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Btrfs: Rewrite btrfs_drop_extents

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Rewrite btrfs_drop_extents by using btrfs_duplicate_item, so we can
avoid calling lock_extent within transaction.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan, Zheng 2009-11-12 09:34:08 +00:00 • committed by Chris Mason
parent ad48fd7546
commit 920bbbfb05
5 changed files with 288 additions and 434 deletions
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4
fs/btrfs/tree-log.c
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@ -542,8 +542,8 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
saved_nbytes = inode_get_bytes(inode);
/* drop any overlapping extents */
ret = btrfs_drop_extents(trans, root, inode,
start, extent_end, extent_end, start, &alloc_hint, 1);
ret = btrfs_drop_extents(trans, inode, start, extent_end,
&alloc_hint, 1);
BUG_ON(ret);
if (found_type == BTRFS_FILE_EXTENT_REG ||