typedef_handle_t(9) centos man page | unix.com

TYPEDEF 
HANDLE_T(9)					     The Linux Journalling API					       TYPEDEF HANDLE_T(9)

NAME
       typedef_handle_t - The handle_t type represents a single atomic update being performed by some process.

SYNOPSIS
       typedef handle_t;

DESCRIPTION
       All filesystem modifications made by the process go through this handle. Recursive operations (such as quota operations) are gathered into
       a single update.

       The buffer credits field is used to account for journaled buffers being modified by the running process. To ensure that there is enough log
       space for all outstanding operations, we need to limit the number of outstanding buffers possible at any time. When the operation
       completes, any buffer credits not used are credited back to the transaction, so that at all times we know how many buffers the outstanding
       updates on a transaction might possibly touch.

       This is an opaque datatype.

AUTHORS
       Roger Gammans <rgammans@computer-surgery.co.uk>
	   Author.

       Stephen Tweedie <sct@redhat.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual						     June 2014						       TYPEDEF HANDLE_T(9)