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block: remove the second argument of k[un]map_atomic() 

Signed-off-by: Cong Wang <amwang@redhat.com>
This commit is contained in:
Cong Wang 2011-11-25 23:14:18 +08:00 committed by Cong Wang
parent 496cda8e75
commit cfd8005c99
5 changed files with 42 additions and 42 deletions
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20
drivers/block/brd.c
View File

@ -242,9 +242,9 @@ static void copy_to_brd(struct brd_device *brd, const void *src,
page = brd_lookup_page(brd, sector);
BUG_ON(!page);
dst = kmap_atomic(page, KM_USER1);
dst = kmap_atomic(page);
memcpy(dst + offset, src, copy);
kunmap_atomic(dst, KM_USER1);
kunmap_atomic(dst);
if (copy < n) {
src += copy;
@ -253,9 +253,9 @@ static void copy_to_brd(struct brd_device *brd, const void *src,
page = brd_lookup_page(brd, sector);
BUG_ON(!page);
dst = kmap_atomic(page, KM_USER1);
dst = kmap_atomic(page);
memcpy(dst, src, copy);
kunmap_atomic(dst, KM_USER1);
kunmap_atomic(dst);
}
}
@ -273,9 +273,9 @@ static void copy_from_brd(void *dst, struct brd_device *brd,
copy = min_t(size_t, n, PAGE_SIZE - offset);
page = brd_lookup_page(brd, sector);
if (page) {
src = kmap_atomic(page, KM_USER1);
src = kmap_atomic(page);
memcpy(dst, src + offset, copy);
kunmap_atomic(src, KM_USER1);
kunmap_atomic(src);
} else
memset(dst, 0, copy);
@ -285,9 +285,9 @@ static void copy_from_brd(void *dst, struct brd_device *brd,
copy = n - copy;
page = brd_lookup_page(brd, sector);
if (page) {
src = kmap_atomic(page, KM_USER1);
src = kmap_atomic(page);
memcpy(dst, src, copy);
kunmap_atomic(src, KM_USER1);
kunmap_atomic(src);
} else
memset(dst, 0, copy);
}
@ -309,7 +309,7 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
goto out;
}
mem = kmap_atomic(page, KM_USER0);
mem = kmap_atomic(page);
if (rw == READ) {
copy_from_brd(mem + off, brd, sector, len);
flush_dcache_page(page);
@ -317,7 +317,7 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
flush_dcache_page(page);
copy_to_brd(brd, mem + off, sector, len);
}
kunmap_atomic(mem, KM_USER0);
kunmap_atomic(mem);
out:
return err;

36
drivers/block/drbd/drbd_bitmap.c
View File

@ -292,22 +292,22 @@ static unsigned int bm_bit_to_page_idx(struct drbd_bitmap *b, u64 bitnr)
static unsigned long *__bm_map_pidx(struct drbd_bitmap *b, unsigned int idx, const enum km_type km)
{
struct page *page = b->bm_pages[idx];
return (unsigned long *) kmap_atomic(page, km);
return (unsigned long *) kmap_atomic(page);
}
static unsigned long *bm_map_pidx(struct drbd_bitmap *b, unsigned int idx)
{
return __bm_map_pidx(b, idx, KM_IRQ1);
return __bm_map_pidx(b, idx);
}
static void __bm_unmap(unsigned long *p_addr, const enum km_type km)
static void __bm_unmap(unsigned long *p_addr)
{
kunmap_atomic(p_addr, km);
kunmap_atomic(p_addr);
};
static void bm_unmap(unsigned long *p_addr)
{
return __bm_unmap(p_addr, KM_IRQ1);
return __bm_unmap(p_addr);
}
/* long word offset of _bitmap_ sector */
@ -543,10 +543,10 @@ static unsigned long bm_count_bits(struct drbd_bitmap *b)
/* all but last page */
for (idx = 0; idx < b->bm_number_of_pages - 1; idx++) {
p_addr = __bm_map_pidx(b, idx, KM_USER0);
p_addr = __bm_map_pidx(b, idx);
for (i = 0; i < LWPP; i++)
bits += hweight_long(p_addr[i]);
__bm_unmap(p_addr, KM_USER0);
__bm_unmap(p_addr);
cond_resched();
}
/* last (or only) page */
@ -1163,7 +1163,7 @@ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(loc
* this returns a bit number, NOT a sector!
*/
static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
const int find_zero_bit, const enum km_type km)
const int find_zero_bit)
{
struct drbd_bitmap *b = mdev->bitmap;
unsigned long *p_addr;
@ -1178,7 +1178,7 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
while (bm_fo < b->bm_bits) {
/* bit offset of the first bit in the page */
bit_offset = bm_fo & ~BITS_PER_PAGE_MASK;
p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo), km);
p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo));
if (find_zero_bit)
i = find_next_zero_bit_le(p_addr,
@ -1187,7 +1187,7 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
i = find_next_bit_le(p_addr,
PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK);
__bm_unmap(p_addr, km);
__bm_unmap(p_addr);
if (i < PAGE_SIZE*8) {
bm_fo = bit_offset + i;
if (bm_fo >= b->bm_bits)
@ -1215,7 +1215,7 @@ static unsigned long bm_find_next(struct drbd_conf *mdev,
if (BM_DONT_TEST & b->bm_flags)
bm_print_lock_info(mdev);
i = __bm_find_next(mdev, bm_fo, find_zero_bit, KM_IRQ1);
i = __bm_find_next(mdev, bm_fo, find_zero_bit);
spin_unlock_irq(&b->bm_lock);
return i;
@ -1239,13 +1239,13 @@ unsigned long drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo
unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo)
{
/* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */
return __bm_find_next(mdev, bm_fo, 0, KM_USER1);
return __bm_find_next(mdev, bm_fo, 0);
}
unsigned long _drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo)
{
/* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */
return __bm_find_next(mdev, bm_fo, 1, KM_USER1);
return __bm_find_next(mdev, bm_fo, 1);
}
/* returns number of bits actually changed.
@ -1273,14 +1273,14 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
unsigned int page_nr = bm_bit_to_page_idx(b, bitnr);
if (page_nr != last_page_nr) {
if (p_addr)
__bm_unmap(p_addr, KM_IRQ1);
__bm_unmap(p_addr);
if (c < 0)
bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]);
else if (c > 0)
bm_set_page_need_writeout(b->bm_pages[last_page_nr]);
changed_total += c;
c = 0;
p_addr = __bm_map_pidx(b, page_nr, KM_IRQ1);
p_addr = __bm_map_pidx(b, page_nr);
last_page_nr = page_nr;
}
if (val)
@ -1289,7 +1289,7 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
c -= (0 != __test_and_clear_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr));
}
if (p_addr)
__bm_unmap(p_addr, KM_IRQ1);
__bm_unmap(p_addr);
if (c < 0)
bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]);
else if (c > 0)
@ -1342,13 +1342,13 @@ static inline void bm_set_full_words_within_one_page(struct drbd_bitmap *b,
{
int i;
int bits;
unsigned long *paddr = kmap_atomic(b->bm_pages[page_nr], KM_IRQ1);
unsigned long *paddr = kmap_atomic(b->bm_pages[page_nr]);
for (i = first_word; i < last_word; i++) {
bits = hweight_long(paddr[i]);
paddr[i] = ~0UL;
b->bm_set += BITS_PER_LONG - bits;
}
kunmap_atomic(paddr, KM_IRQ1);
kunmap_atomic(paddr);
}
/* Same thing as drbd_bm_set_bits,

4
drivers/block/drbd/drbd_nl.c
View File

@ -2526,10 +2526,10 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
page = e->pages;
page_chain_for_each(page) {
void *d = kmap_atomic(page, KM_USER0);
void *d = kmap_atomic(page);
unsigned l = min_t(unsigned, len, PAGE_SIZE);
memcpy(tl, d, l);
kunmap_atomic(d, KM_USER0);
kunmap_atomic(d);
tl = (unsigned short*)((char*)tl + l);
len -= l;
if (len == 0)

16
drivers/block/loop.c
View File

@ -93,16 +93,16 @@ static int transfer_none(struct loop_device *lo, int cmd,
struct page *loop_page, unsigned loop_off,
int size, sector_t real_block)
{
char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
char *raw_buf = kmap_atomic(raw_page) + raw_off;
char *loop_buf = kmap_atomic(loop_page) + loop_off;
if (cmd == READ)
memcpy(loop_buf, raw_buf, size);
else
memcpy(raw_buf, loop_buf, size);
kunmap_atomic(loop_buf, KM_USER1);
kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf);
kunmap_atomic(raw_buf);
cond_resched();
return 0;
}
@ -112,8 +112,8 @@ static int transfer_xor(struct loop_device *lo, int cmd,
struct page *loop_page, unsigned loop_off,
int size, sector_t real_block)
{
char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
char *raw_buf = kmap_atomic(raw_page) + raw_off;
char *loop_buf = kmap_atomic(loop_page) + loop_off;
char *in, *out, *key;
int i, keysize;
@ -130,8 +130,8 @@ static int transfer_xor(struct loop_device *lo, int cmd,
for (i = 0; i < size; i++)
*out++ = *in++ ^ key[(i & 511) % keysize];
kunmap_atomic(loop_buf, KM_USER1);
kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf);
kunmap_atomic(raw_buf);
cond_resched();
return 0;
}

8
drivers/block/pktcdvd.c
View File

@ -987,14 +987,14 @@ static void pkt_copy_bio_data(struct bio *src_bio, int seg, int offs, struct pag
while (copy_size > 0) {
struct bio_vec *src_bvl = bio_iovec_idx(src_bio, seg);
void *vfrom = kmap_atomic(src_bvl->bv_page, KM_USER0) +
void *vfrom = kmap_atomic(src_bvl->bv_page) +
src_bvl->bv_offset + offs;
void *vto = page_address(dst_page) + dst_offs;
int len = min_t(int, copy_size, src_bvl->bv_len - offs);
BUG_ON(len < 0);
memcpy(vto, vfrom, len);
kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vfrom);
seg++;
offs = 0;
@ -1019,10 +1019,10 @@ static void pkt_make_local_copy(struct packet_data *pkt, struct bio_vec *bvec)
offs = 0;
for (f = 0; f < pkt->frames; f++) {
if (bvec[f].bv_page != pkt->pages[p]) {
void *vfrom = kmap_atomic(bvec[f].bv_page, KM_USER0) + bvec[f].bv_offset;
void *vfrom = kmap_atomic(bvec[f].bv_page) + bvec[f].bv_offset;
void *vto = page_address(pkt->pages[p]) + offs;
memcpy(vto, vfrom, CD_FRAMESIZE);
kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vfrom);
bvec[f].bv_page = pkt->pages[p];
bvec[f].bv_offset = offs;
} else {