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android_kernel_samsung_univ.../fs/cachefiles
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Kiran Kumar Modukuri 9dbea3f6b8 cachefiles: Wait rather than BUG'ing on "Unexpected object collision" 
[ Upstream commit c2412ac45a8f8f1cd582723c1a139608694d410d ]

If we meet a conflicting object that is marked FSCACHE_OBJECT_IS_LIVE in
the active object tree, we have been emitting a BUG after logging
information about it and the new object.

Instead, we should wait for the CACHEFILES_OBJECT_ACTIVE flag to be cleared
on the old object (or return an error).  The ACTIVE flag should be cleared
after it has been removed from the active object tree.  A timeout of 60s is
used in the wait, so we shouldn't be able to get stuck there.

Fixes: 9ae326a690 ("CacheFiles: A cache that backs onto a mounted filesystem")
Signed-off-by: Kiran Kumar Modukuri <kiran.modukuri@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05 09:18:35 +02:00
..
bind.c VFS: fs/cachefiles: d_backing_inode() annotations 2015-04-15 15:06:59 -04:00
daemon.c Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions 2015-02-22 11:38:41 -05:00
interface.c VFS: fs/cachefiles: d_backing_inode() annotations 2015-04-15 15:06:59 -04:00
internal.h mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
Kconfig
key.c
main.c fs/cachefiles: add missing \n to kerror conversions 2014-09-26 08:10:35 -07:00
Makefile
namei.c cachefiles: Wait rather than BUG'ing on "Unexpected object collision" 2018-09-05 09:18:35 +02:00
proc.c
rdwr.c cachefiles: Fix refcounting bug in backing-file read monitoring 2018-09-05 09:18:35 +02:00
security.c VFS: fs/cachefiles: d_backing_inode() annotations 2015-04-15 15:06:59 -04:00
xattr.c VFS: fs/cachefiles: d_backing_inode() annotations 2015-04-15 15:06:59 -04:00