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Commit a481db78 authored by Mikulas Patocka's avatar Mikulas Patocka Committed by Alasdair G Kergon
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dm exception store: introduce area_location function 



Move this logic to a function, because it will be reused later.

Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent f7c83e2e

drivers/md/dm-exception-store.c

+9 −2
Original line number Diff line number Diff line
@@ -208,6 +208,14 @@ static int chunk_io(struct pstore *ps, uint32_t chunk, int rw, int metadata) 
	return req.result;

}



/*

 * Convert a metadata area index to a chunk index.

 */

static chunk_t area_location(struct pstore *ps, chunk_t area)

{

	return 1 + ((ps->exceptions_per_area + 1) * area);

}



/*

 * Read or write a metadata area.  Remembering to skip the first

 * chunk which holds the header.
@@ -217,8 +225,7 @@ static int area_io(struct pstore *ps, uint32_t area, int rw) 
	int r;

	uint32_t chunk;



	/* convert a metadata area index to a chunk index */

	chunk = 1 + ((ps->exceptions_per_area + 1) * area);

	chunk = area_location(ps, area);



	r = chunk_io(ps, chunk, rw, 0);

	if (r)