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
Cong Wang
Родитель
496cda8e75
Коммит
cfd8005c99
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@ -242,9 +242,9 @@ static void copy_to_brd(struct brd_device *brd, const void *src,
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page = brd_lookup_page(brd, sector);
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BUG_ON(!page);
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dst = kmap_atomic(page, KM_USER1);
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dst = kmap_atomic(page);
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memcpy(dst + offset, src, copy);
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kunmap_atomic(dst, KM_USER1);
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kunmap_atomic(dst);
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if (copy < n) {
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src += copy;
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@ -253,9 +253,9 @@ static void copy_to_brd(struct brd_device *brd, const void *src,
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page = brd_lookup_page(brd, sector);
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BUG_ON(!page);
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dst = kmap_atomic(page, KM_USER1);
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dst = kmap_atomic(page);
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memcpy(dst, src, copy);
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kunmap_atomic(dst, KM_USER1);
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kunmap_atomic(dst);
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}
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}
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@ -273,9 +273,9 @@ static void copy_from_brd(void *dst, struct brd_device *brd,
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copy = min_t(size_t, n, PAGE_SIZE - offset);
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page = brd_lookup_page(brd, sector);
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if (page) {
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src = kmap_atomic(page, KM_USER1);
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src = kmap_atomic(page);
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memcpy(dst, src + offset, copy);
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kunmap_atomic(src, KM_USER1);
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kunmap_atomic(src);
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} else
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memset(dst, 0, copy);
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@ -285,9 +285,9 @@ static void copy_from_brd(void *dst, struct brd_device *brd,
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copy = n - copy;
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page = brd_lookup_page(brd, sector);
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if (page) {
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src = kmap_atomic(page, KM_USER1);
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src = kmap_atomic(page);
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memcpy(dst, src, copy);
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kunmap_atomic(src, KM_USER1);
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kunmap_atomic(src);
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} else
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memset(dst, 0, copy);
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}
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@ -309,7 +309,7 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
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goto out;
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}
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mem = kmap_atomic(page, KM_USER0);
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mem = kmap_atomic(page);
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if (rw == READ) {
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copy_from_brd(mem + off, brd, sector, len);
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flush_dcache_page(page);
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@ -317,7 +317,7 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
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flush_dcache_page(page);
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copy_to_brd(brd, mem + off, sector, len);
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}
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kunmap_atomic(mem, KM_USER0);
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kunmap_atomic(mem);
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out:
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return err;
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@ -292,22 +292,22 @@ static unsigned int bm_bit_to_page_idx(struct drbd_bitmap *b, u64 bitnr)
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static unsigned long *__bm_map_pidx(struct drbd_bitmap *b, unsigned int idx, const enum km_type km)
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{
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struct page *page = b->bm_pages[idx];
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return (unsigned long *) kmap_atomic(page, km);
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return (unsigned long *) kmap_atomic(page);
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}
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static unsigned long *bm_map_pidx(struct drbd_bitmap *b, unsigned int idx)
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{
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return __bm_map_pidx(b, idx, KM_IRQ1);
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return __bm_map_pidx(b, idx);
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}
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static void __bm_unmap(unsigned long *p_addr, const enum km_type km)
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static void __bm_unmap(unsigned long *p_addr)
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{
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kunmap_atomic(p_addr, km);
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kunmap_atomic(p_addr);
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};
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static void bm_unmap(unsigned long *p_addr)
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{
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return __bm_unmap(p_addr, KM_IRQ1);
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return __bm_unmap(p_addr);
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}
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/* long word offset of _bitmap_ sector */
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@ -543,10 +543,10 @@ static unsigned long bm_count_bits(struct drbd_bitmap *b)
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/* all but last page */
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for (idx = 0; idx < b->bm_number_of_pages - 1; idx++) {
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p_addr = __bm_map_pidx(b, idx, KM_USER0);
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p_addr = __bm_map_pidx(b, idx);
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for (i = 0; i < LWPP; i++)
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bits += hweight_long(p_addr[i]);
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__bm_unmap(p_addr, KM_USER0);
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__bm_unmap(p_addr);
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cond_resched();
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}
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/* last (or only) page */
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@ -1163,7 +1163,7 @@ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(loc
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* this returns a bit number, NOT a sector!
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*/
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static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
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const int find_zero_bit, const enum km_type km)
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const int find_zero_bit)
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{
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struct drbd_bitmap *b = mdev->bitmap;
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unsigned long *p_addr;
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@ -1178,7 +1178,7 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
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while (bm_fo < b->bm_bits) {
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/* bit offset of the first bit in the page */
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bit_offset = bm_fo & ~BITS_PER_PAGE_MASK;
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p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo), km);
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p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo));
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if (find_zero_bit)
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i = find_next_zero_bit_le(p_addr,
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@ -1187,7 +1187,7 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
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i = find_next_bit_le(p_addr,
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PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK);
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__bm_unmap(p_addr, km);
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__bm_unmap(p_addr);
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if (i < PAGE_SIZE*8) {
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bm_fo = bit_offset + i;
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if (bm_fo >= b->bm_bits)
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@ -1215,7 +1215,7 @@ static unsigned long bm_find_next(struct drbd_conf *mdev,
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if (BM_DONT_TEST & b->bm_flags)
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bm_print_lock_info(mdev);
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i = __bm_find_next(mdev, bm_fo, find_zero_bit, KM_IRQ1);
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i = __bm_find_next(mdev, bm_fo, find_zero_bit);
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spin_unlock_irq(&b->bm_lock);
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return i;
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@ -1239,13 +1239,13 @@ unsigned long drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo
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unsigned long _drbd_bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo)
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{
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/* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */
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return __bm_find_next(mdev, bm_fo, 0, KM_USER1);
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return __bm_find_next(mdev, bm_fo, 0);
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}
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unsigned long _drbd_bm_find_next_zero(struct drbd_conf *mdev, unsigned long bm_fo)
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{
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/* WARN_ON(!(BM_DONT_SET & mdev->b->bm_flags)); */
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return __bm_find_next(mdev, bm_fo, 1, KM_USER1);
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return __bm_find_next(mdev, bm_fo, 1);
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}
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/* returns number of bits actually changed.
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@ -1273,14 +1273,14 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
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unsigned int page_nr = bm_bit_to_page_idx(b, bitnr);
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if (page_nr != last_page_nr) {
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if (p_addr)
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__bm_unmap(p_addr, KM_IRQ1);
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__bm_unmap(p_addr);
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if (c < 0)
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bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]);
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else if (c > 0)
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bm_set_page_need_writeout(b->bm_pages[last_page_nr]);
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changed_total += c;
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c = 0;
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p_addr = __bm_map_pidx(b, page_nr, KM_IRQ1);
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p_addr = __bm_map_pidx(b, page_nr);
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last_page_nr = page_nr;
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}
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if (val)
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@ -1289,7 +1289,7 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
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c -= (0 != __test_and_clear_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr));
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}
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if (p_addr)
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__bm_unmap(p_addr, KM_IRQ1);
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__bm_unmap(p_addr);
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if (c < 0)
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bm_set_page_lazy_writeout(b->bm_pages[last_page_nr]);
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else if (c > 0)
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@ -1342,13 +1342,13 @@ static inline void bm_set_full_words_within_one_page(struct drbd_bitmap *b,
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{
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int i;
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int bits;
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unsigned long *paddr = kmap_atomic(b->bm_pages[page_nr], KM_IRQ1);
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unsigned long *paddr = kmap_atomic(b->bm_pages[page_nr]);
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for (i = first_word; i < last_word; i++) {
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bits = hweight_long(paddr[i]);
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paddr[i] = ~0UL;
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b->bm_set += BITS_PER_LONG - bits;
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}
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kunmap_atomic(paddr, KM_IRQ1);
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kunmap_atomic(paddr);
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}
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/* Same thing as drbd_bm_set_bits,
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@ -2526,10 +2526,10 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
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page = e->pages;
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page_chain_for_each(page) {
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void *d = kmap_atomic(page, KM_USER0);
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void *d = kmap_atomic(page);
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unsigned l = min_t(unsigned, len, PAGE_SIZE);
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memcpy(tl, d, l);
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kunmap_atomic(d, KM_USER0);
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kunmap_atomic(d);
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tl = (unsigned short*)((char*)tl + l);
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len -= l;
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if (len == 0)
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@ -93,16 +93,16 @@ static int transfer_none(struct loop_device *lo, int cmd,
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struct page *loop_page, unsigned loop_off,
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int size, sector_t real_block)
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{
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char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
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char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
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char *raw_buf = kmap_atomic(raw_page) + raw_off;
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char *loop_buf = kmap_atomic(loop_page) + loop_off;
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if (cmd == READ)
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memcpy(loop_buf, raw_buf, size);
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else
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memcpy(raw_buf, loop_buf, size);
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kunmap_atomic(loop_buf, KM_USER1);
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kunmap_atomic(raw_buf, KM_USER0);
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kunmap_atomic(loop_buf);
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kunmap_atomic(raw_buf);
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cond_resched();
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return 0;
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}
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@ -112,8 +112,8 @@ static int transfer_xor(struct loop_device *lo, int cmd,
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struct page *loop_page, unsigned loop_off,
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int size, sector_t real_block)
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{
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char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
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char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
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char *raw_buf = kmap_atomic(raw_page) + raw_off;
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char *loop_buf = kmap_atomic(loop_page) + loop_off;
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char *in, *out, *key;
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int i, keysize;
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@ -130,8 +130,8 @@ static int transfer_xor(struct loop_device *lo, int cmd,
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for (i = 0; i < size; i++)
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*out++ = *in++ ^ key[(i & 511) % keysize];
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kunmap_atomic(loop_buf, KM_USER1);
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kunmap_atomic(raw_buf, KM_USER0);
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kunmap_atomic(loop_buf);
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kunmap_atomic(raw_buf);
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cond_resched();
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return 0;
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}
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@ -987,14 +987,14 @@ static void pkt_copy_bio_data(struct bio *src_bio, int seg, int offs, struct pag
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while (copy_size > 0) {
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struct bio_vec *src_bvl = bio_iovec_idx(src_bio, seg);
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void *vfrom = kmap_atomic(src_bvl->bv_page, KM_USER0) +
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void *vfrom = kmap_atomic(src_bvl->bv_page) +
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src_bvl->bv_offset + offs;
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void *vto = page_address(dst_page) + dst_offs;
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int len = min_t(int, copy_size, src_bvl->bv_len - offs);
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BUG_ON(len < 0);
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memcpy(vto, vfrom, len);
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kunmap_atomic(vfrom, KM_USER0);
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kunmap_atomic(vfrom);
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seg++;
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offs = 0;
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@ -1019,10 +1019,10 @@ static void pkt_make_local_copy(struct packet_data *pkt, struct bio_vec *bvec)
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offs = 0;
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for (f = 0; f < pkt->frames; f++) {
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if (bvec[f].bv_page != pkt->pages[p]) {
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void *vfrom = kmap_atomic(bvec[f].bv_page, KM_USER0) + bvec[f].bv_offset;
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void *vfrom = kmap_atomic(bvec[f].bv_page) + bvec[f].bv_offset;
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void *vto = page_address(pkt->pages[p]) + offs;
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memcpy(vto, vfrom, CD_FRAMESIZE);
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kunmap_atomic(vfrom, KM_USER0);
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kunmap_atomic(vfrom);
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bvec[f].bv_page = pkt->pages[p];
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bvec[f].bv_offset = offs;
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} else {
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