57 	struct xfile		*xf;  in xfile_create()  local
60 	xf = kmalloc(sizeof(struct xfile), XCHK_GFP_FLAGS);  in xfile_create()
61 	if (!xf)  in xfile_create()
64 	xf->file = shmem_kernel_file_setup(description, isize, VM_NORESERVE);  in xfile_create()
65 	if (IS_ERR(xf->file)) {  in xfile_create()
66 		error = PTR_ERR(xf->file);  in xfile_create()
70 	inode = file_inode(xf->file);  in xfile_create()
79 	trace_xfile_create(xf);  in xfile_create()
81 	*xfilep = xf;  in xfile_create()
82 	return 0;  in xfile_create()
84 	kfree(xf);  in xfile_create()
91 	struct xfile		*xf)  in xfile_destroy()  argument
93 	struct inode		*inode = file_inode(xf->file);  in xfile_destroy()
95 	trace_xfile_destroy(xf);  in xfile_destroy()
98 	fput(xf->file);  in xfile_destroy()
99 	kfree(xf);  in xfile_destroy()
108 	struct xfile		*xf,  in xfile_load()  argument
113 	struct inode		*inode = file_inode(xf->file);  in xfile_load()
121 	trace_xfile_load(xf, pos, count);  in xfile_load()
124 	while (count > 0) {  in xfile_load()
129 		if (shmem_get_folio(inode, pos >> PAGE_SHIFT, 0, &folio,  in xfile_load()
130 				SGP_READ) < 0)  in xfile_load()
139 			memset(buf, 0, len);  in xfile_load()
141 			if (filemap_check_wb_err(inode->i_mapping, 0)) {  in xfile_load()
162 	return 0;  in xfile_load()
171 	struct xfile		*xf,  in xfile_store()  argument
176 	struct inode		*inode = file_inode(xf->file);  in xfile_store()
184 	trace_xfile_store(xf, pos, count);  in xfile_store()
194 	while (count > 0) {  in xfile_store()
199 		if (shmem_get_folio(inode, pos >> PAGE_SHIFT, 0, &folio,  in xfile_store()
200 				SGP_CACHE) < 0)  in xfile_store()
202 		if (filemap_check_wb_err(inode->i_mapping, 0)) {  in xfile_store()
224 	return 0;  in xfile_store()
230 	struct xfile		*xf,  in xfile_seek_data()  argument
235 	ret = vfs_llseek(xf->file, pos, SEEK_DATA);  in xfile_seek_data()
236 	trace_xfile_seek_data(xf, pos, ret);  in xfile_seek_data()
247 	struct xfile		*xf,  in xfile_get_folio()  argument
252 	struct inode		*inode = file_inode(xf->file);  in xfile_get_folio()
260 	trace_xfile_get_folio(xf, pos, len);  in xfile_get_folio()
270 	error = shmem_get_folio(inode, pos >> PAGE_SHIFT, 0, &folio,  in xfile_get_folio()
285 	if (filemap_check_wb_err(inode->i_mapping, 0)) {  in xfile_get_folio()
305 	struct xfile		*xf,  in xfile_put_folio()  argument
308 	trace_xfile_put_folio(xf, folio_pos(folio), folio_size(folio));  in xfile_put_folio()
317 	struct xfile		*xf,  in xfile_discard()  argument
321 	trace_xfile_discard(xf, pos, count);  in xfile_discard()
323 	shmem_truncate_range(file_inode(xf->file), pos, pos + count - 1);  in xfile_discard()