qemu-kvm/kvm-virtiofsd-remove-unused-notify-reply-support.patch
Miroslav Rezanina a5bd08701a * Fri Jan 31 2020 Miroslav Rezanina <mrezanin@redhat.com> - 4.2.0-8.el8
- kvm-target-arm-arch_dump-Add-SVE-notes.patch [bz#1725084]
- kvm-vhost-Add-names-to-section-rounded-warning.patch [bz#1779041]
- kvm-vhost-Only-align-sections-for-vhost-user.patch [bz#1779041]
- kvm-vhost-coding-style-fix.patch [bz#1779041]
- kvm-virtio-fs-fix-MSI-X-nvectors-calculation.patch [bz#1694164]
- kvm-vhost-user-fs-remove-vhostfd-property.patch [bz#1694164]
- kvm-build-rename-CONFIG_LIBCAP-to-CONFIG_LIBCAP_NG.patch [bz#1694164]
- kvm-virtiofsd-Pull-in-upstream-headers.patch [bz#1694164]
- kvm-virtiofsd-Pull-in-kernel-s-fuse.h.patch [bz#1694164]
- kvm-virtiofsd-Add-auxiliary-.c-s.patch [bz#1694164]
- kvm-virtiofsd-Add-fuse_lowlevel.c.patch [bz#1694164]
- kvm-virtiofsd-Add-passthrough_ll.patch [bz#1694164]
- kvm-virtiofsd-Trim-down-imported-files.patch [bz#1694164]
- kvm-virtiofsd-Format-imported-files-to-qemu-style.patch [bz#1694164]
- kvm-virtiofsd-remove-mountpoint-dummy-argument.patch [bz#1694164]
- kvm-virtiofsd-remove-unused-notify-reply-support.patch [bz#1694164]
- kvm-virtiofsd-Remove-unused-enum-fuse_buf_copy_flags.patch [bz#1694164]
- kvm-virtiofsd-Fix-fuse_daemonize-ignored-return-values.patch [bz#1694164]
- kvm-virtiofsd-Fix-common-header-and-define-for-QEMU-buil.patch [bz#1694164]
- kvm-virtiofsd-Trim-out-compatibility-code.patch [bz#1694164]
- kvm-vitriofsd-passthrough_ll-fix-fallocate-ifdefs.patch [bz#1694164]
- kvm-virtiofsd-Make-fsync-work-even-if-only-inode-is-pass.patch [bz#1694164]
- kvm-virtiofsd-Add-options-for-virtio.patch [bz#1694164]
- kvm-virtiofsd-add-o-source-PATH-to-help-output.patch [bz#1694164]
- kvm-virtiofsd-Open-vhost-connection-instead-of-mounting.patch [bz#1694164]
- kvm-virtiofsd-Start-wiring-up-vhost-user.patch [bz#1694164]
- kvm-virtiofsd-Add-main-virtio-loop.patch [bz#1694164]
- kvm-virtiofsd-get-set-features-callbacks.patch [bz#1694164]
- kvm-virtiofsd-Start-queue-threads.patch [bz#1694164]
- kvm-virtiofsd-Poll-kick_fd-for-queue.patch [bz#1694164]
- kvm-virtiofsd-Start-reading-commands-from-queue.patch [bz#1694164]
- kvm-virtiofsd-Send-replies-to-messages.patch [bz#1694164]
- kvm-virtiofsd-Keep-track-of-replies.patch [bz#1694164]
- kvm-virtiofsd-Add-Makefile-wiring-for-virtiofsd-contrib.patch [bz#1694164]
- kvm-virtiofsd-Fast-path-for-virtio-read.patch [bz#1694164]
- kvm-virtiofsd-add-fd-FDNUM-fd-passing-option.patch [bz#1694164]
- kvm-virtiofsd-make-f-foreground-the-default.patch [bz#1694164]
- kvm-virtiofsd-add-vhost-user.json-file.patch [bz#1694164]
- kvm-virtiofsd-add-print-capabilities-option.patch [bz#1694164]
- kvm-virtiofs-Add-maintainers-entry.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-create-new-files-in-caller-.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-add-lo_map-for-ino-fh-indir.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-add-ino_map-to-hide-lo_inod.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-add-dirp_map-to-hide-lo_dir.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-add-fd_map-to-hide-file-des.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-add-fallback-for-racy-ops.patch [bz#1694164]
- kvm-virtiofsd-validate-path-components.patch [bz#1694164]
- kvm-virtiofsd-Plumb-fuse_bufvec-through-to-do_write_buf.patch [bz#1694164]
- kvm-virtiofsd-Pass-write-iov-s-all-the-way-through.patch [bz#1694164]
- kvm-virtiofsd-add-fuse_mbuf_iter-API.patch [bz#1694164]
- kvm-virtiofsd-validate-input-buffer-sizes-in-do_write_bu.patch [bz#1694164]
- kvm-virtiofsd-check-input-buffer-size-in-fuse_lowlevel.c.patch [bz#1694164]
- kvm-virtiofsd-prevent-.-escape-in-lo_do_lookup.patch [bz#1694164]
- kvm-virtiofsd-prevent-.-escape-in-lo_do_readdir.patch [bz#1694164]
- kvm-virtiofsd-use-proc-self-fd-O_PATH-file-descriptor.patch [bz#1694164]
- kvm-virtiofsd-sandbox-mount-namespace.patch [bz#1694164]
- kvm-virtiofsd-move-to-an-empty-network-namespace.patch [bz#1694164]
- kvm-virtiofsd-move-to-a-new-pid-namespace.patch [bz#1694164]
- kvm-virtiofsd-add-seccomp-whitelist.patch [bz#1694164]
- kvm-virtiofsd-Parse-flag-FUSE_WRITE_KILL_PRIV.patch [bz#1694164]
- kvm-virtiofsd-cap-ng-helpers.patch [bz#1694164]
- kvm-virtiofsd-Drop-CAP_FSETID-if-client-asked-for-it.patch [bz#1694164]
- kvm-virtiofsd-set-maximum-RLIMIT_NOFILE-limit.patch [bz#1694164]
- kvm-virtiofsd-fix-libfuse-information-leaks.patch [bz#1694164]
- kvm-virtiofsd-add-syslog-command-line-option.patch [bz#1694164]
- kvm-virtiofsd-print-log-only-when-priority-is-high-enoug.patch [bz#1694164]
- kvm-virtiofsd-Add-ID-to-the-log-with-FUSE_LOG_DEBUG-leve.patch [bz#1694164]
- kvm-virtiofsd-Add-timestamp-to-the-log-with-FUSE_LOG_DEB.patch [bz#1694164]
- kvm-virtiofsd-Handle-reinit.patch [bz#1694164]
- kvm-virtiofsd-Handle-hard-reboot.patch [bz#1694164]
- kvm-virtiofsd-Kill-threads-when-queues-are-stopped.patch [bz#1694164]
- kvm-vhost-user-Print-unexpected-slave-message-types.patch [bz#1694164]
- kvm-contrib-libvhost-user-Protect-slave-fd-with-mutex.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-add-renameat2-support.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-disable-readdirplus-on-cach.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-control-readdirplus.patch [bz#1694164]
- kvm-virtiofsd-rename-unref_inode-to-unref_inode_lolocked.patch [bz#1694164]
- kvm-virtiofsd-fail-when-parent-inode-isn-t-known-in-lo_d.patch [bz#1694164]
- kvm-virtiofsd-extract-root-inode-init-into-setup_root.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-clean-up-cache-related-opti.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-use-hashtable.patch [bz#1694164]
- kvm-virtiofsd-Clean-up-inodes-on-destroy.patch [bz#1694164]
- kvm-virtiofsd-support-nanosecond-resolution-for-file-tim.patch [bz#1694164]
- kvm-virtiofsd-fix-error-handling-in-main.patch [bz#1694164]
- kvm-virtiofsd-cleanup-allocated-resource-in-se.patch [bz#1694164]
- kvm-virtiofsd-fix-memory-leak-on-lo.source.patch [bz#1694164]
- kvm-virtiofsd-add-helper-for-lo_data-cleanup.patch [bz#1694164]
- kvm-virtiofsd-Prevent-multiply-running-with-same-vhost_u.patch [bz#1694164]
- kvm-virtiofsd-enable-PARALLEL_DIROPS-during-INIT.patch [bz#1694164]
- kvm-virtiofsd-fix-incorrect-error-handling-in-lo_do_look.patch [bz#1694164]
- kvm-Virtiofsd-fix-memory-leak-on-fuse-queueinfo.patch [bz#1694164]
- kvm-virtiofsd-Support-remote-posix-locks.patch [bz#1694164]
- kvm-virtiofsd-use-fuse_lowlevel_is_virtio-in-fuse_sessio.patch [bz#1694164]
- kvm-virtiofsd-prevent-fv_queue_thread-vs-virtio_loop-rac.patch [bz#1694164]
- kvm-virtiofsd-make-lo_release-atomic.patch [bz#1694164]
- kvm-virtiofsd-prevent-races-with-lo_dirp_put.patch [bz#1694164]
- kvm-virtiofsd-rename-inode-refcount-to-inode-nlookup.patch [bz#1694164]
- kvm-libvhost-user-Fix-some-memtable-remap-cases.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-fix-refcounting-on-remove-r.patch [bz#1694164]
- kvm-virtiofsd-introduce-inode-refcount-to-prevent-use-af.patch [bz#1694164]
- kvm-virtiofsd-do-not-always-set-FUSE_FLOCK_LOCKS.patch [bz#1694164]
- kvm-virtiofsd-convert-more-fprintf-and-perror-to-use-fus.patch [bz#1694164]
- kvm-virtiofsd-Reset-O_DIRECT-flag-during-file-open.patch [bz#1694164]
- kvm-virtiofsd-Fix-data-corruption-with-O_APPEND-write-in.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-Use-cache_readdir-for-direc.patch [bz#1694164]
- kvm-virtiofsd-add-definition-of-fuse_buf_writev.patch [bz#1694164]
- kvm-virtiofsd-use-fuse_buf_writev-to-replace-fuse_buf_wr.patch [bz#1694164]
- kvm-virtiofsd-process-requests-in-a-thread-pool.patch [bz#1694164]
- kvm-virtiofsd-prevent-FUSE_INIT-FUSE_DESTROY-races.patch [bz#1694164]
- kvm-virtiofsd-fix-lo_destroy-resource-leaks.patch [bz#1694164]
- kvm-virtiofsd-add-thread-pool-size-NUM-option.patch [bz#1694164]
- kvm-virtiofsd-Convert-lo_destroy-to-take-the-lo-mutex-lo.patch [bz#1694164]
- kvm-virtiofsd-passthrough_ll-Pass-errno-to-fuse_reply_er.patch [bz#1694164]
- kvm-virtiofsd-stop-all-queue-threads-on-exit-in-virtio_l.patch [bz#1694164]
- kvm-virtiofsd-add-some-options-to-the-help-message.patch [bz#1694164]
- kvm-redhat-ship-virtiofsd-vhost-user-device-backend.patch [bz#1694164]
- Resolves: bz#1694164
  (virtio-fs: host<->guest shared file system (qemu))
- Resolves: bz#1725084
  (aarch64: support dumping SVE registers)
- Resolves: bz#1779041
  (netkvm: no connectivity Windows guest with q35 + hugepages + vhost + hv_synic)
2020-01-31 11:12:06 +01:00

295 lines
9.8 KiB
Diff

From e5534c0d4b866f61dbafa8d2422a24ab956189c1 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:00:47 +0100
Subject: [PATCH 016/116] virtiofsd: remove unused notify reply support
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: <20200127190227.40942-13-dgilbert@redhat.com>
Patchwork-id: 93467
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 012/112] virtiofsd: remove unused notify reply support
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: Stefan Hajnoczi <stefanha@redhat.com>
Notify reply support is unused by virtiofsd. The code would need to be
updated to validate input buffer sizes. Remove this unused code since
changes to it are untestable.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit 64c6f408a29ef03e9b8da9f5a5d8fd511b0d801e)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
tools/virtiofsd/fuse_lowlevel.c | 147 +---------------------------------------
tools/virtiofsd/fuse_lowlevel.h | 47 -------------
2 files changed, 1 insertion(+), 193 deletions(-)
diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
index 2f32c68..eb0ec49 100644
--- a/tools/virtiofsd/fuse_lowlevel.c
+++ b/tools/virtiofsd/fuse_lowlevel.c
@@ -31,12 +31,6 @@
#define PARAM(inarg) (((char *)(inarg)) + sizeof(*(inarg)))
#define OFFSET_MAX 0x7fffffffffffffffLL
-#define container_of(ptr, type, member) \
- ({ \
- const typeof(((type *)0)->member) *__mptr = (ptr); \
- (type *)((char *)__mptr - offsetof(type, member)); \
- })
-
struct fuse_pollhandle {
uint64_t kh;
struct fuse_session *se;
@@ -1862,52 +1856,6 @@ static void do_destroy(fuse_req_t req, fuse_ino_t nodeid, const void *inarg)
send_reply_ok(req, NULL, 0);
}
-static void list_del_nreq(struct fuse_notify_req *nreq)
-{
- struct fuse_notify_req *prev = nreq->prev;
- struct fuse_notify_req *next = nreq->next;
- prev->next = next;
- next->prev = prev;
-}
-
-static void list_add_nreq(struct fuse_notify_req *nreq,
- struct fuse_notify_req *next)
-{
- struct fuse_notify_req *prev = next->prev;
- nreq->next = next;
- nreq->prev = prev;
- prev->next = nreq;
- next->prev = nreq;
-}
-
-static void list_init_nreq(struct fuse_notify_req *nreq)
-{
- nreq->next = nreq;
- nreq->prev = nreq;
-}
-
-static void do_notify_reply(fuse_req_t req, fuse_ino_t nodeid,
- const void *inarg, const struct fuse_buf *buf)
-{
- struct fuse_session *se = req->se;
- struct fuse_notify_req *nreq;
- struct fuse_notify_req *head;
-
- pthread_mutex_lock(&se->lock);
- head = &se->notify_list;
- for (nreq = head->next; nreq != head; nreq = nreq->next) {
- if (nreq->unique == req->unique) {
- list_del_nreq(nreq);
- break;
- }
- }
- pthread_mutex_unlock(&se->lock);
-
- if (nreq != head) {
- nreq->reply(nreq, req, nodeid, inarg, buf);
- }
-}
-
static int send_notify_iov(struct fuse_session *se, int notify_code,
struct iovec *iov, int count)
{
@@ -2059,95 +2007,6 @@ int fuse_lowlevel_notify_store(struct fuse_session *se, fuse_ino_t ino,
return res;
}
-struct fuse_retrieve_req {
- struct fuse_notify_req nreq;
- void *cookie;
-};
-
-static void fuse_ll_retrieve_reply(struct fuse_notify_req *nreq, fuse_req_t req,
- fuse_ino_t ino, const void *inarg,
- const struct fuse_buf *ibuf)
-{
- struct fuse_session *se = req->se;
- struct fuse_retrieve_req *rreq =
- container_of(nreq, struct fuse_retrieve_req, nreq);
- const struct fuse_notify_retrieve_in *arg = inarg;
- struct fuse_bufvec bufv = {
- .buf[0] = *ibuf,
- .count = 1,
- };
-
- if (!(bufv.buf[0].flags & FUSE_BUF_IS_FD)) {
- bufv.buf[0].mem = PARAM(arg);
- }
-
- bufv.buf[0].size -=
- sizeof(struct fuse_in_header) + sizeof(struct fuse_notify_retrieve_in);
-
- if (bufv.buf[0].size < arg->size) {
- fuse_log(FUSE_LOG_ERR, "fuse: retrieve reply: buffer size too small\n");
- fuse_reply_none(req);
- goto out;
- }
- bufv.buf[0].size = arg->size;
-
- if (se->op.retrieve_reply) {
- se->op.retrieve_reply(req, rreq->cookie, ino, arg->offset, &bufv);
- } else {
- fuse_reply_none(req);
- }
-out:
- free(rreq);
-}
-
-int fuse_lowlevel_notify_retrieve(struct fuse_session *se, fuse_ino_t ino,
- size_t size, off_t offset, void *cookie)
-{
- struct fuse_notify_retrieve_out outarg;
- struct iovec iov[2];
- struct fuse_retrieve_req *rreq;
- int err;
-
- if (!se) {
- return -EINVAL;
- }
-
- if (se->conn.proto_major < 6 || se->conn.proto_minor < 15) {
- return -ENOSYS;
- }
-
- rreq = malloc(sizeof(*rreq));
- if (rreq == NULL) {
- return -ENOMEM;
- }
-
- pthread_mutex_lock(&se->lock);
- rreq->cookie = cookie;
- rreq->nreq.unique = se->notify_ctr++;
- rreq->nreq.reply = fuse_ll_retrieve_reply;
- list_add_nreq(&rreq->nreq, &se->notify_list);
- pthread_mutex_unlock(&se->lock);
-
- outarg.notify_unique = rreq->nreq.unique;
- outarg.nodeid = ino;
- outarg.offset = offset;
- outarg.size = size;
- outarg.padding = 0;
-
- iov[1].iov_base = &outarg;
- iov[1].iov_len = sizeof(outarg);
-
- err = send_notify_iov(se, FUSE_NOTIFY_RETRIEVE, iov, 2);
- if (err) {
- pthread_mutex_lock(&se->lock);
- list_del_nreq(&rreq->nreq);
- pthread_mutex_unlock(&se->lock);
- free(rreq);
- }
-
- return err;
-}
-
void *fuse_req_userdata(fuse_req_t req)
{
return req->se->userdata;
@@ -2226,7 +2085,7 @@ static struct {
[FUSE_POLL] = { do_poll, "POLL" },
[FUSE_FALLOCATE] = { do_fallocate, "FALLOCATE" },
[FUSE_DESTROY] = { do_destroy, "DESTROY" },
- [FUSE_NOTIFY_REPLY] = { (void *)1, "NOTIFY_REPLY" },
+ [FUSE_NOTIFY_REPLY] = { NULL, "NOTIFY_REPLY" },
[FUSE_BATCH_FORGET] = { do_batch_forget, "BATCH_FORGET" },
[FUSE_READDIRPLUS] = { do_readdirplus, "READDIRPLUS" },
[FUSE_RENAME2] = { do_rename2, "RENAME2" },
@@ -2333,8 +2192,6 @@ void fuse_session_process_buf_int(struct fuse_session *se,
inarg = (void *)&in[1];
if (in->opcode == FUSE_WRITE && se->op.write_buf) {
do_write_buf(req, in->nodeid, inarg, buf);
- } else if (in->opcode == FUSE_NOTIFY_REPLY) {
- do_notify_reply(req, in->nodeid, inarg, buf);
} else {
fuse_ll_ops[in->opcode].func(req, in->nodeid, inarg);
}
@@ -2437,8 +2294,6 @@ struct fuse_session *fuse_session_new(struct fuse_args *args,
list_init_req(&se->list);
list_init_req(&se->interrupts);
- list_init_nreq(&se->notify_list);
- se->notify_ctr = 1;
fuse_mutex_init(&se->lock);
memcpy(&se->op, op, op_size);
diff --git a/tools/virtiofsd/fuse_lowlevel.h b/tools/virtiofsd/fuse_lowlevel.h
index 8d8909b..12a84b4 100644
--- a/tools/virtiofsd/fuse_lowlevel.h
+++ b/tools/virtiofsd/fuse_lowlevel.h
@@ -1085,21 +1085,6 @@ struct fuse_lowlevel_ops {
off_t off, struct fuse_file_info *fi);
/**
- * Callback function for the retrieve request
- *
- * Valid replies:
- * fuse_reply_none
- *
- * @param req request handle
- * @param cookie user data supplied to fuse_lowlevel_notify_retrieve()
- * @param ino the inode number supplied to fuse_lowlevel_notify_retrieve()
- * @param offset the offset supplied to fuse_lowlevel_notify_retrieve()
- * @param bufv the buffer containing the returned data
- */
- void (*retrieve_reply)(fuse_req_t req, void *cookie, fuse_ino_t ino,
- off_t offset, struct fuse_bufvec *bufv);
-
- /**
* Forget about multiple inodes
*
* See description of the forget function for more
@@ -1726,38 +1711,6 @@ int fuse_lowlevel_notify_delete(struct fuse_session *se, fuse_ino_t parent,
int fuse_lowlevel_notify_store(struct fuse_session *se, fuse_ino_t ino,
off_t offset, struct fuse_bufvec *bufv,
enum fuse_buf_copy_flags flags);
-/**
- * Retrieve data from the kernel buffers
- *
- * Retrieve data in the kernel buffers belonging to the given inode.
- * If successful then the retrieve_reply() method will be called with
- * the returned data.
- *
- * Only present pages are returned in the retrieve reply. Retrieving
- * stops when it finds a non-present page and only data prior to that
- * is returned.
- *
- * If this function returns an error, then the retrieve will not be
- * completed and no reply will be sent.
- *
- * This function doesn't change the dirty state of pages in the kernel
- * buffer. For dirty pages the write() method will be called
- * regardless of having been retrieved previously.
- *
- * Added in FUSE protocol version 7.15. If the kernel does not support
- * this (or a newer) version, the function will return -ENOSYS and do
- * nothing.
- *
- * @param se the session object
- * @param ino the inode number
- * @param size the number of bytes to retrieve
- * @param offset the starting offset into the file to retrieve from
- * @param cookie user data to supply to the reply callback
- * @return zero for success, -errno for failure
- */
-int fuse_lowlevel_notify_retrieve(struct fuse_session *se, fuse_ino_t ino,
- size_t size, off_t offset, void *cookie);
-
/*
* Utility functions
--
1.8.3.1