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perf: Use POLLIN instead of POLL_IN for perf poll data in flag
Currently we flag available data (via poll syscall) on perf fd with POLL_IN macro, which is normally used for SIGIO interface. We've been lucky, because POLLIN (0x1) is subset of POLL_IN (0x20001) and sys_poll (do_pollfd function) cut the extra bit out (0x20000). Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1422467678-22341-1-git-send-email-jolsa@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -13,12 +13,13 @@
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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#include <linux/circ_buf.h>
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#include <linux/poll.h>
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#include "internal.h"
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static void perf_output_wakeup(struct perf_output_handle *handle)
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{
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atomic_set(&handle->rb->poll, POLL_IN);
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atomic_set(&handle->rb->poll, POLLIN);
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handle->event->pending_wakeup = 1;
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irq_work_queue(&handle->event->pending);
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