Alexei Starovoitov db20fd2b01 bpf: add lookup/update/delete/iterate methods to BPF maps ... 'maps' is a generic storage of different types for sharing data between kernel and userspace. The maps are accessed from user space via BPF syscall, which has commands: - create a map with given type and attributes fd = bpf(BPF_MAP_CREATE, union bpf_attr *attr, u32 size) returns fd or negative error - lookup key in a given map referenced by fd err = bpf(BPF_MAP_LOOKUP_ELEM, union bpf_attr *attr, u32 size) using attr->map_fd, attr->key, attr->value returns zero and stores found elem into value or negative error - create or update key/value pair in a given map err = bpf(BPF_MAP_UPDATE_ELEM, union bpf_attr *attr, u32 size) using attr->map_fd, attr->key, attr->value returns zero or negative error - find and delete element by key in a given map err = bpf(BPF_MAP_DELETE_ELEM, union bpf_attr *attr, u32 size) using attr->map_fd, attr->key - iterate map elements (based on input key return next_key) err = bpf(BPF_MAP_GET_NEXT_KEY, union bpf_attr *attr, u32 size) using attr->map_fd, attr->key, attr->next_key - close(fd) deletes the map Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-09-26 15:05:14 -04:00
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asm-generic	bpf: enable bpf syscall on x64 and i386	2014-09-26 15:05:14 -04:00
drm	drm/radeon: properly document reloc priority mask	2014-08-18 17:09:43 -04:00
linux	bpf: add lookup/update/delete/iterate methods to BPF maps	2014-09-26 15:05:14 -04:00
mtd	mtd: lpddr: add driver for LPDDR2-NVM PCM memories	2014-05-20 17:45:17 -07:00
rdma	Merge branches 'core', 'cxgb4', 'ipoib', 'iser', 'iwcm', 'mad', 'misc', 'mlx4', 'mlx5', 'ocrdma' and 'srp' into for-next	2014-08-14 08:58:04 -07:00
scsi
sound	ALSA: pcm: Introduce protocol version field to sw_params	2014-07-21 09:07:46 +02:00
video
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