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Merge tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull misc AFS fixes from David Howells:
"This fixes a set of miscellaneous issues in the afs filesystem,
including:
- leak of keys on file close.
- broken error handling in xattr functions.
- missing locking when updating VL server list.
- volume location server DNS lookup whereby preloaded cells may not
ever get a lookup and regular DNS lookups to maintain server lists
consume power unnecessarily.
- incorrect error propagation and handling in the fileserver
iteration code causes operations to sometimes apparently succeed.
- interruption of server record check/update side op during
fileserver iteration causes uninterruptible main operations to fail
unexpectedly.
- callback promise expiry time miscalculation.
- over invalidation of the callback promise on directories.
- double locking on callback break waking up file locking waiters.
- double increment of the vnode callback break counter.
Note that it makes some changes outside of the afs code, including:
- an extra parameter to dns_query() to allow the dns_resolver key
just accessed to be immediately invalidated. AFS is caching the
results itself, so the key can be discarded.
- an interruptible version of wait_var_event().
- an rxrpc function to allow the maximum lifespan to be set on a
call.
- a way for an rxrpc call to be marked as non-interruptible"
* tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix double inc of vnode->cb_break
afs: Fix lock-wait/callback-break double locking
afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set
afs: Fix calculation of callback expiry time
afs: Make dynamic root population wait uninterruptibly for proc_cells_lock
afs: Make some RPC operations non-interruptible
rxrpc: Allow the kernel to mark a call as being non-interruptible
afs: Fix error propagation from server record check/update
afs: Fix the maximum lifespan of VL and probe calls
rxrpc: Provide kernel interface to set max lifespan on a call
afs: Fix "kAFS: AFS vnode with undefined type 0"
afs: Fix cell DNS lookup
Add wait_var_event_interruptible()
dns_resolver: Allow used keys to be invalidated
afs: Fix afs_cell records to always have a VL server list record
afs: Fix missing lock when replacing VL server list
afs: Fix afs_xattr_get_yfs() to not try freeing an error value
afs: Fix incorrect error handling in afs_xattr_get_acl()
afs: Fix key leak in afs_release() and afs_evict_inode()
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