dm-crypt: rename sector to cc_sector

Rename sector to cc_sector. This is preparation for the following patch
that merges dm_io and convert_context, both have "sector" field, so
we have to rename one.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 drivers/md/dm-crypt.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Index: linux-3.2-fast/drivers/md/dm-crypt.c
===================================================================
--- linux-3.2-fast.orig/drivers/md/dm-crypt.c	2012-02-18 17:11:33.000000000 +0100
+++ linux-3.2-fast/drivers/md/dm-crypt.c	2012-02-18 17:11:36.000000000 +0100
@@ -46,7 +46,7 @@ struct convert_context {
 	unsigned int offset_out;
 	unsigned int idx_in;
 	unsigned int idx_out;
-	sector_t sector;
+	sector_t cc_sector;
 	atomic_t cc_pending;
 };
 
@@ -646,7 +646,7 @@ static void crypt_convert_init(struct cr
 	ctx->offset_out = 0;
 	ctx->idx_in = bio_in ? bio_in->bi_idx : 0;
 	ctx->idx_out = bio_out ? bio_out->bi_idx : 0;
-	ctx->sector = sector + cc->iv_offset;
+	ctx->cc_sector = sector + cc->iv_offset;
 }
 
 static struct dm_crypt_request *dmreq_of_req(struct crypt_config *cc,
@@ -755,7 +755,7 @@ static int crypt_convert_block(struct cr
 	dmreq = dmreq_of_req(cc, req);
 	iv = iv_of_dmreq(cc, dmreq);
 
-	dmreq->iv_sector = ctx->sector;
+	dmreq->iv_sector = ctx->cc_sector;
 	dmreq->ctx = ctx;
 	sg_init_table(&dmreq->sg_in, 1);
 	sg_set_page(&dmreq->sg_in, bv_in->bv_page, 1 << SECTOR_SHIFT,
@@ -794,7 +794,7 @@ static int crypt_convert_block(struct cr
 static struct ablkcipher_request *crypt_alloc_req(struct crypt_config *cc,
 			    struct convert_context *ctx, gfp_t gfp_mask)
 {
-	unsigned key_index = ctx->sector & (cc->tfms_count - 1);
+	unsigned key_index = ctx->cc_sector & (cc->tfms_count - 1);
 	struct ablkcipher_request *req = mempool_alloc(cc->req_pool, gfp_mask);
 	if (!req)
 		return NULL;
@@ -862,7 +862,7 @@ static int crypt_convert(struct crypt_co
 			goto ret;
 		}
 
-		ctx->sector++;
+		ctx->cc_sector++;
 
 		if (ctx->idx_in < ctx->bio_in->bi_vcnt &&
 		    ctx->idx_out < ctx->bio_out->bi_vcnt) {