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Btrfs: fix btrfs_release_extent_buffer_page with the right usage of num_extent_pages
authorWang Sheng-Hui <shhuiw@gmail.com>
Fri, 6 Apr 2012 06:35:31 +0000 (14:35 +0800)
committerJosef Bacik <josef@redhat.com>
Fri, 11 May 2012 14:56:38 +0000 (10:56 -0400)
commit39bab87ba6f4d8cce2b70c19e60233ad8030d7b4
tree000084281b76183533122fd2db482d3dc2376237tree | snapshot
parent1b303fc0545b4bfbb2b8a69eec89e6f077f69b56commit | diff
Btrfs: fix btrfs_release_extent_buffer_page with the right usage of num_extent_pages

num_extent_pages returns the number of pages in the specific range, not
the index of the last page in the eb range.

btrfs_release_extent_buffer_page is called with start_idx set 0 in current
codes, so it's not a problem yet. But the logic is indeed wrong.

Fix it here.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
fs/btrfs/extent_io.c diff | blob | history
Beck SC1x5 Kernel