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authorYan Zheng <zheng.yan@oracle.com>2008-10-09 11:46:19 -0400
committerChris Mason <chris.mason@oracle.com>2008-10-09 11:46:19 -0400
commit5b84e8d6eef82fcf7b1b16d92e29375b85b6549a (patch)
treed9ab309bc09f8a615aab2c0728272fa773beacf7 /fs/mpage.c
parent3bb1a1bc42f2ae9582c28adf620484efcd4da38d (diff)
Btrfs: Fix leaf reference cache miss
Due to the optimization for truncate, tree leaves only containing checksum items can be deleted without being COW'ed first. This causes reference cache misses. The way to fix the miss is create cache entries for tree leaves only contain checksum. This patch also fixes a -EEXIST issue in shared reference cache. Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
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