.\" This documentation was generated from the book titled "The Linux Journalling API", which is part of the Linux kernel source. .\" .\" Documentation by: Roger Gammans (rgammans@computer-surgery.co.uk) .\" Documentation by: Stephen Tweedie (sct@redhat.com) .\" Documentation copyright: 2002 Roger Gammans .\" This documentation comes with the following legal notice: .\" .\" This documentation is free software; you can redistribute .\" it and/or modify it under the terms of the GNU General Public .\" License as published by the Free Software Foundation; either .\" version 2 of the License, or (at your option) any later .\" version. .\" .\" This program is distributed in the hope that it will be .\" useful, but WITHOUT ANY WARRANTY; without even the implied .\" warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. .\" See the GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public .\" License along with this program; if not, write to the Free .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, .\" MA 02111-1307 USA .\" .\" For more details see the file COPYING in the source .\" distribution of Linux. .\" .\" For comments on the formatting of this manpage, please contact Michael Still .\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "HANDLE_T" "9" "07 August 2003" "" "" .SH NAME typedef handle_t \- The handle_t type represents a single atomic update being performed by some process. .SH SYNOPSIS .nf typedef handle_t; .fi .SH "DESCRIPTION" .PP .PP All filesystem modifications made by the process go through this handle. Recursive operations (such as quota operations) are gathered into a single update. .PP 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. .PP This is an opaque datatype. .SH "ABOUT THIS DOCUMENT" .PP This documentation was generated with kernel version 2.6.0.