Docs/mm: Fix a mistake for pfn in page_tables.rst

The documentation incorrectly calculate the pfn value as 0x3fffff,
which should be 0x3ffff instead. It is obtained by right-shifting
0xffffc000 by 14 bits.

This patch corrects the value to prevent any potential confusion
for developers referencing this document.

Signed-off-by: Pengyu Zhang <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Zenghui Yu <[email protected]>
Reviewed-by: Mike Rapoport (Microsoft) <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions