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maple_tree: Protect mas_prev_nentry() from dead nodes
authorLiam Howlett <Liam.Howlett@oracle.com>
Thu, 24 Nov 2022 15:50:21 +0000 (10:50 -0500)
committerLiam Howlett <Liam.Howlett@oracle.com>
Thu, 24 Nov 2022 21:07:24 +0000 (16:07 -0500)
commitef26a882853669eabbf471ce6ab82522efe526f3
tree48a28f9a23e991bd56ecc8d97712cedf83a5c57dtree
parentfa53e143c7b0c2128de4f0c70bd02867e5b0b54bcommit | diff
maple_tree: Protect mas_prev_nentry() from dead nodes

Don't use the pivot array before checking if the node is dead.  This is
for safe use in rcu mode.

Signed-off-by: Liam Howlett <Liam.Howlett@oracle.com>
lib/maple_tree.c diff | blob | history
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