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cifs: do not allow changing posix_paths during remount 

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Ronnie Sahlberg 2020-12-14 16:40:23 +10:00 committed by Steve French
parent 7c7ee628f8
commit 531f03bc6d
1 changed files with 4 additions and 0 deletions
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4
fs/cifs/fs_context.c
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@ -627,6 +627,10 @@ static void smb3_fs_context_free(struct fs_context *fc)
static int smb3_verify_reconfigure_ctx(struct smb3_fs_context *new_ctx,
struct smb3_fs_context *old_ctx)
{
if (new_ctx->posix_paths != old_ctx->posix_paths) {
cifs_dbg(VFS, "can not change posixpaths during remount\n");
return -EINVAL;
}
if (new_ctx->sectype != old_ctx->sectype) {
cifs_dbg(VFS, "can not change sec during remount\n");
return -EINVAL;