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authorAlan Cox <alc@FreeBSD.org>2018-12-05 18:26:40 +0000
committerAlan Cox <alc@FreeBSD.org>2018-12-05 18:26:40 +0000
commit749cdf6f3ba78a5c02b249265a08c29cf999e0cf (patch)
treea13a5ac57ba417c844cdb05c0fff4bf7e56ff230 /sbin/fsirand
parent5e97950ded5ee0ed144a69e0c08d70fc5355adf2 (diff)
downloadsrc-749cdf6f3ba78a5c02b249265a08c29cf999e0cf.tar.gz
src-749cdf6f3ba78a5c02b249265a08c29cf999e0cf.zip
Terminate a blist_alloc search when a blst_meta_alloc call fails with
cursor == 0. Every call to blst_meta_alloc but the one at the root is made only when the meta-node is known to include a free block, so that either the allocation will succeed, the node hint will be updated, or the last block of the meta- node range is, and remains, free. But the call at the root is made without checking that there is a free block, so in the case that every block is allocated, there is no hint update to prevent the current code from looping forever. Submitted by: Doug Moore <dougm@rice.edu> Reported by: pho Reviewed by: pho Tested by: pho X-MFC with: r340402 Differential Revision: https://reviews.freebsd.org/D17999
Notes
Notes: svn path=/head/; revision=341602
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