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Message-Id: <1322371662-26166-18-git-send-email-amwang@redhat.com>
Date: Sun, 27 Nov 2011 13:26:57 +0800
From: Cong Wang <amwang@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: akpm@...ux-foundation.org, Cong Wang <amwang@...hat.com>,
Neil Brown <neilb@...e.de>, linux-raid@...r.kernel.org,
dm-devel@...hat.com
Subject: [PATCH 17/62] md: remove the second argument of k[un]map_atomic()
Signed-off-by: Cong Wang <amwang@...hat.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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