JOURNAL_GET_WRITE_AC

Section: The Linux Journalling API (9)
Updated: February 2011
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NAME

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

SYNOPSIS

int 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@computer-surgery.co.uk>

Author.

Stephen Tweedie <sct@redhat.com>

Author.
 

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