* We are doing an exec(). 'current' is the process
* doing the exec and bprm->mm is the new process's mm.
*/
+ mmap_read_lock(bprm->mm);
ret = get_user_pages_remote(bprm->mm, pos, 1, gup_flags,
&page, NULL, NULL);
+ mmap_read_unlock(bprm->mm);
if (ret <= 0)
return NULL;
}
if (kmapped_page) {
- flush_kernel_dcache_page(kmapped_page);
+ flush_dcache_page(kmapped_page);
kunmap(kmapped_page);
put_arg_page(kmapped_page);
}
ret = 0;
out:
if (kmapped_page) {
- flush_kernel_dcache_page(kmapped_page);
+ flush_dcache_page(kmapped_page);
kunmap(kmapped_page);
put_arg_page(kmapped_page);
}
kaddr = kmap_atomic(page);
flush_arg_page(bprm, pos & PAGE_MASK, page);
memcpy(kaddr + offset_in_page(pos), arg, bytes_to_copy);
- flush_kernel_dcache_page(page);
+ flush_dcache_page(page);
kunmap_atomic(kaddr);
put_arg_page(page);
}
* not visibile until then. This also enables the update
* to be lockless.
*/
- set_mm_exe_file(bprm->mm, bprm->file);
+ retval = set_mm_exe_file(bprm->mm, bprm->file);
+ if (retval)
+ goto out;
/* If the binary is not readable then enforce mm->dumpable=0 */
would_dump(bprm, bprm->file);