# system call top # (c) 2010, Tom Zanussi # Licensed under the terms of the GNU GPL License version 2 # # Periodically displays system-wide system call totals, broken down by # syscall. If a [comm] arg is specified, only syscalls called by # [comm] are displayed. If an [interval] arg is specified, the display # will be refreshed every [interval] seconds. The default interval is # 3 seconds. import os, sys, thread, time sys.path.append(os.environ['PERF_EXEC_PATH'] + \ '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') from perf_trace_context import * from Core import * from Util import * usage = "perf script -s sctop.py [comm] [interval]\n"; for_comm = None default_interval = 3 interval = default_interval if len(sys.argv) > 3: sys.exit(usage) if len(sys.argv) > 2: for_comm = sys.argv[1] interval = int(sys.argv[2]) elif len(sys.argv) > 1: try: interval = int(sys.argv[1]) except ValueError: for_comm = sys.argv[1] interval = default_interval syscalls = autodict() def trace_begin(): thread.start_new_thread(print_syscall_totals, (interval,)) pass def raw_syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, common_callchain, id, args): if for_comm is not None: if common_comm != for_comm: return try: syscalls[id] += 1 except TypeError: syscalls[id] = 1 def syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, id, args): raw_syscalls__sys_enter(**locals()) def print_syscall_totals(interval): while 1: clear_term() if for_comm is not None: print "\nsyscall events for %s:\n\n" % (for_comm), else: print "\nsyscall events:\n\n", print "%-40s %10s\n" % ("event", "count"), print "%-40s %10s\n" % ("----------------------------------------", \ "----------"), for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \ reverse = True): try: print "%-40s %10d\n" % (syscall_name(id), val), except TypeError: pass syscalls.clear() time.sleep(interval) include/crypto/internal/simd.h?h=nds-private-remove&id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>commitdiff
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authorSriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>2017-01-09 16:00:44 +0530
committerJ. Bruce Fields <bfields@redhat.com>2017-01-12 16:14:47 -0500
commitce1ca7d2d140a1f4aaffd297ac487f246963dd2f (patch)
tree5aeab5e0cb6ef404c894a18251588278b9432a2c /include/crypto/internal/simd.h
parent546125d1614264d26080817d0c8cddb9b25081fa (diff)
svcrdma: avoid duplicate dma unmapping during error recovery
In rdma_read_chunk_frmr() when ib_post_send() fails, the error code path invokes ib_dma_unmap_sg() to unmap the sg list. It then invokes svc_rdma_put_frmr() which in turn tries to unmap the same sg list through ib_dma_unmap_sg() again. This second unmap is invalid and could lead to problems when the iova being unmapped is subsequently reused. Remove the call to unmap in rdma_read_chunk_frmr() and let svc_rdma_put_frmr() handle it. Fixes: 412a15c0fe53 ("svcrdma: Port to new memory registration API") Cc: stable@vger.kernel.org Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/crypto/internal/simd.h')