return pages;
}
-static int fuse_send_open(struct fuse_conn *fc, u64 nodeid, struct file *file,
+static int fuse_send_open(struct fuse_mount *fm, u64 nodeid, struct file *file,
int opcode, struct fuse_open_out *outargp)
{
struct fuse_open_in inarg;
memset(&inarg, 0, sizeof(inarg));
inarg.flags = file->f_flags & ~(O_CREAT | O_EXCL | O_NOCTTY);
- if (!fc->atomic_o_trunc)
+ if (!fm->fc->atomic_o_trunc)
inarg.flags &= ~O_TRUNC;
args.opcode = opcode;
args.nodeid = nodeid;
args.out_args[0].size = sizeof(*outargp);
args.out_args[0].value = outargp;
- return fuse_simple_request(fc, &args);
+ return fuse_simple_request(fm, &args);
}
struct fuse_release_args {
struct inode *inode;
};
-struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
+struct fuse_file *fuse_file_alloc(struct fuse_mount *fm)
{
struct fuse_file *ff;
if (unlikely(!ff))
return NULL;
- ff->fc = fc;
+ ff->fm = fm;
ff->release_args = kzalloc(sizeof(*ff->release_args),
GFP_KERNEL_ACCOUNT);
if (!ff->release_args) {
RB_CLEAR_NODE(&ff->polled_node);
init_waitqueue_head(&ff->poll_wait);
- ff->kh = atomic64_inc_return(&fc->khctr);
+ ff->kh = atomic64_inc_return(&fm->fc->khctr);
return ff;
}
return ff;
}
-static void fuse_release_end(struct fuse_conn *fc, struct fuse_args *args,
+static void fuse_release_end(struct fuse_mount *fm, struct fuse_args *args,
int error)
{
struct fuse_release_args *ra = container_of(args, typeof(*ra), args);
if (refcount_dec_and_test(&ff->count)) {
struct fuse_args *args = &ff->release_args->args;
- if (isdir ? ff->fc->no_opendir : ff->fc->no_open) {
+ if (isdir ? ff->fm->fc->no_opendir : ff->fm->fc->no_open) {
/* Do nothing when client does not implement 'open' */
- fuse_release_end(ff->fc, args, 0);
+ fuse_release_end(ff->fm, args, 0);
} else if (sync) {
- fuse_simple_request(ff->fc, args);
- fuse_release_end(ff->fc, args, 0);
+ fuse_simple_request(ff->fm, args);
+ fuse_release_end(ff->fm, args, 0);
} else {
args->end = fuse_release_end;
- if (fuse_simple_background(ff->fc, args,
+ if (fuse_simple_background(ff->fm, args,
GFP_KERNEL | __GFP_NOFAIL))
- fuse_release_end(ff->fc, args, -ENOTCONN);
+ fuse_release_end(ff->fm, args, -ENOTCONN);
}
kfree(ff);
}
}
-int fuse_do_open(struct fuse_conn *fc, u64 nodeid, struct file *file,
+int fuse_do_open(struct fuse_mount *fm, u64 nodeid, struct file *file,
bool isdir)
{
+ struct fuse_conn *fc = fm->fc;
struct fuse_file *ff;
int opcode = isdir ? FUSE_OPENDIR : FUSE_OPEN;
- ff = fuse_file_alloc(fc);
+ ff = fuse_file_alloc(fm);
if (!ff)
return -ENOMEM;
struct fuse_open_out outarg;
int err;
- err = fuse_send_open(fc, nodeid, file, opcode, &outarg);
+ err = fuse_send_open(fm, nodeid, file, opcode, &outarg);
if (!err) {
ff->fh = outarg.fh;
ff->open_flags = outarg.open_flags;
int fuse_open_common(struct inode *inode, struct file *file, bool isdir)
{
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
+ struct fuse_conn *fc = fm->fc;
int err;
bool is_wb_truncate = (file->f_flags & O_TRUNC) &&
fc->atomic_o_trunc &&
fc->writeback_cache;
+ bool dax_truncate = (file->f_flags & O_TRUNC) &&
+ fc->atomic_o_trunc && FUSE_IS_DAX(inode);
err = generic_file_open(inode, file);
if (err)
return err;
- if (is_wb_truncate) {
+ if (is_wb_truncate || dax_truncate) {
inode_lock(inode);
fuse_set_nowrite(inode);
}
- err = fuse_do_open(fc, get_node_id(inode), file, isdir);
+ if (dax_truncate) {
+ down_write(&get_fuse_inode(inode)->i_mmap_sem);
+ err = fuse_dax_break_layouts(inode, 0, 0);
+ if (err)
+ goto out;
+ }
+ err = fuse_do_open(fm, get_node_id(inode), file, isdir);
if (!err)
fuse_finish_open(inode, file);
- if (is_wb_truncate) {
+out:
+ if (dax_truncate)
+ up_write(&get_fuse_inode(inode)->i_mmap_sem);
+
+ if (is_wb_truncate | dax_truncate) {
fuse_release_nowrite(inode);
inode_unlock(inode);
}
static void fuse_prepare_release(struct fuse_inode *fi, struct fuse_file *ff,
int flags, int opcode)
{
- struct fuse_conn *fc = ff->fc;
+ struct fuse_conn *fc = ff->fm->fc;
struct fuse_release_args *ra = ff->release_args;
/* Inode is NULL on error path of fuse_create_open() */
if (ff->flock) {
ra->inarg.release_flags |= FUSE_RELEASE_FLOCK_UNLOCK;
- ra->inarg.lock_owner = fuse_lock_owner_id(ff->fc,
+ ra->inarg.lock_owner = fuse_lock_owner_id(ff->fm->fc,
(fl_owner_t) file);
}
/* Hold inode until release is finished */
* synchronous RELEASE is allowed (and desirable) in this case
* because the server can be trusted not to screw up.
*/
- fuse_file_put(ff, ff->fc->destroy, isdir);
+ fuse_file_put(ff, ff->fm->fc->destroy, isdir);
}
static int fuse_open(struct inode *inode, struct file *file)
static int fuse_flush(struct file *file, fl_owner_t id)
{
struct inode *inode = file_inode(file);
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
struct fuse_file *ff = file->private_data;
struct fuse_flush_in inarg;
FUSE_ARGS(args);
return err;
err = 0;
- if (fc->no_flush)
+ if (fm->fc->no_flush)
goto inval_attr_out;
memset(&inarg, 0, sizeof(inarg));
inarg.fh = ff->fh;
- inarg.lock_owner = fuse_lock_owner_id(fc, id);
+ inarg.lock_owner = fuse_lock_owner_id(fm->fc, id);
args.opcode = FUSE_FLUSH;
args.nodeid = get_node_id(inode);
args.in_numargs = 1;
args.in_args[0].value = &inarg;
args.force = true;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (err == -ENOSYS) {
- fc->no_flush = 1;
+ fm->fc->no_flush = 1;
err = 0;
}
* In memory i_blocks is not maintained by fuse, if writeback cache is
* enabled, i_blocks from cached attr may not be accurate.
*/
- if (!err && fc->writeback_cache)
+ if (!err && fm->fc->writeback_cache)
fuse_invalidate_attr(inode);
return err;
}
int datasync, int opcode)
{
struct inode *inode = file->f_mapping->host;
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
struct fuse_file *ff = file->private_data;
FUSE_ARGS(args);
struct fuse_fsync_in inarg;
args.in_numargs = 1;
args.in_args[0].size = sizeof(inarg);
args.in_args[0].value = &inarg;
- return fuse_simple_request(fc, &args);
+ return fuse_simple_request(fm, &args);
}
static int fuse_fsync(struct file *file, loff_t start, loff_t end,
kfree(ia);
}
-static void fuse_aio_complete_req(struct fuse_conn *fc, struct fuse_args *args,
+static void fuse_aio_complete_req(struct fuse_mount *fm, struct fuse_args *args,
int err)
{
struct fuse_io_args *ia = container_of(args, typeof(*ia), ap.args);
fuse_io_free(ia);
}
-static ssize_t fuse_async_req_send(struct fuse_conn *fc,
+static ssize_t fuse_async_req_send(struct fuse_mount *fm,
struct fuse_io_args *ia, size_t num_bytes)
{
ssize_t err;
ia->ap.args.end = fuse_aio_complete_req;
ia->ap.args.may_block = io->should_dirty;
- err = fuse_simple_background(fc, &ia->ap.args, GFP_KERNEL);
+ err = fuse_simple_background(fm, &ia->ap.args, GFP_KERNEL);
if (err)
- fuse_aio_complete_req(fc, &ia->ap.args, err);
+ fuse_aio_complete_req(fm, &ia->ap.args, err);
return num_bytes;
}
{
struct file *file = ia->io->iocb->ki_filp;
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
fuse_read_args_fill(ia, file, pos, count, FUSE_READ);
if (owner != NULL) {
ia->read.in.read_flags |= FUSE_READ_LOCKOWNER;
- ia->read.in.lock_owner = fuse_lock_owner_id(fc, owner);
+ ia->read.in.lock_owner = fuse_lock_owner_id(fm->fc, owner);
}
if (ia->io->async)
- return fuse_async_req_send(fc, ia, count);
+ return fuse_async_req_send(fm, ia, count);
- return fuse_simple_request(fc, &ia->ap.args);
+ return fuse_simple_request(fm, &ia->ap.args);
}
static void fuse_read_update_size(struct inode *inode, loff_t size,
static int fuse_do_readpage(struct file *file, struct page *page)
{
struct inode *inode = page->mapping->host;
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
loff_t pos = page_offset(page);
struct fuse_page_desc desc = { .length = PAGE_SIZE };
struct fuse_io_args ia = {
*/
fuse_wait_on_page_writeback(inode, page->index);
- attr_ver = fuse_get_attr_version(fc);
+ attr_ver = fuse_get_attr_version(fm->fc);
/* Don't overflow end offset */
if (pos + (desc.length - 1) == LLONG_MAX)
desc.length--;
fuse_read_args_fill(&ia, file, pos, desc.length, FUSE_READ);
- res = fuse_simple_request(fc, &ia.ap.args);
+ res = fuse_simple_request(fm, &ia.ap.args);
if (res < 0)
return res;
/*
return err;
}
-static void fuse_readpages_end(struct fuse_conn *fc, struct fuse_args *args,
+static void fuse_readpages_end(struct fuse_mount *fm, struct fuse_args *args,
int err)
{
int i;
static void fuse_send_readpages(struct fuse_io_args *ia, struct file *file)
{
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
struct fuse_args_pages *ap = &ia->ap;
loff_t pos = page_offset(ap->pages[0]);
size_t count = ap->num_pages << PAGE_SHIFT;
WARN_ON((loff_t) (pos + count) < 0);
fuse_read_args_fill(ia, file, pos, count, FUSE_READ);
- ia->read.attr_ver = fuse_get_attr_version(fc);
- if (fc->async_read) {
+ ia->read.attr_ver = fuse_get_attr_version(fm->fc);
+ if (fm->fc->async_read) {
ia->ff = fuse_file_get(ff);
ap->args.end = fuse_readpages_end;
- err = fuse_simple_background(fc, &ap->args, GFP_KERNEL);
+ err = fuse_simple_background(fm, &ap->args, GFP_KERNEL);
if (!err)
return;
} else {
- res = fuse_simple_request(fc, &ap->args);
+ res = fuse_simple_request(fm, &ap->args);
err = res < 0 ? res : 0;
}
- fuse_readpages_end(fc, &ap->args, err);
+ fuse_readpages_end(fm, &ap->args, err);
}
static void fuse_readahead(struct readahead_control *rac)
args->opcode = FUSE_WRITE;
args->nodeid = ff->nodeid;
args->in_numargs = 2;
- if (ff->fc->minor < 9)
+ if (ff->fm->fc->minor < 9)
args->in_args[0].size = FUSE_COMPAT_WRITE_IN_SIZE;
else
args->in_args[0].size = sizeof(ia->write.in);
struct kiocb *iocb = ia->io->iocb;
struct file *file = iocb->ki_filp;
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
struct fuse_write_in *inarg = &ia->write.in;
ssize_t err;
inarg->flags = fuse_write_flags(iocb);
if (owner != NULL) {
inarg->write_flags |= FUSE_WRITE_LOCKOWNER;
- inarg->lock_owner = fuse_lock_owner_id(fc, owner);
+ inarg->lock_owner = fuse_lock_owner_id(fm->fc, owner);
}
if (ia->io->async)
- return fuse_async_req_send(fc, ia, count);
+ return fuse_async_req_send(fm, ia, count);
- err = fuse_simple_request(fc, &ia->ap.args);
+ err = fuse_simple_request(fm, &ia->ap.args);
if (!err && ia->write.out.size > count)
err = -EIO;
struct fuse_args_pages *ap = &ia->ap;
struct file *file = iocb->ki_filp;
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
unsigned int offset, i;
int err;
fuse_write_args_fill(ia, ff, pos, count);
ia->write.in.flags = fuse_write_flags(iocb);
- err = fuse_simple_request(fc, &ap->args);
+ err = fuse_simple_request(fm, &ap->args);
if (!err && ia->write.out.size > count)
err = -EIO;
struct file *file = io->iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_conn *fc = ff->fm->fc;
size_t nmax = write ? fc->max_write : fc->max_read;
loff_t pos = *ppos;
size_t count = iov_iter_count(iter);
{
struct file *file = iocb->ki_filp;
struct fuse_file *ff = file->private_data;
+ struct inode *inode = file_inode(file);
- if (is_bad_inode(file_inode(file)))
+ if (is_bad_inode(inode))
return -EIO;
+ if (FUSE_IS_DAX(inode))
+ return fuse_dax_read_iter(iocb, to);
+
if (!(ff->open_flags & FOPEN_DIRECT_IO))
return fuse_cache_read_iter(iocb, to);
else
{
struct file *file = iocb->ki_filp;
struct fuse_file *ff = file->private_data;
+ struct inode *inode = file_inode(file);
- if (is_bad_inode(file_inode(file)))
+ if (is_bad_inode(inode))
return -EIO;
+ if (FUSE_IS_DAX(inode))
+ return fuse_dax_write_iter(iocb, from);
+
if (!(ff->open_flags & FOPEN_DIRECT_IO))
return fuse_cache_write_iter(iocb, from);
else
kfree(wpa);
}
-static void fuse_writepage_finish(struct fuse_conn *fc,
+static void fuse_writepage_finish(struct fuse_mount *fm,
struct fuse_writepage_args *wpa)
{
struct fuse_args_pages *ap = &wpa->ia.ap;
}
/* Called under fi->lock, may release and reacquire it */
-static void fuse_send_writepage(struct fuse_conn *fc,
+static void fuse_send_writepage(struct fuse_mount *fm,
struct fuse_writepage_args *wpa, loff_t size)
__releases(fi->lock)
__acquires(fi->lock)
args->force = true;
args->nocreds = true;
- err = fuse_simple_background(fc, args, GFP_ATOMIC);
+ err = fuse_simple_background(fm, args, GFP_ATOMIC);
if (err == -ENOMEM) {
spin_unlock(&fi->lock);
- err = fuse_simple_background(fc, args, GFP_NOFS | __GFP_NOFAIL);
+ err = fuse_simple_background(fm, args, GFP_NOFS | __GFP_NOFAIL);
spin_lock(&fi->lock);
}
out_free:
fi->writectr--;
rb_erase(&wpa->writepages_entry, &fi->writepages);
- fuse_writepage_finish(fc, wpa);
+ fuse_writepage_finish(fm, wpa);
spin_unlock(&fi->lock);
/* After fuse_writepage_finish() aux request list is private */
__releases(fi->lock)
__acquires(fi->lock)
{
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
loff_t crop = i_size_read(inode);
struct fuse_writepage_args *wpa;
wpa = list_entry(fi->queued_writes.next,
struct fuse_writepage_args, queue_entry);
list_del_init(&wpa->queue_entry);
- fuse_send_writepage(fc, wpa, crop);
+ fuse_send_writepage(fm, wpa, crop);
}
}
WARN_ON(fuse_insert_writeback(root, wpa));
}
-static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_args *args,
+static void fuse_writepage_end(struct fuse_mount *fm, struct fuse_args *args,
int error)
{
struct fuse_writepage_args *wpa =
spin_lock(&fi->lock);
rb_erase(&wpa->writepages_entry, &fi->writepages);
while (wpa->next) {
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
struct fuse_write_in *inarg = &wpa->ia.write.in;
struct fuse_writepage_args *next = wpa->next;
* no invocations of fuse_writepage_end() while we're in
* fuse_set_nowrite..fuse_release_nowrite section.
*/
- fuse_send_writepage(fc, next, inarg->offset + inarg->size);
+ fuse_send_writepage(fm, next, inarg->offset + inarg->size);
}
fi->writectr--;
- fuse_writepage_finish(fc, wpa);
+ fuse_writepage_finish(fm, wpa);
spin_unlock(&fi->lock);
fuse_writepage_free(wpa);
}
{
struct fuse_file *ff = file->private_data;
+ /* DAX mmap is superior to direct_io mmap */
+ if (FUSE_IS_DAX(file_inode(file)))
+ return fuse_dax_mmap(file, vma);
+
if (ff->open_flags & FOPEN_DIRECT_IO) {
/* Can't provide the coherency needed for MAP_SHARED */
if (vma->vm_flags & VM_MAYSHARE)
static int fuse_getlk(struct file *file, struct file_lock *fl)
{
struct inode *inode = file_inode(file);
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
struct fuse_lk_in inarg;
struct fuse_lk_out outarg;
args.out_numargs = 1;
args.out_args[0].size = sizeof(outarg);
args.out_args[0].value = &outarg;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (!err)
- err = convert_fuse_file_lock(fc, &outarg.lk, fl);
+ err = convert_fuse_file_lock(fm->fc, &outarg.lk, fl);
return err;
}
static int fuse_setlk(struct file *file, struct file_lock *fl, int flock)
{
struct inode *inode = file_inode(file);
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
struct fuse_lk_in inarg;
int opcode = (fl->fl_flags & FL_SLEEP) ? FUSE_SETLKW : FUSE_SETLK;
struct pid *pid = fl->fl_type != F_UNLCK ? task_tgid(current) : NULL;
- pid_t pid_nr = pid_nr_ns(pid, fc->pid_ns);
+ pid_t pid_nr = pid_nr_ns(pid, fm->fc->pid_ns);
int err;
if (fl->fl_lmops && fl->fl_lmops->lm_grant) {
return 0;
fuse_lk_fill(&args, file, fl, opcode, pid_nr, flock, &inarg);
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
/* locking is restartable */
if (err == -EINTR)
static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
{
struct inode *inode = mapping->host;
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
struct fuse_bmap_in inarg;
struct fuse_bmap_out outarg;
int err;
- if (!inode->i_sb->s_bdev || fc->no_bmap)
+ if (!inode->i_sb->s_bdev || fm->fc->no_bmap)
return 0;
memset(&inarg, 0, sizeof(inarg));
args.out_numargs = 1;
args.out_args[0].size = sizeof(outarg);
args.out_args[0].value = &outarg;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (err == -ENOSYS)
- fc->no_bmap = 1;
+ fm->fc->no_bmap = 1;
return err ? 0 : outarg.block;
}
static loff_t fuse_lseek(struct file *file, loff_t offset, int whence)
{
struct inode *inode = file->f_mapping->host;
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
struct fuse_file *ff = file->private_data;
FUSE_ARGS(args);
struct fuse_lseek_in inarg = {
struct fuse_lseek_out outarg;
int err;
- if (fc->no_lseek)
+ if (fm->fc->no_lseek)
goto fallback;
args.opcode = FUSE_LSEEK;
args.out_numargs = 1;
args.out_args[0].size = sizeof(outarg);
args.out_args[0].value = &outarg;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (err) {
if (err == -ENOSYS) {
- fc->no_lseek = 1;
+ fm->fc->no_lseek = 1;
goto fallback;
}
return err;
unsigned int flags)
{
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
struct fuse_ioctl_in inarg = {
.fh = ff->fh,
.cmd = cmd,
BUILD_BUG_ON(sizeof(struct fuse_ioctl_iovec) * FUSE_IOCTL_MAX_IOV > PAGE_SIZE);
err = -ENOMEM;
- ap.pages = fuse_pages_alloc(fc->max_pages, GFP_KERNEL, &ap.descs);
+ ap.pages = fuse_pages_alloc(fm->fc->max_pages, GFP_KERNEL, &ap.descs);
iov_page = (struct iovec *) __get_free_page(GFP_KERNEL);
if (!ap.pages || !iov_page)
goto out;
- fuse_page_descs_length_init(ap.descs, 0, fc->max_pages);
+ fuse_page_descs_length_init(ap.descs, 0, fm->fc->max_pages);
/*
* If restricted, initialize IO parameters as encoded in @cmd.
/* make sure there are enough buffer pages and init request with them */
err = -ENOMEM;
- if (max_pages > fc->max_pages)
+ if (max_pages > fm->fc->max_pages)
goto out;
while (ap.num_pages < max_pages) {
ap.pages[ap.num_pages] = alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
ap.args.out_pages = true;
ap.args.out_argvar = true;
- transferred = fuse_simple_request(fc, &ap.args);
+ transferred = fuse_simple_request(fm, &ap.args);
err = transferred;
if (transferred < 0)
goto out;
goto out;
vaddr = kmap_atomic(ap.pages[0]);
- err = fuse_copy_ioctl_iovec(fc, iov_page, vaddr,
+ err = fuse_copy_ioctl_iovec(fm->fc, iov_page, vaddr,
transferred, in_iovs + out_iovs,
(flags & FUSE_IOCTL_COMPAT) != 0);
kunmap_atomic(vaddr);
in_iov = iov_page;
out_iov = in_iov + in_iovs;
- err = fuse_verify_ioctl_iov(fc, in_iov, in_iovs);
+ err = fuse_verify_ioctl_iov(fm->fc, in_iov, in_iovs);
if (err)
goto out;
- err = fuse_verify_ioctl_iov(fc, out_iov, out_iovs);
+ err = fuse_verify_ioctl_iov(fm->fc, out_iov, out_iovs);
if (err)
goto out;
__poll_t fuse_file_poll(struct file *file, poll_table *wait)
{
struct fuse_file *ff = file->private_data;
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
struct fuse_poll_in inarg = { .fh = ff->fh, .kh = ff->kh };
struct fuse_poll_out outarg;
FUSE_ARGS(args);
int err;
- if (fc->no_poll)
+ if (fm->fc->no_poll)
return DEFAULT_POLLMASK;
poll_wait(file, &ff->poll_wait, wait);
*/
if (waitqueue_active(&ff->poll_wait)) {
inarg.flags |= FUSE_POLL_SCHEDULE_NOTIFY;
- fuse_register_polled_file(fc, ff);
+ fuse_register_polled_file(fm->fc, ff);
}
args.opcode = FUSE_POLL;
args.out_numargs = 1;
args.out_args[0].size = sizeof(outarg);
args.out_args[0].value = &outarg;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (!err)
return demangle_poll(outarg.revents);
if (err == -ENOSYS) {
- fc->no_poll = 1;
+ fm->fc->no_poll = 1;
return DEFAULT_POLLMASK;
}
return EPOLLERR;
* By default, we want to optimize all I/Os with async request
* submission to the client filesystem if supported.
*/
- io->async = ff->fc->async_dio;
+ io->async = ff->fm->fc->async_dio;
io->iocb = iocb;
io->blocking = is_sync_kiocb(iocb);
/* optimization for short read */
if (io->async && !io->write && offset + count > i_size) {
- iov_iter_truncate(iter, fuse_round_up(ff->fc, i_size - offset));
+ iov_iter_truncate(iter, fuse_round_up(ff->fm->fc, i_size - offset));
shortened = count - iov_iter_count(iter);
count -= shortened;
}
struct fuse_file *ff = file->private_data;
struct inode *inode = file_inode(file);
struct fuse_inode *fi = get_fuse_inode(inode);
- struct fuse_conn *fc = ff->fc;
+ struct fuse_mount *fm = ff->fm;
FUSE_ARGS(args);
struct fuse_fallocate_in inarg = {
.fh = ff->fh,
bool lock_inode = !(mode & FALLOC_FL_KEEP_SIZE) ||
(mode & FALLOC_FL_PUNCH_HOLE);
+ bool block_faults = FUSE_IS_DAX(inode) && lock_inode;
+
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
return -EOPNOTSUPP;
- if (fc->no_fallocate)
+ if (fm->fc->no_fallocate)
return -EOPNOTSUPP;
if (lock_inode) {
inode_lock(inode);
+ if (block_faults) {
+ down_write(&fi->i_mmap_sem);
+ err = fuse_dax_break_layouts(inode, 0, 0);
+ if (err)
+ goto out;
+ }
+
if (mode & FALLOC_FL_PUNCH_HOLE) {
loff_t endbyte = offset + length - 1;
args.in_numargs = 1;
args.in_args[0].size = sizeof(inarg);
args.in_args[0].value = &inarg;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (err == -ENOSYS) {
- fc->no_fallocate = 1;
+ fm->fc->no_fallocate = 1;
err = -EOPNOTSUPP;
}
if (err)
if (!(mode & FALLOC_FL_KEEP_SIZE)) {
bool changed = fuse_write_update_size(inode, offset + length);
- if (changed && fc->writeback_cache)
+ if (changed && fm->fc->writeback_cache)
file_update_time(file);
}
if (!(mode & FALLOC_FL_KEEP_SIZE))
clear_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
+ if (block_faults)
+ up_write(&fi->i_mmap_sem);
+
if (lock_inode)
inode_unlock(inode);
struct inode *inode_in = file_inode(file_in);
struct inode *inode_out = file_inode(file_out);
struct fuse_inode *fi_out = get_fuse_inode(inode_out);
- struct fuse_conn *fc = ff_in->fc;
+ struct fuse_mount *fm = ff_in->fm;
+ struct fuse_conn *fc = fm->fc;
FUSE_ARGS(args);
struct fuse_copy_file_range_in inarg = {
.fh_in = ff_in->fh,
args.out_numargs = 1;
args.out_args[0].size = sizeof(outarg);
args.out_args[0].value = &outarg;
- err = fuse_simple_request(fc, &args);
+ err = fuse_simple_request(fm, &args);
if (err == -ENOSYS) {
fc->no_copy_file_range = 1;
err = -EOPNOTSUPP;
.release = fuse_release,
.fsync = fuse_fsync,
.lock = fuse_file_lock,
+ .get_unmapped_area = thp_get_unmapped_area,
.flock = fuse_file_flock,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
fi->writectr = 0;
init_waitqueue_head(&fi->page_waitq);
fi->writepages = RB_ROOT;
+
+ if (IS_ENABLED(CONFIG_FUSE_DAX))
+ fuse_dax_inode_init(inode);
}
projects / linux-2.6-microblaze.git / blobdiff