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Diffstat (limited to 'fs/btrfs/scrub.c')
-rw-r--r--fs/btrfs/scrub.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 60f0e28db31e..bc015f77f3ea 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1091,7 +1091,7 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
if (is_metadata) {
struct btrfs_header *h;
- mapped_buffer = kmap_atomic(sblock->pagev[0].page, KM_USER0);
+ mapped_buffer = kmap_atomic(sblock->pagev[0].page);
h = (struct btrfs_header *)mapped_buffer;
if (sblock->pagev[0].logical != le64_to_cpu(h->bytenr) ||
@@ -1105,7 +1105,7 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
if (!have_csum)
return;
- mapped_buffer = kmap_atomic(sblock->pagev[0].page, KM_USER0);
+ mapped_buffer = kmap_atomic(sblock->pagev[0].page);
}
for (page_num = 0;;) {
@@ -1117,14 +1117,13 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
crc = btrfs_csum_data(root, mapped_buffer, crc,
PAGE_SIZE);
- kunmap_atomic(mapped_buffer, KM_USER0);
+ kunmap_atomic(mapped_buffer);
page_num++;
if (page_num >= sblock->page_count)
break;
BUG_ON(!sblock->pagev[page_num].page);
- mapped_buffer = kmap_atomic(sblock->pagev[page_num].page,
- KM_USER0);
+ mapped_buffer = kmap_atomic(sblock->pagev[page_num].page);
}
btrfs_csum_final(crc, calculated_csum);
@@ -1235,7 +1234,7 @@ static int scrub_checksum_data(struct scrub_block *sblock)
on_disk_csum = sblock->pagev[0].csum;
page = sblock->pagev[0].page;
- buffer = kmap_atomic(page, KM_USER0);
+ buffer = kmap_atomic(page);
len = sdev->sectorsize;
index = 0;
@@ -1243,7 +1242,7 @@ static int scrub_checksum_data(struct scrub_block *sblock)
u64 l = min_t(u64, len, PAGE_SIZE);
crc = btrfs_csum_data(root, buffer, crc, l);
- kunmap_atomic(buffer, KM_USER0);
+ kunmap_atomic(buffer);
len -= l;
if (len == 0)
break;
@@ -1251,7 +1250,7 @@ static int scrub_checksum_data(struct scrub_block *sblock)
BUG_ON(index >= sblock->page_count);
BUG_ON(!sblock->pagev[index].page);
page = sblock->pagev[index].page;
- buffer = kmap_atomic(page, KM_USER0);
+ buffer = kmap_atomic(page);
}
btrfs_csum_final(crc, csum);
@@ -1287,7 +1286,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock)
BUG_ON(sblock->page_count < 1);
page = sblock->pagev[0].page;
- mapped_buffer = kmap_atomic(page, KM_USER0);
+ mapped_buffer = kmap_atomic(page);
h = (struct btrfs_header *)mapped_buffer;
memcpy(on_disk_csum, h->csum, sdev->csum_size);
@@ -1319,7 +1318,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock)
u64 l = min_t(u64, len, mapped_size);
crc = btrfs_csum_data(root, p, crc, l);
- kunmap_atomic(mapped_buffer, KM_USER0);
+ kunmap_atomic(mapped_buffer);
len -= l;
if (len == 0)
break;
@@ -1327,7 +1326,7 @@ static int scrub_checksum_tree_block(struct scrub_block *sblock)
BUG_ON(index >= sblock->page_count);
BUG_ON(!sblock->pagev[index].page);
page = sblock->pagev[index].page;
- mapped_buffer = kmap_atomic(page, KM_USER0);
+ mapped_buffer = kmap_atomic(page);
mapped_size = PAGE_SIZE;
p = mapped_buffer;
}
@@ -1367,7 +1366,7 @@ static int scrub_checksum_super(struct scrub_block *sblock)
BUG_ON(sblock->page_count < 1);
page = sblock->pagev[0].page;
- mapped_buffer = kmap_atomic(page, KM_USER0);
+ mapped_buffer = kmap_atomic(page);
s = (struct btrfs_super_block *)mapped_buffer;
memcpy(on_disk_csum, s->csum, sdev->csum_size);
@@ -1388,7 +1387,7 @@ static int scrub_checksum_super(struct scrub_block *sblock)
u64 l = min_t(u64, len, mapped_size);
crc = btrfs_csum_data(root, p, crc, l);
- kunmap_atomic(mapped_buffer, KM_USER0);
+ kunmap_atomic(mapped_buffer);
len -= l;
if (len == 0)
break;
@@ -1396,7 +1395,7 @@ static int scrub_checksum_super(struct scrub_block *sblock)
BUG_ON(index >= sblock->page_count);
BUG_ON(!sblock->pagev[index].page);
page = sblock->pagev[index].page;
- mapped_buffer = kmap_atomic(page, KM_USER0);
+ mapped_buffer = kmap_atomic(page);
mapped_size = PAGE_SIZE;
p = mapped_buffer;
}