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[dm-devel] [PATCH 17/62] md: remove the second argument of k[un]map_atomic()



Signed-off-by: Cong Wang <amwang redhat com>
---
 drivers/md/bitmap.c   |   36 ++++++++++++++++++------------------
 drivers/md/dm-crypt.c |    8 ++++----
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 7878712..8659515 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -457,7 +457,7 @@ void bitmap_update_sb(struct bitmap *bitmap)
 		return;
 	}
 	spin_unlock_irqrestore(&bitmap->lock, flags);
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 	sb->events = cpu_to_le64(bitmap->mddev->events);
 	if (bitmap->mddev->events < bitmap->events_cleared)
 		/* rocking back to read-only */
@@ -467,7 +467,7 @@ void bitmap_update_sb(struct bitmap *bitmap)
 	/* Just in case these have been changed via sysfs: */
 	sb->daemon_sleep = cpu_to_le32(bitmap->mddev->bitmap_info.daemon_sleep/HZ);
 	sb->write_behind = cpu_to_le32(bitmap->mddev->bitmap_info.max_write_behind);
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 	write_page(bitmap, bitmap->sb_page, 1);
 }
 
@@ -478,7 +478,7 @@ void bitmap_print_sb(struct bitmap *bitmap)
 
 	if (!bitmap || !bitmap->sb_page)
 		return;
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 	printk(KERN_DEBUG "%s: bitmap file superblock:\n", bmname(bitmap));
 	printk(KERN_DEBUG "         magic: %08x\n", le32_to_cpu(sb->magic));
 	printk(KERN_DEBUG "       version: %d\n", le32_to_cpu(sb->version));
@@ -497,7 +497,7 @@ void bitmap_print_sb(struct bitmap *bitmap)
 	printk(KERN_DEBUG "     sync size: %llu KB\n",
 			(unsigned long long)le64_to_cpu(sb->sync_size)/2);
 	printk(KERN_DEBUG "max write behind: %d\n", le32_to_cpu(sb->write_behind));
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 }
 
 /*
@@ -603,7 +603,7 @@ static int bitmap_read_sb(struct bitmap *bitmap)
 		return err;
 	}
 
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 
 	chunksize = le32_to_cpu(sb->chunksize);
 	daemon_sleep = le32_to_cpu(sb->daemon_sleep) * HZ;
@@ -664,7 +664,7 @@ success:
 		bitmap->events_cleared = bitmap->mddev->events;
 	err = 0;
 out:
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 	if (err)
 		bitmap_print_sb(bitmap);
 	return err;
@@ -689,7 +689,7 @@ static int bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits,
 		return 0;
 	}
 	spin_unlock_irqrestore(&bitmap->lock, flags);
-	sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+	sb = kmap_atomic(bitmap->sb_page);
 	old = le32_to_cpu(sb->state) & bits;
 	switch (op) {
 	case MASK_SET:
@@ -703,7 +703,7 @@ static int bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits,
 	default:
 		BUG();
 	}
-	kunmap_atomic(sb, KM_USER0);
+	kunmap_atomic(sb);
 	return old;
 }
 
@@ -881,12 +881,12 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block)
 	bit = file_page_offset(bitmap, chunk);
 
 	/* set the bit */
-	kaddr = kmap_atomic(page, KM_USER0);
+	kaddr = kmap_atomic(page);
 	if (bitmap->flags & BITMAP_HOSTENDIAN)
 		set_bit(bit, kaddr);
 	else
 		__set_bit_le(bit, kaddr);
-	kunmap_atomic(kaddr, KM_USER0);
+	kunmap_atomic(kaddr);
 	pr_debug("set file bit %lu page %lu\n", bit, page->index);
 	/* record page number so it gets flushed to disk when unplug occurs */
 	set_page_attr(bitmap, page, BITMAP_PAGE_DIRTY);
@@ -1050,10 +1050,10 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
 				 * if bitmap is out of date, dirty the
 				 * whole page and write it out
 				 */
-				paddr = kmap_atomic(page, KM_USER0);
+				paddr = kmap_atomic(page);
 				memset(paddr + offset, 0xff,
 				       PAGE_SIZE - offset);
-				kunmap_atomic(paddr, KM_USER0);
+				kunmap_atomic(paddr);
 				write_page(bitmap, page, 1);
 
 				ret = -EIO;
@@ -1061,12 +1061,12 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
 					goto err;
 			}
 		}
-		paddr = kmap_atomic(page, KM_USER0);
+		paddr = kmap_atomic(page);
 		if (bitmap->flags & BITMAP_HOSTENDIAN)
 			b = test_bit(bit, paddr);
 		else
 			b = test_bit_le(bit, paddr);
-		kunmap_atomic(paddr, KM_USER0);
+		kunmap_atomic(paddr);
 		if (b) {
 			/* if the disk bit is set, set the memory bit */
 			int needed = ((sector_t)(i+1) << (CHUNK_BLOCK_SHIFT(bitmap))
@@ -1207,10 +1207,10 @@ void bitmap_daemon_work(struct mddev *mddev)
 			    bitmap->mddev->bitmap_info.external == 0) {
 				bitmap_super_t *sb;
 				bitmap->need_sync = 0;
-				sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+				sb = kmap_atomic(bitmap->sb_page);
 				sb->events_cleared =
 					cpu_to_le64(bitmap->events_cleared);
-				kunmap_atomic(sb, KM_USER0);
+				kunmap_atomic(sb);
 				write_page(bitmap, bitmap->sb_page, 1);
 			}
 			spin_lock_irqsave(&bitmap->lock, flags);
@@ -1233,7 +1233,7 @@ void bitmap_daemon_work(struct mddev *mddev)
 						  -1);
 
 				/* clear the bit */
-				paddr = kmap_atomic(page, KM_USER0);
+				paddr = kmap_atomic(page);
 				if (bitmap->flags & BITMAP_HOSTENDIAN)
 					clear_bit(file_page_offset(bitmap, j),
 						  paddr);
@@ -1242,7 +1242,7 @@ void bitmap_daemon_work(struct mddev *mddev)
 						file_page_offset(bitmap,
 								 j),
 						paddr);
-				kunmap_atomic(paddr, KM_USER0);
+				kunmap_atomic(paddr);
 			} else if (*bmc <= 2) {
 				*bmc = 1; /* maybe clear the bit next time */
 				set_page_attr(bitmap, page, BITMAP_PAGE_PENDING);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8c2a000..db6b516 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -590,9 +590,9 @@ static int crypt_iv_lmk_gen(struct crypt_config *cc, u8 *iv,
 	int r = 0;
 
 	if (bio_data_dir(dmreq->ctx->bio_in) == WRITE) {
-		src = kmap_atomic(sg_page(&dmreq->sg_in), KM_USER0);
+		src = kmap_atomic(sg_page(&dmreq->sg_in));
 		r = crypt_iv_lmk_one(cc, iv, dmreq, src + dmreq->sg_in.offset);
-		kunmap_atomic(src, KM_USER0);
+		kunmap_atomic(src);
 	} else
 		memset(iv, 0, cc->iv_size);
 
@@ -608,14 +608,14 @@ static int crypt_iv_lmk_post(struct crypt_config *cc, u8 *iv,
 	if (bio_data_dir(dmreq->ctx->bio_in) == WRITE)
 		return 0;
 
-	dst = kmap_atomic(sg_page(&dmreq->sg_out), KM_USER0);
+	dst = kmap_atomic(sg_page(&dmreq->sg_out));
 	r = crypt_iv_lmk_one(cc, iv, dmreq, dst + dmreq->sg_out.offset);
 
 	/* Tweak the first block of plaintext sector */
 	if (!r)
 		crypto_xor(dst + dmreq->sg_out.offset, iv, cc->iv_size);
 
-	kunmap_atomic(dst, KM_USER0);
+	kunmap_atomic(dst);
 	return r;
 }
 
-- 
1.7.4.4


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