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authorJosef Bacik <josef@redhat.com>2010-12-08 17:15:11 +0300
committerJosef Bacik <josef@redhat.com>2010-12-09 21:57:13 +0300
commitb8399dee478db7939cd0d6fda8ecacddf2facd03 (patch)
tree418a67d8d2de13739f3b14518917c8aaadafe3b8 /fs/proc/stat.c
parent2b20982e3154266106573beac2a4d4ba57a2789a (diff)
downloadlinux-b8399dee478db7939cd0d6fda8ecacddf2facd03.tar.xz
Btrfs: do not do fast caching if we are allocating blocks for tree_root
Since the fast caching uses normal tree locking, we can possibly deadlock if we get to the caching via a btrfs_search_slot() on the tree_root. So just check to see if the root we are on is the tree root, and just don't do the fast caching. Reported-by: Sage Weil <sage@newdream.net> Signed-off-by: Josef Bacik <josef@redhat.com>
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