switch elf_core_write_extra_phdrs() to dump_emit()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/x86/um/elfcore.c b/arch/x86/um/elfcore.c
index 6bb49b6..fc21f98 100644
--- a/arch/x86/um/elfcore.c
+++ b/arch/x86/um/elfcore.c
@@ -11,8 +11,7 @@
 	return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0;
 }
 
-int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-			       unsigned long limit)
+int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
 	if ( vsyscall_ehdr ) {
 		const struct elfhdr *const ehdrp =
@@ -32,9 +31,7 @@
 				phdr.p_offset += ofs;
 			}
 			phdr.p_paddr = 0; /* match other core phdrs */
-			*size += sizeof(phdr);
-			if (*size > limit
-			    || !dump_write(file, &phdr, sizeof(phdr)))
+			if (!dump_emit(cprm, &phdr, sizeof(phdr)))
 				return 0;
 		}
 	}