jbd2_journal_get_write_access (9) - Linux Man Pages

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

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.co.uk>

Author.

Stephen Tweedie <sct [at] redhat.com>

Author.

COPYRIGHT