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-rw-r--r--fs/btrfs/backref.c12
-rw-r--r--fs/btrfs/extent_map.c2
-rw-r--r--fs/btrfs/file.c4
-rw-r--r--fs/btrfs/inode.c16
-rw-r--r--fs/btrfs/ioctl.c33
-rw-r--r--fs/btrfs/messages.c2
-rw-r--r--fs/btrfs/ordered-data.c1
-rw-r--r--fs/btrfs/qgroup.c23
-rw-r--r--fs/btrfs/raid56.c3
-rw-r--r--fs/btrfs/scrub.c18
-rw-r--r--fs/btrfs/tests/extent-map-tests.c5
-rw-r--r--fs/btrfs/tree-checker.c30
-rw-r--r--fs/btrfs/tree-checker.h1
-rw-r--r--fs/btrfs/volumes.c1
14 files changed, 89 insertions, 62 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index c1e6a5bbeeaf..58110c968667 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2776,20 +2776,14 @@ struct btrfs_data_container *init_data_container(u32 total_bytes)
size_t alloc_bytes;
alloc_bytes = max_t(size_t, total_bytes, sizeof(*data));
- data = kvmalloc(alloc_bytes, GFP_KERNEL);
+ data = kvzalloc(alloc_bytes, GFP_KERNEL);
if (!data)
return ERR_PTR(-ENOMEM);
- if (total_bytes >= sizeof(*data)) {
+ if (total_bytes >= sizeof(*data))
data->bytes_left = total_bytes - sizeof(*data);
- data->bytes_missing = 0;
- } else {
+ else
data->bytes_missing = sizeof(*data) - total_bytes;
- data->bytes_left = 0;
- }
-
- data->elem_cnt = 0;
- data->elem_missed = 0;
return data;
}
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 445f7716f1e2..24a048210b15 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -817,7 +817,7 @@ void btrfs_drop_extent_map_range(struct btrfs_inode *inode, u64 start, u64 end,
split->block_len = em->block_len;
split->orig_start = em->orig_start;
} else {
- const u64 diff = start + len - em->start;
+ const u64 diff = end - em->start;
split->block_len = split->len;
split->block_start += diff;
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index f9d76072398d..1640c46f2153 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -3719,8 +3719,7 @@ static int btrfs_file_open(struct inode *inode, struct file *filp)
{
int ret;
- filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC | FMODE_BUF_WASYNC |
- FMODE_CAN_ODIRECT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_CAN_ODIRECT;
ret = fsverity_file_open(inode, filp);
if (ret)
@@ -3850,6 +3849,7 @@ const struct file_operations btrfs_file_operations = {
.compat_ioctl = btrfs_compat_ioctl,
#endif
.remap_file_range = btrfs_remap_file_range,
+ .fop_flags = FOP_BUFFER_RASYNC | FOP_BUFFER_WASYNC,
};
int btrfs_fdatawrite_range(struct inode *inode, loff_t start, loff_t end)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c65fe5de4022..f454ba349683 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1145,13 +1145,13 @@ static void submit_one_async_extent(struct async_chunk *async_chunk,
0, *alloc_hint, &ins, 1, 1);
if (ret) {
/*
- * Here we used to try again by going back to non-compressed
- * path for ENOSPC. But we can't reserve space even for
- * compressed size, how could it work for uncompressed size
- * which requires larger size? So here we directly go error
- * path.
+ * We can't reserve contiguous space for the compressed size.
+ * Unlikely, but it's possible that we could have enough
+ * non-contiguous space for the uncompressed size instead. So
+ * fall back to uncompressed.
*/
- goto out_free;
+ submit_uncompressed_range(inode, async_extent, locked_page);
+ goto done;
}
/* Here we're doing allocation and writeback of the compressed pages */
@@ -1203,7 +1203,6 @@ done:
out_free_reserve:
btrfs_dec_block_group_reservations(fs_info, ins.objectid);
btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 1);
-out_free:
mapping_set_error(inode->vfs_inode.i_mapping, -EIO);
extent_clear_unlock_delalloc(inode, start, end,
NULL, EXTENT_LOCKED | EXTENT_DELALLOC |
@@ -8790,6 +8789,9 @@ static int btrfs_getattr(struct mnt_idmap *idmap,
generic_fillattr(idmap, request_mask, inode, stat);
stat->dev = BTRFS_I(inode)->root->anon_dev;
+ stat->subvol = BTRFS_I(inode)->root->root_key.objectid;
+ stat->result_mask |= STATX_SUBVOL;
+
spin_lock(&BTRFS_I(inode)->lock);
delalloc_bytes = BTRFS_I(inode)->new_delalloc_bytes;
inode_bytes = inode_get_bytes(inode);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 55f3ba6a831c..0493272a7668 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3758,15 +3758,43 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
goto drop_write;
}
- down_write(&fs_info->subvol_sem);
-
switch (sa->cmd) {
case BTRFS_QUOTA_CTL_ENABLE:
case BTRFS_QUOTA_CTL_ENABLE_SIMPLE_QUOTA:
+ down_write(&fs_info->subvol_sem);
ret = btrfs_quota_enable(fs_info, sa);
+ up_write(&fs_info->subvol_sem);
break;
case BTRFS_QUOTA_CTL_DISABLE:
+ /*
+ * Lock the cleaner mutex to prevent races with concurrent
+ * relocation, because relocation may be building backrefs for
+ * blocks of the quota root while we are deleting the root. This
+ * is like dropping fs roots of deleted snapshots/subvolumes, we
+ * need the same protection.
+ *
+ * This also prevents races between concurrent tasks trying to
+ * disable quotas, because we will unlock and relock
+ * qgroup_ioctl_lock across BTRFS_FS_QUOTA_ENABLED changes.
+ *
+ * We take this here because we have the dependency of
+ *
+ * inode_lock -> subvol_sem
+ *
+ * because of rename. With relocation we can prealloc extents,
+ * so that makes the dependency chain
+ *
+ * cleaner_mutex -> inode_lock -> subvol_sem
+ *
+ * so we must take the cleaner_mutex here before we take the
+ * subvol_sem. The deadlock can't actually happen, but this
+ * quiets lockdep.
+ */
+ mutex_lock(&fs_info->cleaner_mutex);
+ down_write(&fs_info->subvol_sem);
ret = btrfs_quota_disable(fs_info);
+ up_write(&fs_info->subvol_sem);
+ mutex_unlock(&fs_info->cleaner_mutex);
break;
default:
ret = -EINVAL;
@@ -3774,7 +3802,6 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
}
kfree(sa);
- up_write(&fs_info->subvol_sem);
drop_write:
mnt_drop_write_file(file);
return ret;
diff --git a/fs/btrfs/messages.c b/fs/btrfs/messages.c
index c96dd66fd0f7..210d9c82e2ae 100644
--- a/fs/btrfs/messages.c
+++ b/fs/btrfs/messages.c
@@ -7,7 +7,7 @@
#ifdef CONFIG_PRINTK
-#define STATE_STRING_PREFACE ": state "
+#define STATE_STRING_PREFACE " state "
#define STATE_STRING_BUF_LEN (sizeof(STATE_STRING_PREFACE) + BTRFS_FS_STATE_COUNT + 1)
/*
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index b749ba45da2b..c2a42bcde98e 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -1188,6 +1188,7 @@ struct btrfs_ordered_extent *btrfs_split_ordered_extent(
ordered->disk_bytenr += len;
ordered->num_bytes -= len;
ordered->disk_num_bytes -= len;
+ ordered->ram_bytes -= len;
if (test_bit(BTRFS_ORDERED_IO_DONE, &ordered->flags)) {
ASSERT(ordered->bytes_left == 0);
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index cf8820ce7aa2..40e5f7f2fcb7 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1342,16 +1342,10 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
lockdep_assert_held_write(&fs_info->subvol_sem);
/*
- * Lock the cleaner mutex to prevent races with concurrent relocation,
- * because relocation may be building backrefs for blocks of the quota
- * root while we are deleting the root. This is like dropping fs roots
- * of deleted snapshots/subvolumes, we need the same protection.
- *
- * This also prevents races between concurrent tasks trying to disable
- * quotas, because we will unlock and relock qgroup_ioctl_lock across
- * BTRFS_FS_QUOTA_ENABLED changes.
+ * Relocation will mess with backrefs, so make sure we have the
+ * cleaner_mutex held to protect us from relocate.
*/
- mutex_lock(&fs_info->cleaner_mutex);
+ lockdep_assert_held(&fs_info->cleaner_mutex);
mutex_lock(&fs_info->qgroup_ioctl_lock);
if (!fs_info->quota_root)
@@ -1373,9 +1367,13 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
btrfs_qgroup_wait_for_completion(fs_info, false);
+ /*
+ * We have nothing held here and no trans handle, just return the error
+ * if there is one.
+ */
ret = flush_reservations(fs_info);
if (ret)
- goto out_unlock_cleaner;
+ return ret;
/*
* 1 For the root item
@@ -1439,9 +1437,6 @@ out:
btrfs_end_transaction(trans);
else if (trans)
ret = btrfs_commit_transaction(trans);
-out_unlock_cleaner:
- mutex_unlock(&fs_info->cleaner_mutex);
-
return ret;
}
@@ -3050,6 +3045,8 @@ int btrfs_qgroup_check_inherit(struct btrfs_fs_info *fs_info,
struct btrfs_qgroup_inherit *inherit,
size_t size)
{
+ if (!btrfs_qgroup_enabled(fs_info))
+ return 0;
if (inherit->flags & ~BTRFS_QGROUP_INHERIT_FLAGS_SUPP)
return -EOPNOTSUPP;
if (size < sizeof(*inherit) || size > PAGE_SIZE)
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 6f4a9cfeea44..831fac45e70f 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -331,12 +331,11 @@ static void steal_rbio(struct btrfs_raid_bio *src, struct btrfs_raid_bio *dest)
static void merge_rbio(struct btrfs_raid_bio *dest,
struct btrfs_raid_bio *victim)
{
- bio_list_merge(&dest->bio_list, &victim->bio_list);
+ bio_list_merge_init(&dest->bio_list, &victim->bio_list);
dest->bio_list_bytes += victim->bio_list_bytes;
/* Also inherit the bitmaps from @victim. */
bitmap_or(&dest->dbitmap, &victim->dbitmap, &dest->dbitmap,
dest->stripe_nsectors);
- bio_list_init(&victim->bio_list);
}
/*
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index fa25004ab04e..4b22cfe9a98c 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1012,6 +1012,7 @@ static void scrub_stripe_read_repair_worker(struct work_struct *work)
struct btrfs_fs_info *fs_info = sctx->fs_info;
int num_copies = btrfs_num_copies(fs_info, stripe->bg->start,
stripe->bg->length);
+ unsigned long repaired;
int mirror;
int i;
@@ -1078,16 +1079,15 @@ out:
* Submit the repaired sectors. For zoned case, we cannot do repair
* in-place, but queue the bg to be relocated.
*/
- if (btrfs_is_zoned(fs_info)) {
- if (!bitmap_empty(&stripe->error_bitmap, stripe->nr_sectors))
+ bitmap_andnot(&repaired, &stripe->init_error_bitmap, &stripe->error_bitmap,
+ stripe->nr_sectors);
+ if (!sctx->readonly && !bitmap_empty(&repaired, stripe->nr_sectors)) {
+ if (btrfs_is_zoned(fs_info)) {
btrfs_repair_one_zone(fs_info, sctx->stripes[0].bg->start);
- } else if (!sctx->readonly) {
- unsigned long repaired;
-
- bitmap_andnot(&repaired, &stripe->init_error_bitmap,
- &stripe->error_bitmap, stripe->nr_sectors);
- scrub_write_sectors(sctx, stripe, repaired, false);
- wait_scrub_stripe_io(stripe);
+ } else {
+ scrub_write_sectors(sctx, stripe, repaired, false);
+ wait_scrub_stripe_io(stripe);
+ }
}
scrub_stripe_report_errors(sctx, stripe);
diff --git a/fs/btrfs/tests/extent-map-tests.c b/fs/btrfs/tests/extent-map-tests.c
index 253cce7ffecf..47b5d301038e 100644
--- a/fs/btrfs/tests/extent-map-tests.c
+++ b/fs/btrfs/tests/extent-map-tests.c
@@ -847,6 +847,11 @@ static int test_case_7(struct btrfs_fs_info *fs_info)
goto out;
}
+ if (em->block_start != SZ_32K + SZ_4K) {
+ test_err("em->block_start is %llu, expected 36K", em->block_start);
+ goto out;
+ }
+
free_extent_map(em);
read_lock(&em_tree->lock);
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index c8fbcae4e88e..32604e9b31c3 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -1797,6 +1797,11 @@ enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf)
return BTRFS_TREE_BLOCK_INVALID_LEVEL;
}
+ if (unlikely(!btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_WRITTEN))) {
+ generic_err(leaf, 0, "invalid flag for leaf, WRITTEN not set");
+ return BTRFS_TREE_BLOCK_WRITTEN_NOT_SET;
+ }
+
/*
* Extent buffers from a relocation tree have a owner field that
* corresponds to the subvolume tree they are based on. So just from an
@@ -1858,6 +1863,7 @@ enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf)
for (slot = 0; slot < nritems; slot++) {
u32 item_end_expected;
u64 item_data_end;
+ enum btrfs_tree_block_status ret;
btrfs_item_key_to_cpu(leaf, &key, slot);
@@ -1913,21 +1919,10 @@ enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf)
return BTRFS_TREE_BLOCK_INVALID_OFFSETS;
}
- /*
- * We only want to do this if WRITTEN is set, otherwise the leaf
- * may be in some intermediate state and won't appear valid.
- */
- if (btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_WRITTEN)) {
- enum btrfs_tree_block_status ret;
-
- /*
- * Check if the item size and content meet other
- * criteria
- */
- ret = check_leaf_item(leaf, &key, slot, &prev_key);
- if (unlikely(ret != BTRFS_TREE_BLOCK_CLEAN))
- return ret;
- }
+ /* Check if the item size and content meet other criteria. */
+ ret = check_leaf_item(leaf, &key, slot, &prev_key);
+ if (unlikely(ret != BTRFS_TREE_BLOCK_CLEAN))
+ return ret;
prev_key.objectid = key.objectid;
prev_key.type = key.type;
@@ -1957,6 +1952,11 @@ enum btrfs_tree_block_status __btrfs_check_node(struct extent_buffer *node)
int level = btrfs_header_level(node);
u64 bytenr;
+ if (unlikely(!btrfs_header_flag(node, BTRFS_HEADER_FLAG_WRITTEN))) {
+ generic_err(node, 0, "invalid flag for node, WRITTEN not set");
+ return BTRFS_TREE_BLOCK_WRITTEN_NOT_SET;
+ }
+
if (unlikely(level <= 0 || level >= BTRFS_MAX_LEVEL)) {
generic_err(node, 0,
"invalid level for node, have %d expect [1, %d]",
diff --git a/fs/btrfs/tree-checker.h b/fs/btrfs/tree-checker.h
index 5c809b50b2d0..01669cfa6578 100644
--- a/fs/btrfs/tree-checker.h
+++ b/fs/btrfs/tree-checker.h
@@ -53,6 +53,7 @@ enum btrfs_tree_block_status {
BTRFS_TREE_BLOCK_INVALID_BLOCKPTR,
BTRFS_TREE_BLOCK_INVALID_ITEM,
BTRFS_TREE_BLOCK_INVALID_OWNER,
+ BTRFS_TREE_BLOCK_WRITTEN_NOT_SET,
};
/*
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f15591f3e54f..ef6bd2f4251b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3455,6 +3455,7 @@ again:
* alignment and size).
*/
ret = -EUCLEAN;
+ mutex_unlock(&fs_info->reclaim_bgs_lock);
goto error;
}
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