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Prevent re-entrancy in callstack-user context
[lttng-modules.git]
/
lib
/
ringbuffer
/
ring_buffer_vfs.c
diff --git
a/lib/ringbuffer/ring_buffer_vfs.c
b/lib/ringbuffer/ring_buffer_vfs.c
index f1a8bab781cd2f5829c552067eefdb2365c1f2e7..97be835655a8c0f665526f8471aa1030e140b561 100644
(file)
--- a/
lib/ringbuffer/ring_buffer_vfs.c
+++ b/
lib/ringbuffer/ring_buffer_vfs.c
@@
-193,6
+193,9
@@
long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd,
case RING_BUFFER_SNAPSHOT:
return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot,
&buf->prod_snapshot);
case RING_BUFFER_SNAPSHOT:
return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot,
&buf->prod_snapshot);
+ case RING_BUFFER_SNAPSHOT_SAMPLE_POSITIONS:
+ return lib_ring_buffer_snapshot_sample_positions(buf,
+ &buf->cons_snapshot, &buf->prod_snapshot);
case RING_BUFFER_SNAPSHOT_GET_CONSUMED:
return put_ulong(buf->cons_snapshot, arg);
case RING_BUFFER_SNAPSHOT_GET_PRODUCED:
case RING_BUFFER_SNAPSHOT_GET_CONSUMED:
return put_ulong(buf->cons_snapshot, arg);
case RING_BUFFER_SNAPSHOT_GET_PRODUCED:
@@
-270,6
+273,9
@@
long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd,
case RING_BUFFER_FLUSH:
lib_ring_buffer_switch_remote(buf);
return 0;
case RING_BUFFER_FLUSH:
lib_ring_buffer_switch_remote(buf);
return 0;
+ case RING_BUFFER_FLUSH_EMPTY:
+ lib_ring_buffer_switch_remote_empty(buf);
+ return 0;
default:
return -ENOIOCTLCMD;
}
default:
return -ENOIOCTLCMD;
}
@@
-322,6
+328,9
@@
long lib_ring_buffer_compat_ioctl(struct file *filp, unsigned int cmd,
case RING_BUFFER_COMPAT_SNAPSHOT:
return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot,
&buf->prod_snapshot);
case RING_BUFFER_COMPAT_SNAPSHOT:
return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot,
&buf->prod_snapshot);
+ case RING_BUFFER_COMPAT_SNAPSHOT_SAMPLE_POSITIONS:
+ return lib_ring_buffer_snapshot_sample_positions(buf,
+ &buf->cons_snapshot, &buf->prod_snapshot);
case RING_BUFFER_COMPAT_SNAPSHOT_GET_CONSUMED:
return compat_put_ulong(buf->cons_snapshot, arg);
case RING_BUFFER_COMPAT_SNAPSHOT_GET_PRODUCED:
case RING_BUFFER_COMPAT_SNAPSHOT_GET_CONSUMED:
return compat_put_ulong(buf->cons_snapshot, arg);
case RING_BUFFER_COMPAT_SNAPSHOT_GET_PRODUCED:
@@
-415,6
+424,9
@@
long lib_ring_buffer_compat_ioctl(struct file *filp, unsigned int cmd,
case RING_BUFFER_COMPAT_FLUSH:
lib_ring_buffer_switch_remote(buf);
return 0;
case RING_BUFFER_COMPAT_FLUSH:
lib_ring_buffer_switch_remote(buf);
return 0;
+ case RING_BUFFER_COMPAT_FLUSH_EMPTY:
+ lib_ring_buffer_switch_remote_empty(buf);
+ return 0;
default:
return -ENOIOCTLCMD;
}
default:
return -ENOIOCTLCMD;
}
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