journal_dirty_metadata man page on Scientific

journal_dirty_metadata man page on Scientific

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JOURNAL_DIRTY_METADA(9)	   The Linux Journalling API   JOURNAL_DIRTY_METADA(9)

NAME
       journal_dirty_metadata - mark a buffer as containing dirty metadata

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

ARGUMENTS
       handle
	   transaction to add buffer to.

       bh
	   buffer to mark

DESCRIPTION
       Mark dirty metadata which needs to be journaled as part of the current
       transaction.

       The buffer is placed on the transaction´s metadata list and is marked
       as belonging to the transaction.

       Returns error number or 0 on success.

       Special care needs to be taken if the buffer already belongs to the
       current committing transaction (in which case we should have frozen
       data present for that commit). In that case, we don´t relink the

BUFFER
       that only gets done when the old transaction finally completes its
       commit.

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

       Stephen Tweedie <sct@redhat.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       JOURNAL_DIRTY_METADA(9)

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