#include #include #include "../util/cache.h" #include "../util/debug.h" #include "../util/hist.h" pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER; void *perf_gtk_handle; #ifdef HAVE_GTK2_SUPPORT static int setup_gtk_browser(void) { int (*perf_ui_init)(void); if (perf_gtk_handle) return 0; perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY); if (perf_gtk_handle == NULL) { char buf[PATH_MAX]; scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO); perf_gtk_handle = dlopen(buf, RTLD_LAZY); } if (perf_gtk_handle == NULL) return -1; perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init"); if (perf_ui_init == NULL) goto out_close; if (perf_ui_init() == 0) return 0; out_close: dlclose(perf_gtk_handle); return -1; } static void exit_gtk_browser(bool wait_for_ok) { void (*perf_ui_exit)(bool); if (perf_gtk_handle == NULL) return; perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit"); if (perf_ui_exit == NULL) goto out_close; perf_ui_exit(wait_for_ok); out_close: dlclose(perf_gtk_handle); perf_gtk_handle = NULL; } #else static inline int setup_gtk_browser(void) { return -1; } static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {} #endif int stdio__config_color(const struct option *opt __maybe_unused, const char *mode, int unset __maybe_unused) { perf_use_color_default = perf_config_colorbool("color.ui", mode, -1); return 0; } void setup_browser(bool fallback_to_pager) { if (use_browser < 2 && (!isatty(1) || dump_trace)) use_browser = 0; /* default to TUI */ if (use_browser < 0) use_browser = 1; switch (use_browser) { case 2: if (setup_gtk_browser() == 0) break; printf("GTK browser requested but could not find %s\n", PERF_GTK_DSO); sleep(1); /* fall through */ case 1: use_browser = 1; if (ui__init() == 0) break; /* fall through */ default: use_browser = 0; if (fallback_to_pager) setup_pager(); break; } } void exit_browser(bool wait_for_ok) { switch (use_browser) { case 2: exit_gtk_browser(wait_for_ok); break; case 1: ui__exit(wait_for_ok); break; default: break; } } d'>diff
path: root/sound/isa/es1688/Makefile
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authorDexuan Cui <decui@microsoft.com>2017-01-28 11:46:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-31 10:59:48 +0100
commit433e19cf33d34bb6751c874a9c00980552fe508c (patch)
treece6547ef2987fbb289fa28f03536328a42781651 /sound/firewire/tascam/tascam-pcm.c
parent191e885a2e130e639bb0c8ee350d7047294f2ce6 (diff)
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") added the proper mb(), but removed the test "prev_write_sz < pending_sz" when making the signal decision. As a result, the guest can signal the host unnecessarily, and then the host can throttle the guest because the host thinks the guest is buggy or malicious; finally the user running stress test can perceive intermittent freeze of the guest. This patch brings back the test, and properly handles the in-place consumption APIs used by NetVSC (see get_next_pkt_raw(), put_pkt_raw() and commit_rd_index()). Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in hv_need_to_signal_on_read()") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: <stable@vger.kernel.org> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/firewire/tascam/tascam-pcm.c')