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
120 lines
2.2 KiB
C
120 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <pthread.h>
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#include <dlfcn.h>
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#include "../util/cache.h"
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#include "../util/debug.h"
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#include "../util/hist.h"
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#include "../util/util.h"
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pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
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void *perf_gtk_handle;
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int use_browser = -1;
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#define PERF_GTK_DSO "libperf-gtk.so"
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#ifdef HAVE_GTK2_SUPPORT
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static int setup_gtk_browser(void)
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{
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int (*perf_ui_init)(void);
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if (perf_gtk_handle)
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return 0;
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perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
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if (perf_gtk_handle == NULL) {
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char buf[PATH_MAX];
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scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
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perf_gtk_handle = dlopen(buf, RTLD_LAZY);
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}
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if (perf_gtk_handle == NULL)
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return -1;
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perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
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if (perf_ui_init == NULL)
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goto out_close;
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if (perf_ui_init() == 0)
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return 0;
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out_close:
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dlclose(perf_gtk_handle);
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return -1;
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}
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static void exit_gtk_browser(bool wait_for_ok)
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{
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void (*perf_ui_exit)(bool);
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if (perf_gtk_handle == NULL)
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return;
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perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
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if (perf_ui_exit == NULL)
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goto out_close;
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perf_ui_exit(wait_for_ok);
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out_close:
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dlclose(perf_gtk_handle);
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perf_gtk_handle = NULL;
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}
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#else
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static inline int setup_gtk_browser(void) { return -1; }
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static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
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#endif
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int stdio__config_color(const struct option *opt __maybe_unused,
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const char *mode, int unset __maybe_unused)
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{
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perf_use_color_default = perf_config_colorbool("color.ui", mode, -1);
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return 0;
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}
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void setup_browser(bool fallback_to_pager)
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{
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if (use_browser < 2 && (!isatty(1) || dump_trace))
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use_browser = 0;
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/* default to TUI */
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if (use_browser < 0)
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use_browser = 1;
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switch (use_browser) {
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case 2:
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if (setup_gtk_browser() == 0)
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break;
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printf("GTK browser requested but could not find %s\n",
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PERF_GTK_DSO);
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sleep(1);
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/* fall through */
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case 1:
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use_browser = 1;
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if (ui__init() == 0)
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break;
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/* fall through */
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default:
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use_browser = 0;
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if (fallback_to_pager)
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setup_pager();
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break;
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}
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}
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void exit_browser(bool wait_for_ok)
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{
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switch (use_browser) {
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case 2:
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exit_gtk_browser(wait_for_ok);
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break;
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case 1:
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ui__exit(wait_for_ok);
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break;
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default:
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break;
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}
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}
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