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Btrfs: only clear dirty on the buffer if it is marked as dirty

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No reason to set the path blocking or loop through all of the pages if the
extent buffer isn't actually marked dirty.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Josef Bacik 2012-10-15 13:33:54 -04:00 committed by Chris Mason
parent bb146eb265
commit ed7b63eb8a
1 changed files with 4 additions and 4 deletions
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2
fs/btrfs/disk-io.c
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@ -1142,12 +1142,12 @@ void clean_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
root->fs_info->dirty_metadata_bytes);
}
spin_unlock(&root->fs_info->delalloc_lock);
}
/* ugh, clear_extent_buffer_dirty needs to lock the page */
btrfs_set_lock_blocking(buf);
clear_extent_buffer_dirty(buf);
}
}
}
static void __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,