In debugging a LTP failure related to fcntl on tmpfs it appears that
we aren't able to use fcntl(fd, F_SETLEASE, F_WRLCK). In the
debugging it looks like we artificial increase the dentry->d_count
and so generic_setlease() always fails with -EAGAIN since it appears
dentry->d_count will be 2.
This is my first time delving into fs code so I'm not that familiar
with why tmpfs is artificially increasing the d_count. I was
wondering what a possible solution would be.
Maybe something like:
shmem_setlease(...) {
if (arg == F_WRLCK) {
dput(dentry)
generic_setlease(...)
dget(dentry)
} else {
generic_setlease(...)
}
}
Not sure what harm doing the dput() / dget() will have.
- k
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
