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
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
#include <linux/compiler.h>
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#include <linux/bitmap.h>
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#include "cpumap.h"
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#include "mem2node.h"
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#include "tests.h"
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static struct node {
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int node;
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const char *map;
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} test_nodes[] = {
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{ .node = 0, .map = "0" },
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{ .node = 1, .map = "1-2" },
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{ .node = 3, .map = "5-7,9" },
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};
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#define T TEST_ASSERT_VAL
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static unsigned long *get_bitmap(const char *str, int nbits)
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{
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struct cpu_map *map = cpu_map__new(str);
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unsigned long *bm = NULL;
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int i;
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bm = bitmap_alloc(nbits);
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if (map && bm) {
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bitmap_zero(bm, nbits);
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for (i = 0; i < map->nr; i++) {
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set_bit(map->map[i], bm);
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}
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}
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if (map)
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cpu_map__put(map);
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else
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free(bm);
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return bm && map ? bm : NULL;
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}
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int test__mem2node(struct test *t __maybe_unused, int subtest __maybe_unused)
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{
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struct mem2node map;
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struct memory_node nodes[3];
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struct perf_env env = {
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.memory_nodes = (struct memory_node *) &nodes[0],
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.nr_memory_nodes = ARRAY_SIZE(nodes),
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.memory_bsize = 0x100,
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};
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(nodes); i++) {
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nodes[i].node = test_nodes[i].node;
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nodes[i].size = 10;
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T("failed: alloc bitmap",
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(nodes[i].set = get_bitmap(test_nodes[i].map, 10)));
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}
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T("failed: mem2node__init", !mem2node__init(&map, &env));
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T("failed: mem2node__node", 0 == mem2node__node(&map, 0x50));
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T("failed: mem2node__node", 1 == mem2node__node(&map, 0x100));
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T("failed: mem2node__node", 1 == mem2node__node(&map, 0x250));
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T("failed: mem2node__node", 3 == mem2node__node(&map, 0x500));
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T("failed: mem2node__node", 3 == mem2node__node(&map, 0x650));
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T("failed: mem2node__node", -1 == mem2node__node(&map, 0x450));
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T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050));
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for (i = 0; i < ARRAY_SIZE(nodes); i++)
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free(nodes[i].set);
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mem2node__exit(&map);
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return 0;
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}
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