JBD2_JOURNAL_GET_WRI(9)             The Linux Journalling API             JBD2_JOURNAL_GET_WRI(9)



NAME
       jbd2_journal_get_write_access - notify intent to modify a buffer for metadata (not data)
       update.

SYNOPSIS
       int jbd2_journal_get_write_access(handle_t * handle, struct buffer_head * bh);

ARGUMENTS
       handle
           transaction to add buffer modifications to

       bh
           bh to be used for metadata writes

DESCRIPTION
       Returns an error code or 0 on success.

       In full data journalling mode the buffer may be of type BJ_AsyncData, because we're
       writeing a buffer which is also part of a shared mapping.

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

       Stephen Tweedie <sct AT redhat.com>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   JBD2_JOURNAL_GET_WRI(9)