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Btrfs: Fix new state initialization order
As the extent state tree is manipulated, there are call backs that are used to take extra actions when different state bits are set or cleared. One example of this is a counter for the total number of delayed allocation bytes in a single inode and in the whole FS. When new states are inserted, this callback is being done before we properly setup the new state. This hasn't caused problems before because the lock bit was always done first, and the existing call backs don't care about the lock bit. This patch makes sure the state is properly setup before using the callback, which is important for later optimizations that do more work without using the lock bit. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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1 changed files with 2 additions and 2 deletions
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@ -367,10 +367,10 @@ static int insert_state(struct extent_io_tree *tree,
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}
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if (bits & EXTENT_DIRTY)
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tree->dirty_bytes += end - start + 1;
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set_state_cb(tree, state, bits);
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state->state |= bits;
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state->start = start;
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state->end = end;
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set_state_cb(tree, state, bits);
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state->state |= bits;
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node = tree_insert(&tree->state, end, &state->rb_node);
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if (node) {
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struct extent_state *found;
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