BH_UPTODATE_OR_LOCK(9) The Linux VFS BH_UPTODATE_OR_LOCK(9)NAMEbh_uptodate_or_lock - Test whether the buffer is uptodate
SYNOPSIS
int bh_uptodate_or_lock(struct buffer_head * bh);
ARGUMENTS
bh
struct buffer_head
DESCRIPTION
Return true if the buffer is up-to-date and false, with the buffer
locked, if not.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 BH_UPTODATE_OR_LOCK(9)