> +int vfs_test_lock(struct file *filp, struct file_lock *fl, struct file_lock
> *conf)
Please make sure to add linebreaks after at most 80 characters.
> + error = vfs_test_lock(filp, &file_lock, &cfl);
> + if (error)
> + goto out;
> + fl = (cfl.fl_type == F_UNLCK ? NULL : &cfl);
> flock.l_type = F_UNLCK;
> if (fl != NULL) {
This code snippled is more than ugly. fl is only checked for equality
once so you should reformulate that check using the actual type check:
if (cfl.fl_type != F_UNLCK) {
That also allows you to move the
flock.l_type = fl->fl_type;
out of the if statement later on. In fact that copying out should
proably move into posix_lock_to_flock and posix_lock_to_fock64
helpers similar to the flock_to_posix_lock and flock64_to_posix_lock
helpers we have for the other way around.
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