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| author |   David Sterba <dsterba@suse.com> | 2018-06-29 10:56:44 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-08-06 13:12:43 +0200 |
| commit | 69d2480456d1baf027a86e530989d7bedd698d5f (patch) | |
| tree | d8ea7d3361136fb4620ce85ce2ea64ae6454c55a /fs/btrfs/raid56.c | |
| parent | btrfs: simplify pointer chasing of local fs_info variables (diff) | |
| download | linux-dev-69d2480456d1baf027a86e530989d7bedd698d5f.tar.xz linux-dev-69d2480456d1baf027a86e530989d7bedd698d5f.zip | |
btrfs: use copy_page for copying pages instead of memcpy
Use the helper that's possibly optimized for full page copies.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 5e4ad134b9ad..27ed47a23f26 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -260,7 +260,7 @@ static void cache_rbio_pages(struct btrfs_raid_bio *rbio) s = kmap(rbio->bio_pages[i]); d = kmap(rbio->stripe_pages[i]); - memcpy(d, s, PAGE_SIZE); + copy_page(d, s); kunmap(rbio->bio_pages[i]); kunmap(rbio->stripe_pages[i]); @@ -1275,7 +1275,7 @@ static noinline void finish_rmw(struct btrfs_raid_bio *rbio) pointers); } else { /* raid5 */ - memcpy(pointers[nr_data], pointers[0], PAGE_SIZE); + copy_page(pointers[nr_data], pointers[0]); run_xor(pointers + 1, nr_data - 1, PAGE_SIZE); } @@ -1941,9 +1941,7 @@ static void __raid_recover_end_io(struct btrfs_raid_bio *rbio) BUG_ON(failb != -1); pstripe: /* Copy parity block into failed block to start with */ - memcpy(pointers[faila], - pointers[rbio->nr_data], - PAGE_SIZE); + copy_page(pointers[faila], pointers[rbio->nr_data]); /* rearrange the pointer array */ p = pointers[faila]; @@ -2448,7 +2446,7 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio, pointers); } else { /* raid5 */ - memcpy(pointers[nr_data], pointers[0], PAGE_SIZE); + copy_page(pointers[nr_data], pointers[0]); run_xor(pointers + 1, nr_data - 1, PAGE_SIZE); } @@ -2456,7 +2454,7 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio, p = rbio_stripe_page(rbio, rbio->scrubp, pagenr); parity = kmap(p); if (memcmp(parity, pointers[rbio->scrubp], PAGE_SIZE)) - memcpy(parity, pointers[rbio->scrubp], PAGE_SIZE); + copy_page(parity, pointers[rbio->scrubp]); else /* Parity is right, needn't writeback */ bitmap_clear(rbio->dbitmap, pagenr, 1); |