diff mbox series

[v2,063/109] virtiofsd: Handle reinit

Message ID	20200121122433.50803-64-dgilbert@redhat.com
State	New
Headers	show Return-Path: <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> From: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com> To: qemu-devel@nongnu.org, stefanha@redhat.com, vgoyal@redhat.com, berrange@redhat.com, slp@redhat.com, philmd@redhat.com Subject: [PATCH v2 063/109] virtiofsd: Handle reinit Date: Tue, 21 Jan 2020 12:23:47 +0000 Message-Id: <20200121122433.50803-64-dgilbert@redhat.com> In-Reply-To: <20200121122433.50803-1-dgilbert@redhat.com> References: <20200121122433.50803-1-dgilbert@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: list Cc: m.mizuma@jp.fujitsu.com, misono.tomohiro@jp.fujitsu.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>
Series	virtiofs daemon [all] \| expand [v2,000/109] virtiofs daemon [all] [v2,001/109] virtiofsd: Pull in upstream headers [v2,002/109] virtiofsd: Pull in kernel's fuse.h [v2,003/109] virtiofsd: Add auxiliary .c's [v2,004/109] virtiofsd: Add fuse_lowlevel.c [v2,005/109] virtiofsd: Add passthrough_ll [v2,006/109] virtiofsd: Trim down imported files [v2,007/109] virtiofsd: Format imported files to qemu style [v2,008/109] virtiofsd: remove mountpoint dummy argument [v2,009/109] virtiofsd: remove unused notify reply support [v2,010/109] virtiofsd: Fix fuse_daemonize ignored return values [v2,011/109] virtiofsd: Fix common header and define for QEMU builds [v2,012/109] virtiofsd: Trim out compatibility code [v2,013/109] vitriofsd/passthrough_ll: fix fallocate() ifdefs [v2,014/109] virtiofsd: Make fsync work even if only inode is passed in [v2,015/109] virtiofsd: Add options for virtio [v2,016/109] virtiofsd: add -o source=PATH to help output [v2,017/109] virtiofsd: Open vhost connection instead of mounting [v2,018/109] virtiofsd: Start wiring up vhost-user [v2,019/109] virtiofsd: Add main virtio loop [v2,020/109] virtiofsd: get/set features callbacks [v2,021/109] virtiofsd: Start queue threads [v2,022/109] virtiofsd: Poll kick_fd for queue [v2,023/109] virtiofsd: Start reading commands from queue [v2,024/109] virtiofsd: Send replies to messages [v2,025/109] virtiofsd: Keep track of replies [v2,026/109] virtiofsd: Add Makefile wiring for virtiofsd contrib [v2,027/109] virtiofsd: Fast path for virtio read [v2,028/109] virtiofsd: add --fd=FDNUM fd passing option [v2,029/109] virtiofsd: make -f (foreground) the default [v2,030/109] virtiofsd: add vhost-user.json file [v2,031/109] virtiofsd: add --print-capabilities option [v2,032/109] virtiofs: Add maintainers entry [v2,033/109] virtiofsd: passthrough_ll: create new files in caller's context [v2,034/109] virtiofsd: passthrough_ll: add lo_map for ino/fh indirection [v2,035/109] virtiofsd: passthrough_ll: add ino_map to hide lo_inode pointers [v2,036/109] virtiofsd: passthrough_ll: add dirp_map to hide lo_dirp pointers [v2,037/109] virtiofsd: passthrough_ll: add fd_map to hide file descriptors [v2,038/109] virtiofsd: passthrough_ll: add fallback for racy ops [v2,039/109] virtiofsd: validate path components [v2,040/109] virtiofsd: Plumb fuse_bufvec through to do_write_buf [v2,041/109] virtiofsd: Pass write iov's all the way through [v2,042/109] virtiofsd: add fuse_mbuf_iter API [v2,043/109] virtiofsd: validate input buffer sizes in do_write_buf() [v2,044/109] virtiofsd: check input buffer size in fuse_lowlevel.c ops [v2,045/109] virtiofsd: prevent ".." escape in lo_do_lookup() [v2,046/109] virtiofsd: prevent ".." escape in lo_do_readdir() [v2,047/109] virtiofsd: use /proc/self/fd/ O_PATH file descriptor [v2,048/109] virtiofsd: sandbox mount namespace [v2,049/109] virtiofsd: move to an empty network namespace [v2,050/109] virtiofsd: move to a new pid namespace [v2,051/109] virtiofsd: add seccomp whitelist [v2,052/109] virtiofsd: Parse flag FUSE_WRITE_KILL_PRIV [v2,053/109] virtiofsd: cap-ng helpers [v2,054/109] virtiofsd: Drop CAP_FSETID if client asked for it [v2,055/109] virtiofsd: set maximum RLIMIT_NOFILE limit [v2,056/109] virtiofsd: fix libfuse information leaks [v2,057/109] docs: Add docs/tools [v2,058/109] virtiofsd: add security guide document [v2,059/109] virtiofsd: add --syslog command-line option [v2,060/109] virtiofsd: print log only when priority is high enough [v2,061/109] virtiofsd: Add ID to the log with FUSE_LOG_DEBUG level [v2,062/109] virtiofsd: Add timestamp to the log with FUSE_LOG_DEBUG level [v2,063/109] virtiofsd: Handle reinit [v2,064/109] virtiofsd: Handle hard reboot [v2,065/109] virtiofsd: Kill threads when queues are stopped [v2,066/109] vhost-user: Print unexpected slave message types [v2,067/109] contrib/libvhost-user: Protect slave fd with mutex [v2,068/109] virtiofsd: passthrough_ll: add renameat2 support [v2,069/109] virtiofsd: passthrough_ll: disable readdirplus on cache=never [v2,070/109] virtiofsd: passthrough_ll: control readdirplus [v2,071/109] virtiofsd: rename unref_inode() to unref_inode_lolocked() [v2,072/109] virtiofsd: fail when parent inode isn't known in lo_do_lookup() [v2,073/109] virtiofsd: extract root inode init into setup_root() [v2,074/109] virtiofsd: passthrough_ll: clean up cache related options [v2,075/109] virtiofsd: passthrough_ll: use hashtable [v2,076/109] virtiofsd: Clean up inodes on destroy [v2,077/109] virtiofsd: support nanosecond resolution for file timestamp [v2,078/109] virtiofsd: fix error handling in main() [v2,079/109] virtiofsd: cleanup allocated resource in se [v2,080/109] virtiofsd: fix memory leak on lo.source [v2,081/109] virtiofsd: add helper for lo_data cleanup [v2,082/109] virtiofsd: Prevent multiply running with same vhost_user_socket [v2,083/109] virtiofsd: enable PARALLEL_DIROPS during INIT [v2,084/109] virtiofsd: fix incorrect error handling in lo_do_lookup [v2,085/109] Virtiofsd: fix memory leak on fuse queueinfo [v2,086/109] virtiofsd: Support remote posix locks [v2,087/109] virtiofsd: use fuse_lowlevel_is_virtio() in fuse_session_destroy() [v2,088/109] virtiofsd: prevent fv_queue_thread() vs virtio_loop() races [v2,089/109] virtiofsd: make lo_release() atomic [v2,090/109] virtiofsd: prevent races with lo_dirp_put() [v2,091/109] virtiofsd: rename inode->refcount to inode->nlookup [v2,092/109] libvhost-user: Fix some memtable remap cases [v2,093/109] virtiofsd: add man page [v2,094/109] virtiofsd: passthrough_ll: fix refcounting on remove/rename [v2,095/109] virtiofsd: introduce inode refcount to prevent use-after-free [v2,096/109] virtiofsd: do not always set FUSE_FLOCK_LOCKS [v2,097/109] virtiofsd: convert more fprintf and perror to use fuse log infra [v2,098/109] virtiofsd: Reset O_DIRECT flag during file open [v2,099/109] virtiofsd: Fix data corruption with O_APPEND write in writeback mode [v2,100/109] virtiofsd: add definition of fuse_buf_writev() [v2,101/109] virtiofsd: use fuse_buf_writev to replace fuse_buf_write for better performance [v2,102/109] virtiofsd: process requests in a thread pool [v2,103/109] virtiofsd: prevent FUSE_INIT/FUSE_DESTROY races [v2,104/109] virtiofsd: fix lo_destroy() resource leaks [v2,105/109] virtiofsd: add --thread-pool-size=NUM option [v2,106/109] virtiofsd: Convert lo_destroy to take the lo->mutex lock itself [v2,107/109] virtiofsd/passthrough_ll: Pass errno to fuse_reply_err() [v2,108/109] virtiofsd: stop all queue threads on exit in virtio_loop() [v2,109/109] virtiofsd: add some options to the help message

Commit Message

Dr. David Alan Gilbert Jan. 21, 2020, 12:23 p.m. UTC

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Allow init->destroy->init  for mount->umount->mount

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
 tools/virtiofsd/fuse_lowlevel.c | 2 ++
 1 file changed, 2 insertions(+)

diff mbox series

Patch

diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
index da2e618dd1..5565f78208 100644
--- a/tools/virtiofsd/fuse_lowlevel.c
+++ b/tools/virtiofsd/fuse_lowlevel.c
@@ -2029,6 +2029,7 @@  static void do_init(fuse_req_t req, fuse_ino_t nodeid,
     }
 
     se->got_init = 1;
+    se->got_destroy = 0;
     if (se->op.init) {
         se->op.init(se->userdata, &se->conn);
     }
@@ -2131,6 +2132,7 @@  static void do_destroy(fuse_req_t req, fuse_ino_t nodeid,
     (void)iter;
 
     se->got_destroy = 1;
+    se->got_init = 0;
     if (se->op.destroy) {
         se->op.destroy(se->userdata);
     }