, (struct sockaddr*)&su,
- sizeof(su));
- if (res == 0)
- close(fd);
- } else {
- res = -1;
- }
-#endif
} else {
res = mknodat(dirfd, path, mode, rdev);
}
diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
index e1a6056..e5f7115 100644
--- a/tools/virtiofsd/passthrough_ll.c
+++ b/tools/virtiofsd/passthrough_ll.c
@@ -1240,7 +1240,6 @@ int main(int argc, char *argv[])
ret = 0;
goto err_out1;
} else if (opts.show_version) {
- printf("FUSE library version %s\n", fuse_pkgversion());
fuse_lowlevel_version();
ret = 0;
goto err_out1;
--
1.8.3.1