jbd2_journal_get_write_access(9) 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 <[email protected]>

Author.

Stephen Tweedie <[email protected]>

Author.

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