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authorNicolas Lacasse <nlacasse@google.com>2018-08-29 11:45:23 -0700
committerShentubot <shentubot@google.com>2018-08-29 11:47:01 -0700
commit956fe64ad6d628c70fe8d0ae7fd4001e8b648a3b (patch)
tree2df4d4e2b0d70686f38fe0a915b2cc146ff8be3f /pkg/sentry/context
parent18932476167ecf16b7d3e85ae6addaaba193ceed (diff)
fs: Fix renameMu lock recursion.
dirent.walk() takes renameMu, but is often called with renameMu already held, which can lead to a deadlock. Fix this by requiring renameMu to be held for reading when dirent.walk() is called. This causes walks and existence checks to block while a rename operation takes place, but that is what we were already trying to enforce by taking renameMu in walk() anyways. PiperOrigin-RevId: 210760780 Change-Id: Id61018e6e4adbeac53b9c1b3aa24ab77f75d8a54
Diffstat (limited to 'pkg/sentry/context')
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