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Unionfs: cache coherency after lower objects are removed
authorErez_Zadok <ezk@cs.sunysb.edu>
Tue, 11 Sep 2007 00:19:29 +0000 (20:19 -0400)
committerErez Zadok <ezk@cs.sunysb.edu>
Sat, 16 Aug 2014 02:28:10 +0000 (22:28 -0400)
commit0c2022ed14e2a2c04a7fad3b513c273f2164fcb1
treef0b9dc30f2bacb747e981001bde078662634bcd3tree | snapshot
parent053c6c97cfd815ef47f63a9c2c65d3ba39cd6600commit | diff
Unionfs: cache coherency after lower objects are removed

Prevent an oops if a lower file is deleted and then it is stat'ed from the
upper layer.  Ensure that we return a negative dentry so the user will get
an ENOENT.  Properly dput/mntput so we don't leak references at the lower
file system.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
fs/unionfs/lookup.c diff | blob | history
unionfs2-3.15.y