Skip to content
Snippets Groups Projects
Commit 14b8869f authored by Eric Van Hensbergen's avatar Eric Van Hensbergen
Browse files

9p: fix mmap to be read-only


v9fs was allowing writable mmap which could lead to kernel BUG() cases.
This sets the mmap function to generic_file_readonly_mmap which (correctly)
returns an error to applications which open mmap for writing.

Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent d199d652
No related branches found
No related tags found
No related merge requests found
......@@ -184,7 +184,7 @@ static const struct file_operations v9fs_cached_file_operations = {
.open = v9fs_file_open,
.release = v9fs_dir_release,
.lock = v9fs_file_lock,
.mmap = generic_file_mmap,
.mmap = generic_file_readonly_mmap,
};
const struct file_operations v9fs_file_operations = {
......@@ -194,5 +194,5 @@ const struct file_operations v9fs_file_operations = {
.open = v9fs_file_open,
.release = v9fs_dir_release,
.lock = v9fs_file_lock,
.mmap = generic_file_mmap,
.mmap = generic_file_readonly_mmap,
};
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment