#ifndef __ORDERED_EVENTS_H #define __ORDERED_EVENTS_H #include struct perf_sample; struct ordered_event { u64 timestamp; u64 file_offset; union perf_event *event; struct list_head list; }; enum oe_flush { OE_FLUSH__NONE, OE_FLUSH__FINAL, OE_FLUSH__ROUND, OE_FLUSH__HALF, }; struct ordered_events; typedef int (*ordered_events__deliver_t)(struct ordered_events *oe, struct ordered_event *event); struct ordered_events { u64 last_flush; u64 next_flush; u64 max_timestamp; u64 max_alloc_size; u64 cur_alloc_size; struct list_head events; struct list_head cache; struct list_head to_free; struct ordered_event *buffer; struct ordered_event *last; ordered_events__deliver_t deliver; int buffer_idx; unsigned int nr_events; enum oe_flush last_flush_type; u32 nr_unordered_events; bool copy_on_queue; }; int ordered_events__queue(struct ordered_events *oe, union perf_event *event, struct perf_sample *sample, u64 file_offset); void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event); int ordered_events__flush(struct ordered_events *oe, enum oe_flush how); void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver); void ordered_events__free(struct ordered_events *oe); void ordered_events__reinit(struct ordered_events *oe); static inline void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size) { oe->max_alloc_size = size; } static inline void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy) { oe->copy_on_queue = copy; } #endif /* __ORDERED_EVENTS_H */ d599c7289526eed96541a0654'>refslogtreecommitdiff
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /net/wireless/lib80211_crypt_tkip.c
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/wireless/lib80211_crypt_tkip.c')