autofs races

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* make autofs4_expire_indirect() skip the dentries being in process of
expiry
* do *not* mess with list_move(); making sure that dentry with
AUTOFS_INF_EXPIRING are not picked for expiry is enough.
* do not remove NO_RCU when we set EXPIRING, don't bother with smp_mb()
there.  Clear it at the same time we clear EXPIRING.  Makes a bunch of
tests simpler.
* rename NO_RCU to WANT_EXPIRE, which is what it really is.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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This commit is contained in:

Al Viro 2016-06-12 11:24:46 -04:00

parent ba65dc5ef1

commit ea01a18494

3 changed files with 15 additions and 22 deletions

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8

fs/autofs4/autofs_i.h

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27

fs/autofs4/expire.c

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2

fs/autofs4/root.c

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