summaryrefslogtreecommitdiffstats
path: root/fs/btrfs/extent_io.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs/extent_io.c')
-rw-r--r--fs/btrfs/extent_io.c112
1 files changed, 69 insertions, 43 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 1e67723c27a1..4ac383a3a649 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2029,7 +2029,7 @@ int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical,
* read repair operation.
*/
btrfs_bio_counter_inc_blocked(fs_info);
- ret = btrfs_map_block(fs_info, WRITE, logical,
+ ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, logical,
&map_length, &bbio, mirror_num);
if (ret) {
btrfs_bio_counter_dec(fs_info);
@@ -2067,20 +2067,20 @@ int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical,
return 0;
}
-int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb,
- int mirror_num)
+int repair_eb_io_failure(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *eb, int mirror_num)
{
u64 start = eb->start;
unsigned long i, num_pages = num_extent_pages(eb->start, eb->len);
int ret = 0;
- if (root->fs_info->sb->s_flags & MS_RDONLY)
+ if (fs_info->sb->s_flags & MS_RDONLY)
return -EROFS;
for (i = 0; i < num_pages; i++) {
struct page *p = eb->pages[i];
- ret = repair_io_failure(root->fs_info->btree_inode, start,
+ ret = repair_io_failure(fs_info->btree_inode, start,
PAGE_SIZE, start, p,
start - page_offset(p), mirror_num);
if (ret)
@@ -2341,6 +2341,7 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio,
struct page *page, int pg_offset, int icsum,
bio_end_io_t *endio_func, void *data)
{
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct bio *bio;
struct btrfs_io_bio *btrfs_failed_bio;
struct btrfs_io_bio *btrfs_bio;
@@ -2351,13 +2352,12 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio,
bio->bi_end_io = endio_func;
bio->bi_iter.bi_sector = failrec->logical >> 9;
- bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
+ bio->bi_bdev = fs_info->fs_devices->latest_bdev;
bio->bi_iter.bi_size = 0;
bio->bi_private = data;
btrfs_failed_bio = btrfs_io_bio(failed_bio);
if (btrfs_failed_bio->csum) {
- struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info;
u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
btrfs_bio = btrfs_io_bio(bio);
@@ -2474,6 +2474,8 @@ static void end_bio_extent_writepage(struct bio *bio)
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
+ struct inode *inode = page->mapping->host;
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
/* We always issue full-page reads, but if some block
* in a page fails to read, blk_update_request() will
@@ -2482,11 +2484,11 @@ static void end_bio_extent_writepage(struct bio *bio)
* if they don't add up to a full page. */
if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) {
if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE)
- btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info,
+ btrfs_err(fs_info,
"partial page write in btrfs with offset %u and length %u",
bvec->bv_offset, bvec->bv_len);
else
- btrfs_info(BTRFS_I(page->mapping->host)->root->fs_info,
+ btrfs_info(fs_info,
"incomplete page write in btrfs with offset %u and length %u",
bvec->bv_offset, bvec->bv_len);
}
@@ -3741,16 +3743,15 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
if (btrfs_header_level(eb) > 0) {
end = btrfs_node_key_ptr_offset(nritems);
- memset_extent_buffer(eb, 0, end, eb->len - end);
+ memzero_extent_buffer(eb, end, eb->len - end);
} else {
/*
* leaf:
* header 0 1 2 .. N ... data_N .. data_2 data_1 data_0
*/
start = btrfs_item_nr_offset(nritems);
- end = btrfs_leaf_data(eb) +
- leaf_data_end(fs_info->tree_root, eb);
- memset_extent_buffer(eb, 0, start, end - start);
+ end = btrfs_leaf_data(eb) + leaf_data_end(fs_info, eb);
+ memzero_extent_buffer(eb, start, end - start);
}
for (i = 0; i < num_pages; i++) {
@@ -4341,7 +4342,7 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode,
u64 last,
get_extent_t *get_extent)
{
- u64 sectorsize = BTRFS_I(inode)->root->sectorsize;
+ u64 sectorsize = btrfs_inode_sectorsize(inode);
struct extent_map *em;
u64 len;
@@ -4402,8 +4403,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return -ENOMEM;
path->leave_spinning = 1;
- start = round_down(start, BTRFS_I(inode)->root->sectorsize);
- len = round_up(max, BTRFS_I(inode)->root->sectorsize) - start;
+ start = round_down(start, btrfs_inode_sectorsize(inode));
+ len = round_up(max, btrfs_inode_sectorsize(inode)) - start;
/*
* lookup the last file extent. We're not using i_size here
@@ -4537,7 +4538,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
root->objectid,
btrfs_ino(inode), bytenr);
if (trans)
- btrfs_end_transaction(trans, root);
+ btrfs_end_transaction(trans);
if (ret < 0)
goto out_free;
if (ret)
@@ -4718,9 +4719,9 @@ struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src)
WARN_ON(PageDirty(p));
SetPageUptodate(p);
new->pages[i] = p;
+ copy_page(page_address(p), page_address(src->pages[i]));
}
- copy_extent_buffer(new, src, 0, 0, src->len);
set_bit(EXTENT_BUFFER_UPTODATE, &new->bflags);
set_bit(EXTENT_BUFFER_DUMMY, &new->bflags);
@@ -4758,21 +4759,9 @@ err:
}
struct extent_buffer *alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info,
- u64 start, u32 nodesize)
+ u64 start)
{
- unsigned long len;
-
- if (!fs_info) {
- /*
- * Called only from tests that don't always have a fs_info
- * available
- */
- len = nodesize;
- } else {
- len = fs_info->tree_root->nodesize;
- }
-
- return __alloc_dummy_extent_buffer(fs_info, start, len);
+ return __alloc_dummy_extent_buffer(fs_info, start, fs_info->nodesize);
}
static void check_buffer_tree_ref(struct extent_buffer *eb)
@@ -4863,7 +4852,7 @@ struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info,
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,
- u64 start, u32 nodesize)
+ u64 start)
{
struct extent_buffer *eb, *exists = NULL;
int ret;
@@ -4871,7 +4860,7 @@ struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,
eb = find_extent_buffer(fs_info, start);
if (eb)
return eb;
- eb = alloc_dummy_extent_buffer(fs_info, start, nodesize);
+ eb = alloc_dummy_extent_buffer(fs_info, start);
if (!eb)
return NULL;
eb->fs_info = fs_info;
@@ -4911,7 +4900,7 @@ free_eb:
struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start)
{
- unsigned long len = fs_info->tree_root->nodesize;
+ unsigned long len = fs_info->nodesize;
unsigned long num_pages = num_extent_pages(start, len);
unsigned long i;
unsigned long index = start >> PAGE_SHIFT;
@@ -4922,7 +4911,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
int uptodate = 1;
int ret;
- if (!IS_ALIGNED(start, fs_info->tree_root->sectorsize)) {
+ if (!IS_ALIGNED(start, fs_info->sectorsize)) {
btrfs_err(fs_info, "bad tree block start %llu", start);
return ERR_PTR(-EINVAL);
}
@@ -5463,6 +5452,27 @@ int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
return ret;
}
+void write_extent_buffer_chunk_tree_uuid(struct extent_buffer *eb,
+ const void *srcv)
+{
+ char *kaddr;
+
+ WARN_ON(!PageUptodate(eb->pages[0]));
+ kaddr = page_address(eb->pages[0]);
+ memcpy(kaddr + offsetof(struct btrfs_header, chunk_tree_uuid), srcv,
+ BTRFS_FSID_SIZE);
+}
+
+void write_extent_buffer_fsid(struct extent_buffer *eb, const void *srcv)
+{
+ char *kaddr;
+
+ WARN_ON(!PageUptodate(eb->pages[0]));
+ kaddr = page_address(eb->pages[0]);
+ memcpy(kaddr + offsetof(struct btrfs_header, fsid), srcv,
+ BTRFS_FSID_SIZE);
+}
+
void write_extent_buffer(struct extent_buffer *eb, const void *srcv,
unsigned long start, unsigned long len)
{
@@ -5494,8 +5504,8 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv,
}
}
-void memset_extent_buffer(struct extent_buffer *eb, char c,
- unsigned long start, unsigned long len)
+void memzero_extent_buffer(struct extent_buffer *eb, unsigned long start,
+ unsigned long len)
{
size_t cur;
size_t offset;
@@ -5515,7 +5525,7 @@ void memset_extent_buffer(struct extent_buffer *eb, char c,
cur = min(len, PAGE_SIZE - offset);
kaddr = page_address(page);
- memset(kaddr + offset, c, cur);
+ memset(kaddr + offset, 0, cur);
len -= cur;
offset = 0;
@@ -5523,6 +5533,20 @@ void memset_extent_buffer(struct extent_buffer *eb, char c,
}
}
+void copy_extent_buffer_full(struct extent_buffer *dst,
+ struct extent_buffer *src)
+{
+ int i;
+ unsigned num_pages;
+
+ ASSERT(dst->len == src->len);
+
+ num_pages = num_extent_pages(dst->start, dst->len);
+ for (i = 0; i < num_pages; i++)
+ copy_page(page_address(dst->pages[i]),
+ page_address(src->pages[i]));
+}
+
void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src,
unsigned long dst_offset, unsigned long src_offset,
unsigned long len)
@@ -5764,6 +5788,7 @@ static void copy_pages(struct page *dst_page, struct page *src_page,
void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_offset, unsigned long len)
{
+ struct btrfs_fs_info *fs_info = dst->fs_info;
size_t cur;
size_t dst_off_in_page;
size_t src_off_in_page;
@@ -5772,13 +5797,13 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_i;
if (src_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus src_offset %lu move len %lu dst len %lu",
src_offset, len, dst->len);
BUG_ON(1);
}
if (dst_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus dst_offset %lu move len %lu dst len %lu",
dst_offset, len, dst->len);
BUG_ON(1);
@@ -5810,6 +5835,7 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_offset, unsigned long len)
{
+ struct btrfs_fs_info *fs_info = dst->fs_info;
size_t cur;
size_t dst_off_in_page;
size_t src_off_in_page;
@@ -5820,13 +5846,13 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
unsigned long src_i;
if (src_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus src_offset %lu move len %lu len %lu",
src_offset, len, dst->len);
BUG_ON(1);
}
if (dst_offset + len > dst->len) {
- btrfs_err(dst->fs_info,
+ btrfs_err(fs_info,
"memmove bogus dst_offset %lu move len %lu len %lu",
dst_offset, len, dst->len);
BUG_ON(1);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-29 05:39:54 +0100