bcachefs: Fix maximum link count check when creating hard linksbcachefs-testing

When I changed the maximum link count U32_MAX to 4 for testing purposes, I
discovered that for regular files, the maximum number of hard links created
could actually reach 5 (`inode->i_nlink`).

This occurs because `bi->bi_nlink` does not represent the actual `inode->i_nlink`
value, but rather equals `inode->i_nlink - nlink_bias(bi->bi_mode)`. Therefore,
the `bi->bi_nlink` check in bch2_inode_nlink_inc() needs to be corrected.

Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

0 files changed, 0 insertions, 0 deletions