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-rw-r--r--fs/btrfs/check-integrity.c1
-rw-r--r--fs/btrfs/compression.c12
-rw-r--r--fs/btrfs/ctree.h2
-rw-r--r--fs/btrfs/extent_io.c16
-rw-r--r--fs/btrfs/file-item.c4
-rw-r--r--fs/btrfs/free-space-cache.c2
-rw-r--r--fs/btrfs/inode.c26
-rw-r--r--fs/btrfs/lzo.c4
-rw-r--r--fs/btrfs/scrub.c27
-rw-r--r--fs/btrfs/super.c8
-rw-r--r--fs/btrfs/zlib.c4
11 files changed, 50 insertions, 56 deletions
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index d986824..c053e90 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -89,7 +89,6 @@
#include "disk-io.h"
#include "transaction.h"
#include "extent_io.h"
-#include "disk-io.h"
#include "volumes.h"
#include "print-tree.h"
#include "locking.h"
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 646f5e6..86eff48 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -120,10 +120,10 @@ static int check_compressed_csum(struct inode *inode,
page = cb->compressed_pages[i];
csum = ~(u32)0;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
csum = btrfs_csum_data(root, kaddr, csum, PAGE_CACHE_SIZE);
btrfs_csum_final(csum, (char *)&csum);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (csum != *cb_sum) {
printk(KERN_INFO "btrfs csum failed ino %llu "
@@ -521,10 +521,10 @@ static noinline int add_ra_bio_pages(struct inode *inode,
if (zero_offset) {
int zeros;
zeros = PAGE_CACHE_SIZE - zero_offset;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + zero_offset, 0, zeros);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
}
}
@@ -993,9 +993,9 @@ int btrfs_decompress_buf2page(char *buf, unsigned long buf_start,
bytes = min(PAGE_CACHE_SIZE - *pg_offset,
PAGE_CACHE_SIZE - buf_offset);
bytes = min(bytes, working_bytes);
- kaddr = kmap_atomic(page_out, KM_USER0);
+ kaddr = kmap_atomic(page_out);
memcpy(kaddr + *pg_offset, buf + buf_offset, bytes);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page_out);
*pg_offset += bytes;
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index ec42a24..8fd7233 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2166,7 +2166,7 @@ BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
static inline bool btrfs_root_readonly(struct btrfs_root *root)
{
- return root->root_item.flags & BTRFS_ROOT_SUBVOL_RDONLY;
+ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0;
}
/* struct btrfs_root_backup */
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 0c23e57..198c2ba 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2612,10 +2612,10 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
if (zero_offset) {
iosize = PAGE_CACHE_SIZE - zero_offset;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + zero_offset, 0, iosize);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
}
}
while (cur <= end) {
@@ -2624,10 +2624,10 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
struct extent_state *cached = NULL;
iosize = PAGE_CACHE_SIZE - pg_offset;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + pg_offset, 0, iosize);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
set_extent_uptodate(tree, cur, cur + iosize - 1,
&cached, GFP_NOFS);
unlock_extent_cached(tree, cur, cur + iosize - 1,
@@ -2673,10 +2673,10 @@ static int __extent_read_full_page(struct extent_io_tree *tree,
char *userpage;
struct extent_state *cached = NULL;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + pg_offset, 0, iosize);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
set_extent_uptodate(tree, cur, cur + iosize - 1,
&cached, GFP_NOFS);
@@ -2823,10 +2823,10 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
if (page->index == end_index) {
char *userpage;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + pg_offset, 0,
PAGE_CACHE_SIZE - pg_offset);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
flush_dcache_page(page);
}
pg_offset = 0;
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index cab0ffb..5d158d3 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -460,13 +460,13 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
sums->bytenr = ordered->start;
}
- data = kmap_atomic(bvec->bv_page, KM_USER0);
+ data = kmap_atomic(bvec->bv_page);
sector_sum->sum = ~(u32)0;
sector_sum->sum = btrfs_csum_data(root,
data + bvec->bv_offset,
sector_sum->sum,
bvec->bv_len);
- kunmap_atomic(data, KM_USER0);
+ kunmap_atomic(data);
btrfs_csum_final(sector_sum->sum,
(char *)&sector_sum->sum);
sector_sum->bytenr = disk_bytenr;
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index baaa518..202008e 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1065,7 +1065,7 @@ int btrfs_write_out_cache(struct btrfs_root *root,
spin_unlock(&block_group->lock);
ret = 0;
#ifdef DEBUG
- printk(KERN_ERR "btrfs: failed to write free space cace "
+ printk(KERN_ERR "btrfs: failed to write free space cache "
"for block group %llu\n", block_group->key.objectid);
#endif
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3ce7805..61b16c6 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -172,9 +172,9 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
cur_size = min_t(unsigned long, compressed_size,
PAGE_CACHE_SIZE);
- kaddr = kmap_atomic(cpage, KM_USER0);
+ kaddr = kmap_atomic(cpage);
write_extent_buffer(leaf, kaddr, ptr, cur_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
i++;
ptr += cur_size;
@@ -186,10 +186,10 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
page = find_get_page(inode->i_mapping,
start >> PAGE_CACHE_SHIFT);
btrfs_set_file_extent_compression(leaf, ei, 0);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
offset = start & (PAGE_CACHE_SIZE - 1);
write_extent_buffer(leaf, kaddr + offset, ptr, size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
page_cache_release(page);
}
btrfs_mark_buffer_dirty(leaf);
@@ -426,10 +426,10 @@ again:
* sending it down to disk
*/
if (offset) {
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr + offset, 0,
PAGE_CACHE_SIZE - offset);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
will_compress = 1;
}
@@ -1979,7 +1979,7 @@ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end,
} else {
ret = get_state_private(io_tree, start, &private);
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (ret)
goto zeroit;
@@ -1988,7 +1988,7 @@ static int btrfs_readpage_end_io_hook(struct page *page, u64 start, u64 end,
if (csum != private)
goto zeroit;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
good:
return 0;
@@ -2000,7 +2000,7 @@ zeroit:
(unsigned long long)private);
memset(kaddr + offset, 1, end - start + 1);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (private == 0)
return 0;
return -EIO;
@@ -5079,12 +5079,12 @@ static noinline int uncompress_inline(struct btrfs_path *path,
ret = btrfs_decompress(compress_type, tmp, page,
extent_offset, inline_size, max_size);
if (ret) {
- char *kaddr = kmap_atomic(page, KM_USER0);
+ char *kaddr = kmap_atomic(page);
unsigned long copy_size = min_t(u64,
PAGE_CACHE_SIZE - pg_offset,
max_size - extent_offset);
memset(kaddr + pg_offset, 0, copy_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
kfree(tmp);
return 0;
@@ -5862,11 +5862,11 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
unsigned long flags;
local_irq_save(flags);
- kaddr = kmap_atomic(page, KM_IRQ0);
+ kaddr = kmap_atomic(page);
csum = btrfs_csum_data(root, kaddr + bvec->bv_offset,
csum, bvec->bv_len);
btrfs_csum_final(csum, (char *)&csum);
- kunmap_atomic(kaddr, KM_IRQ0);
+ kunmap_atomic(kaddr);
local_irq_restore(flags);
flush_dcache_page(bvec->bv_page);
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index a178f5e..743b86f 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -411,9 +411,9 @@ static int lzo_decompress(struct list_head *ws, unsigned char *data_in,
bytes = min_t(unsigned long, destlen, out_len - start_byte);
- kaddr = kmap_atomic(dest_page, KM_USER0);
+ kaddr = kmap_atomic(dest_page);
memcpy(kaddr, workspace->buf + start_byte, bytes);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
out:
return ret;
}
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index b679bf6..4f76fc3 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);
@@ -1281,7 +1280,7 @@ 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);
@@ -1313,7 +1312,7 @@ 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;
@@ -1321,7 +1320,7 @@ 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;
}
@@ -1352,7 +1351,7 @@ 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);
@@ -1373,7 +1372,7 @@ 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;
@@ -1381,7 +1380,7 @@ 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;
}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f267718..c5f8fca 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -755,7 +755,6 @@ static int btrfs_fill_super(struct super_block *sb,
void *data, int silent)
{
struct inode *inode;
- struct dentry *root_dentry;
struct btrfs_fs_info *fs_info = btrfs_sb(sb);
struct btrfs_key key;
int err;
@@ -786,15 +785,12 @@ static int btrfs_fill_super(struct super_block *sb,
goto fail_close;
}
- root_dentry = d_alloc_root(inode);
- if (!root_dentry) {
- iput(inode);
+ sb->s_root = d_make_root(inode);
+ if (!sb->s_root) {
err = -ENOMEM;
goto fail_close;
}
- sb->s_root = root_dentry;
-
save_mount_options(sb, data);
cleancache_init_fs(sb);
sb->s_flags |= MS_ACTIVE;
diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c
index faccd47..92c2065 100644
--- a/fs/btrfs/zlib.c
+++ b/fs/btrfs/zlib.c
@@ -370,9 +370,9 @@ static int zlib_decompress(struct list_head *ws, unsigned char *data_in,
PAGE_CACHE_SIZE - buf_offset);
bytes = min(bytes, bytes_left);
- kaddr = kmap_atomic(dest_page, KM_USER0);
+ kaddr = kmap_atomic(dest_page);
memcpy(kaddr + pg_offset, workspace->buf + buf_offset, bytes);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
pg_offset += bytes;
bytes_left -= bytes;
generated by cgit v0.10.2 at 2024-11-14 02:46:44 (GMT)