Commit 5fec8bdb authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: clean up annotations of fc->lock
  fuse: fix sparse warning in ioctl
  fuse: update interface version
  fuse: add fuse_conn->release()
  fuse: separate out fuse_conn_init() from new_conn()
  fuse: add fuse_ prefix to several functions
  fuse: implement poll support
  fuse: implement unsolicited notification
  fuse: add file kernel handle
  fuse: implement ioctl support
  fuse: don't let fuse_req->end() put the base reference
  fuse: move FUSE_MINOR to miscdevice.h
  fuse: style fixes
parents 59e3af21 5d9ec854
/*
FUSE: Filesystem in Userspace
Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
......@@ -48,11 +48,13 @@ static ssize_t fuse_conn_waiting_read(struct file *file, char __user *buf,
size_t size;
if (!*ppos) {
long value;
struct fuse_conn *fc = fuse_ctl_file_conn_get(file);
if (!fc)
return 0;
file->private_data=(void *)(long)atomic_read(&fc->num_waiting);
value = atomic_read(&fc->num_waiting);
file->private_data = (void *)value;
fuse_conn_put(fc);
}
size = sprintf(tmp, "%ld\n", (long)file->private_data);
......
/*
FUSE: Filesystem in Userspace
Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
......@@ -269,7 +269,7 @@ static void flush_bg_queue(struct fuse_conn *fc)
* Called with fc->lock, unlocks it
*/
static void request_end(struct fuse_conn *fc, struct fuse_req *req)
__releases(fc->lock)
__releases(&fc->lock)
{
void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;
req->end = NULL;
......@@ -293,13 +293,13 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
wake_up(&req->waitq);
if (end)
end(fc, req);
else
fuse_put_request(fc, req);
fuse_put_request(fc, req);
}
static void wait_answer_interruptible(struct fuse_conn *fc,
struct fuse_req *req)
__releases(fc->lock) __acquires(fc->lock)
__releases(&fc->lock)
__acquires(&fc->lock)
{
if (signal_pending(current))
return;
......@@ -317,7 +317,8 @@ static void queue_interrupt(struct fuse_conn *fc, struct fuse_req *req)
}
static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
__releases(fc->lock) __acquires(fc->lock)
__releases(&fc->lock)
__acquires(&fc->lock)
{
if (!fc->no_interrupt) {
/* Any signal may interrupt this */
......@@ -380,7 +381,7 @@ static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
}
}
void request_send(struct fuse_conn *fc, struct fuse_req *req)
void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
{
req->isreply = 1;
spin_lock(&fc->lock);
......@@ -399,8 +400,8 @@ void request_send(struct fuse_conn *fc, struct fuse_req *req)
spin_unlock(&fc->lock);
}
static void request_send_nowait_locked(struct fuse_conn *fc,
struct fuse_req *req)
static void fuse_request_send_nowait_locked(struct fuse_conn *fc,
struct fuse_req *req)
{
req->background = 1;
fc->num_background++;
......@@ -414,11 +415,11 @@ static void request_send_nowait_locked(struct fuse_conn *fc,
flush_bg_queue(fc);
}
static void request_send_nowait(struct fuse_conn *fc, struct fuse_req *req)
static void fuse_request_send_nowait(struct fuse_conn *fc, struct fuse_req *req)
{
spin_lock(&fc->lock);
if (fc->connected) {
request_send_nowait_locked(fc, req);
fuse_request_send_nowait_locked(fc, req);
spin_unlock(&fc->lock);
} else {
req->out.h.error = -ENOTCONN;
......@@ -426,16 +427,16 @@ static void request_send_nowait(struct fuse_conn *fc, struct fuse_req *req)
}
}
void request_send_noreply(struct fuse_conn *fc, struct fuse_req *req)
void fuse_request_send_noreply(struct fuse_conn *fc, struct fuse_req *req)
{
req->isreply = 0;
request_send_nowait(fc, req);
fuse_request_send_nowait(fc, req);
}
void request_send_background(struct fuse_conn *fc, struct fuse_req *req)
void fuse_request_send_background(struct fuse_conn *fc, struct fuse_req *req)
{
req->isreply = 1;
request_send_nowait(fc, req);
fuse_request_send_nowait(fc, req);
}
/*
......@@ -443,10 +444,11 @@ void request_send_background(struct fuse_conn *fc, struct fuse_req *req)
*
* fc->connected must have been checked previously
*/
void request_send_background_locked(struct fuse_conn *fc, struct fuse_req *req)
void fuse_request_send_background_locked(struct fuse_conn *fc,
struct fuse_req *req)
{
req->isreply = 1;
request_send_nowait_locked(fc, req);
fuse_request_send_nowait_locked(fc, req);
}
/*
......@@ -539,8 +541,8 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
BUG_ON(!cs->nr_segs);
cs->seglen = cs->iov[0].iov_len;
cs->addr = (unsigned long) cs->iov[0].iov_base;
cs->iov ++;
cs->nr_segs --;
cs->iov++;
cs->nr_segs--;
}
down_read(&current->mm->mmap_sem);
err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0,
......@@ -589,9 +591,11 @@ static int fuse_copy_page(struct fuse_copy_state *cs, struct page *page,
kunmap_atomic(mapaddr, KM_USER1);
}
while (count) {
int err;
if (!cs->len && (err = fuse_copy_fill(cs)))
return err;
if (!cs->len) {
int err = fuse_copy_fill(cs);
if (err)
return err;
}
if (page) {
void *mapaddr = kmap_atomic(page, KM_USER1);
void *buf = mapaddr + offset;
......@@ -631,9 +635,11 @@ static int fuse_copy_pages(struct fuse_copy_state *cs, unsigned nbytes,
static int fuse_copy_one(struct fuse_copy_state *cs, void *val, unsigned size)
{
while (size) {
int err;
if (!cs->len && (err = fuse_copy_fill(cs)))
return err;
if (!cs->len) {
int err = fuse_copy_fill(cs);
if (err)
return err;
}
fuse_copy_do(cs, &val, &size);
}
return 0;
......@@ -664,6 +670,8 @@ static int request_pending(struct fuse_conn *fc)
/* Wait until a request is available on the pending list */
static void request_wait(struct fuse_conn *fc)
__releases(&fc->lock)
__acquires(&fc->lock)
{
DECLARE_WAITQUEUE(wait, current);
......@@ -691,7 +699,7 @@ static void request_wait(struct fuse_conn *fc)
*/
static int fuse_read_interrupt(struct fuse_conn *fc, struct fuse_req *req,
const struct iovec *iov, unsigned long nr_segs)
__releases(fc->lock)
__releases(&fc->lock)
{
struct fuse_copy_state cs;
struct fuse_in_header ih;
......@@ -813,6 +821,34 @@ static ssize_t fuse_dev_read(struct kiocb *iocb, const struct iovec *iov,
return err;
}
static int fuse_notify_poll(struct fuse_conn *fc, unsigned int size,
struct fuse_copy_state *cs)
{
struct fuse_notify_poll_wakeup_out outarg;
int err;
if (size != sizeof(outarg))
return -EINVAL;
err = fuse_copy_one(cs, &outarg, sizeof(outarg));
if (err)
return err;
return fuse_notify_poll_wakeup(fc, &outarg);
}
static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
unsigned int size, struct fuse_copy_state *cs)
{
switch (code) {
case FUSE_NOTIFY_POLL:
return fuse_notify_poll(fc, size, cs);
default:
return -EINVAL;
}
}
/* Look up request on processing list by unique ID */
static struct fuse_req *request_find(struct fuse_conn *fc, u64 unique)
{
......@@ -876,9 +912,23 @@ static ssize_t fuse_dev_write(struct kiocb *iocb, const struct iovec *iov,
err = fuse_copy_one(&cs, &oh, sizeof(oh));
if (err)
goto err_finish;
err = -EINVAL;
if (oh.len != nbytes)
goto err_finish;
/*
* Zero oh.unique indicates unsolicited notification message
* and error contains notification code.
*/
if (!oh.unique) {
err = fuse_notify(fc, oh.error, nbytes - sizeof(oh), &cs);
fuse_copy_finish(&cs);
return err ? err : nbytes;
}
err = -EINVAL;
if (!oh.unique || oh.error <= -1000 || oh.error > 0 ||
oh.len != nbytes)
if (oh.error <= -1000 || oh.error > 0)
goto err_finish;
spin_lock(&fc->lock);
......@@ -966,6 +1016,8 @@ static unsigned fuse_dev_poll(struct file *file, poll_table *wait)
* This function releases and reacquires fc->lock
*/
static void end_requests(struct fuse_conn *fc, struct list_head *head)
__releases(&fc->lock)
__acquires(&fc->lock)
{
while (!list_empty(head)) {
struct fuse_req *req;
......@@ -988,7 +1040,8 @@ static void end_requests(struct fuse_conn *fc, struct list_head *head)
* locked).
*/
static void end_io_requests(struct fuse_conn *fc)
__releases(fc->lock) __acquires(fc->lock)
__releases(&fc->lock)
__acquires(&fc->lock)
{
while (!list_empty(&fc->io)) {
struct fuse_req *req =
......@@ -1002,11 +1055,11 @@ static void end_io_requests(struct fuse_conn *fc)
wake_up(&req->waitq);
if (end) {
req->end = NULL;
/* The end function will consume this reference */
__fuse_get_request(req);
spin_unlock(&fc->lock);
wait_event(req->waitq, !req->locked);
end(fc, req);
fuse_put_request(fc, req);
spin_lock(&fc->lock);
}
}
......
/*
FUSE: Filesystem in Userspace
Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
......@@ -189,7 +189,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
parent = dget_parent(entry);
fuse_lookup_init(fc, req, get_node_id(parent->d_inode),
&entry->d_name, &outarg);
request_send(fc, req);
fuse_request_send(fc, req);
dput(parent);
err = req->out.h.error;
fuse_put_request(fc, req);
......@@ -204,7 +204,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
return 0;
}
spin_lock(&fc->lock);
fi->nlookup ++;
fi->nlookup++;
spin_unlock(&fc->lock);
}
fuse_put_request(fc, forget_req);
......@@ -283,7 +283,7 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, struct qstr *name,
attr_version = fuse_get_attr_version(fc);
fuse_lookup_init(fc, req, nodeid, name, outarg);
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
/* Zero nodeid is same as -ENOENT, but with valid timeout */
......@@ -369,7 +369,7 @@ static void fuse_sync_release(struct fuse_conn *fc, struct fuse_file *ff,
{
fuse_release_fill(ff, nodeid, flags, FUSE_RELEASE);
ff->reserved_req->force = 1;
request_send(fc, ff->reserved_req);
fuse_request_send(fc, ff->reserved_req);
fuse_put_request(fc, ff->reserved_req);
kfree(ff);
}
......@@ -408,7 +408,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
goto out_put_forget_req;
err = -ENOMEM;
ff = fuse_file_alloc();
ff = fuse_file_alloc(fc);
if (!ff)
goto out_put_request;
......@@ -432,7 +432,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
req->out.args[0].value = &outentry;
req->out.args[1].size = sizeof(outopen);
req->out.args[1].value = &outopen;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
if (err) {
if (err == -ENOSYS)
......@@ -502,7 +502,7 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
else
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err)
......@@ -631,15 +631,17 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
struct inode *inode = entry->d_inode;
/* Set nlink to zero so the inode can be cleared, if
the inode does have more links this will be
discovered at the next lookup/getattr */
/*
* Set nlink to zero so the inode can be cleared, if the inode
* does have more links this will be discovered at the next
* lookup/getattr.
*/
clear_nlink(inode);
fuse_invalidate_attr(inode);
fuse_invalidate_attr(dir);
......@@ -662,7 +664,7 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
req->in.numargs = 1;
req->in.args[0].size = entry->d_name.len + 1;
req->in.args[0].value = entry->d_name.name;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
......@@ -695,7 +697,7 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent,
req->in.args[1].value = oldent->d_name.name;
req->in.args[2].size = newent->d_name.len + 1;
req->in.args[2].value = newent->d_name.name;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
......@@ -811,7 +813,7 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
else
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
......@@ -911,7 +913,7 @@ static int fuse_access(struct inode *inode, int mask)
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
......@@ -1033,7 +1035,7 @@ static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
req->num_pages = 1;
req->pages[0] = page;
fuse_read_fill(req, file, inode, file->f_pos, PAGE_SIZE, FUSE_READDIR);
request_send(fc, req);
fuse_request_send(fc, req);
nbytes = req->out.args[0].size;
err = req->out.h.error;
fuse_put_request(fc, req);
......@@ -1067,7 +1069,7 @@ static char *read_link(struct dentry *dentry)
req->out.numargs = 1;
req->out.args[0].size = PAGE_SIZE - 1;
req->out.args[0].value = link;
request_send(fc, req);
fuse_request_send(fc, req);
if (req->out.h.error) {
free_page((unsigned long) link);
link = ERR_PTR(req->out.h.error);
......@@ -1273,7 +1275,7 @@ static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
else
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err) {
......@@ -1367,7 +1369,7 @@ static int fuse_setxattr(struct dentry *entry, const char *name,
req->in.args[1].value = name;
req->in.args[2].size = size;
req->in.args[2].value = value;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
......@@ -1413,7 +1415,7 @@ static ssize_t fuse_getxattr(struct dentry *entry, const char *name,
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
}
request_send(fc, req);
fuse_request_send(fc, req);
ret = req->out.h.error;
if (!ret)
ret = size ? req->out.args[0].size : outarg.size;
......@@ -1463,7 +1465,7 @@ static ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
req->out.args[0].size = sizeof(outarg);
req->out.args[0].value = &outarg;
}
request_send(fc, req);
fuse_request_send(fc, req);
ret = req->out.h.error;
if (!ret)
ret = size ? req->out.args[0].size : outarg.size;
......@@ -1496,7 +1498,7 @@ static int fuse_removexattr(struct dentry *entry, const char *name)
req->in.numargs = 1;
req->in.args[0].size = strlen(name) + 1;
req->in.args[0].value = name;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
......
/*
FUSE: Filesystem in Userspace
Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
......@@ -39,14 +39,14 @@ static int fuse_send_open(struct inode *inode, struct file *file, int isdir,
req->out.numargs = 1;
req->out.args[0].size = sizeof(*outargp);
req->out.args[0].value = outargp;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
return err;
}
struct fuse_file *fuse_file_alloc(void)
struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
{
struct fuse_file *ff;
ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
......@@ -58,7 +58,12 @@ struct fuse_file *fuse_file_alloc(void)
} else {
INIT_LIST_HEAD(&ff->write_entry);
atomic_set(&ff->count, 0);
spin_lock(&fc->lock);
ff->kh = ++fc->khctr;
spin_unlock(&fc->lock);
}
RB_CLEAR_NODE(&ff->polled_node);
init_waitqueue_head(&ff->poll_wait);
}
return ff;
}
......@@ -79,7 +84,6 @@ static void fuse_release_end(struct fuse_conn *fc, struct fuse_req *req)
{
dput(req->misc.release.dentry);
mntput(req->misc.release.vfsmount);
fuse_put_request(fc, req);
}
static void fuse_file_put(struct fuse_file *ff)
......@@ -89,7 +93,7 @@ static void fuse_file_put(struct fuse_file *ff)
struct inode *inode = req->misc.release.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
req->end = fuse_release_end;
request_send_background(fc, req);
fuse_request_send_background(fc, req);
kfree(ff);
}
}
......@@ -109,6 +113,7 @@ void fuse_finish_open(struct inode *inode, struct file *file,
int fuse_open_common(struct inode *inode, struct file *file, int isdir)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_open_out outarg;
struct fuse_file *ff;
int err;
......@@ -121,7 +126,7 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir)
if (err)
return err;
ff = fuse_file_alloc();
ff = fuse_file_alloc(fc);
if (!ff)
return -ENOMEM;
......@@ -167,7 +172,11 @@ int fuse_release_common(struct inode *inode, struct file *file, int isdir)
spin_lock(&fc->lock);
list_del(&ff->write_entry);
if (!RB_EMPTY_NODE(&ff->polled_node))
rb_erase(&ff->polled_node, &fc->polled_files);
spin_unlock(&fc->lock);
wake_up_interruptible_sync(&ff->poll_wait);
/*
* Normally this will send the RELEASE request,
* however if some asynchronous READ or WRITE requests
......@@ -280,7 +289,7 @@ static int fuse_flush(struct file *file, fl_owner_t id)
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
req->force = 1;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
......@@ -344,7 +353,7 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
request_send(fc, req);
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (err == -ENOSYS) {
......@@ -396,7 +405,7 @@ static size_t fuse_send_read(struct fuse_req *req, struct file *file,
inarg->read_flags |= FUSE_READ_LOCKOWNER;
inarg->lock_owner = fuse_lock_owner_id(fc, owner);
}
request_send(fc, req);
fuse_request_send(fc, req);
return req->out.args[0].size;
}
......@@ -493,7 +502,6 @@ static void fuse_readpages_end(struct fuse_conn *fc, struct fuse_req *req)
}
if (req->ff)
fuse_file_put(req->ff);
fuse_put_request(fc, req);
}
static void fuse_send_readpages(struct fuse_req *req, struct file *file,
......@@ -509,10 +517,11 @@ static void fuse_send_readpages(struct fuse_req *req, struct file *file,
struct fuse_file *ff = file->private_data;
req->ff = fuse_file_get(ff);
req->end = fuse_readpages_end;
request_send_background(fc, req);
fuse_request_send_background(fc, req);
} else {
request_send(fc, req);
fuse_request_send(fc, req);
fuse_readpages_end(fc, req);
fuse_put_request(fc, req);
}
}
......@@ -543,7 +552,7 @@ static int fuse_readpages_fill(void *_data, struct page *page)
}
}
req->pages[req->num_pages] = page;
req->num_pages ++;
req->num_pages++;
return 0;
}
......@@ -636,7 +645,7 @@ static size_t fuse_send_write(struct fuse_req *req, struct file *file,
inarg->write_flags |= FUSE_WRITE_LOCKOWNER;
inarg->lock_owner = fuse_lock_owner_id(fc, owner);
}
request_send(fc, req);
fuse_request_send(fc, req);
return req->misc.write.out.size;
}
......@@ -1042,7 +1051,6 @@ static void fuse_writepage_free(struct fuse_conn *fc, struct fuse_req *req)
{
__free_page(req->pages[0]);
fuse_file_put(req->ff);
fuse_put_request(fc, req);
}
static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
......@@ -1060,6 +1068,8 @@ static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
/* Called under fc->lock, may release and reacquire it */
static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req)
__releases(&fc->lock)
__acquires(&fc->lock)
{
struct fuse_inode *fi = get_fuse_inode(req->inode);
loff_t size = i_size_read(req->inode);
......@@ -1079,13 +1089,14 @@ static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req)
req->in.args[1].size = inarg->size;
fi->writectr++;
request_send_background_locked(fc, req);
fuse_request_send_background_locked(fc, req);
return;
out_free:
fuse_writepage_finish(fc