16c00db4bb
Pull AFS fixes from David Howells:
"Here's a set of patches that fix a number of bugs in the in-kernel AFS
client, including:
- Fix directory locking to not use individual page locks for
directory reading/scanning but rather to use a semaphore on the
afs_vnode struct as the directory contents must be read in a single
blob and data from different reads must not be mixed as the entire
contents may be shuffled about between reads.
- Fix address list parsing to handle port specifiers correctly.
- Only give up callback records on a server if we actually talked to
that server (we might not be able to access a server).
- Fix some callback handling bugs, including refcounting,
whole-volume callbacks and when callbacks actually get broken in
response to a CB.CallBack op.
- Fix some server/address rotation bugs, including giving up if we
can't probe a server; giving up if a server says it doesn't have a
volume, but there are more servers to try.
- Fix the decoding of fetched statuses to be OpenAFS compatible.
- Fix the handling of server lookups in Cache Manager ops (such as
CB.InitCallBackState3) to use a UUID if possible and to handle no
server being found.
- Fix a bug in server lookup where not all addresses are compared.
- Fix the non-encryption of calls that prevents some servers from
being accessed (this also requires an AF_RXRPC patch that has
already gone in through the net tree).
There's also a patch that adds tracepoints to log Cache Manager ops
that don't find a matching server, either by UUID or by address"
* tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix the non-encryption of calls
afs: Fix CB.CallBack handling
afs: Fix whole-volume callback handling
afs: Fix afs_find_server search loop
afs: Fix the handling of an unfound server in CM operations
afs: Add a tracepoint to record callbacks from unlisted servers
afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID
afs: Fix VNOVOL handling in address rotation
afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility
afs: Fix server rotation's handling of fileserver probe failure
afs: Fix refcounting in callback registration
afs: Fix giving up callbacks on server destruction
afs: Fix address list parsing
afs: Fix directory page locking
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_BLOCK_RANGE_H
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#define __PERF_BLOCK_RANGE_H
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#include "symbol.h"
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/*
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* struct block_range - non-overlapping parts of basic blocks
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* @node: treenode
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* @start: inclusive start of range
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* @end: inclusive end of range
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* @is_target: @start is a jump target
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* @is_branch: @end is a branch instruction
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* @coverage: number of blocks that cover this range
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* @taken: number of times the branch is taken (requires @is_branch)
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* @pred: number of times the taken branch was predicted
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*/
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struct block_range {
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struct rb_node node;
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struct symbol *sym;
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u64 start;
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u64 end;
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int is_target, is_branch;
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u64 coverage;
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u64 entry;
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u64 taken;
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u64 pred;
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};
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static inline struct block_range *block_range__next(struct block_range *br)
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{
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struct rb_node *n = rb_next(&br->node);
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if (!n)
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return NULL;
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return rb_entry(n, struct block_range, node);
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}
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struct block_range_iter {
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struct block_range *start;
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struct block_range *end;
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};
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static inline struct block_range *block_range_iter(struct block_range_iter *iter)
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{
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return iter->start;
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}
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static inline bool block_range_iter__next(struct block_range_iter *iter)
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{
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if (iter->start == iter->end)
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return false;
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iter->start = block_range__next(iter->start);
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return true;
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}
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static inline bool block_range_iter__valid(struct block_range_iter *iter)
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{
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if (!iter->start || !iter->end)
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return false;
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return true;
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}
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extern struct block_range *block_range__find(u64 addr);
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extern struct block_range_iter block_range__create(u64 start, u64 end);
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extern double block_range__coverage(struct block_range *br);
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#endif /* __PERF_BLOCK_RANGE_H */
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