LTTng : Linux Trace Toolkit Next Generation 0.5.95, kernel 2.6.17

PATCH New Mathieu Desnoyers 1 participant 1 message Aug 30, 2006

Subsystems (4)

Documentation VFS Block layer Relay

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Mathieu Desnoyers

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2006-08-30 23:14 UTC #0 lore raw

PATCH 3/16 LTTng : Linux Trace Toolkit Next Generation 0.5.95, kernel 2.6.17

3- RelayFS modifications to apply some enhancements (may eventually be merged and/or partially fulfilled by debugfs) patch-2.6.17-lttng-0.5.95-relayfs.diff

OpenPGP public key:              http://krystal.dyndns.org:8080/key/compudj.gpg
Key fingerprint:     8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

Documentation/ioctl-number.txt +3 -0

@@ -190,3 +190,6 @@ Code	Seq#	Include File		Comments
 					<mailto:[email protected]>
 0xF3	00-3F	video/sisfb.h		sisfb (in development)
 					<mailto:[email protected]>
+0xF4	00-3F	linux/relayfs_fs.h RelayFS
+					<mailto:[email protected]>
+

include/linux/relay.h +67 -1

138 lines not on this page · raw message

fs/relayfs/Makefile new file +4 -0

index 29b7d4f..1f4f293 100644
@@ -0,0 +1,4 @@
+obj-$(CONFIG_RELAY)	 += relayfs.o
+
+relayfs-y := relay.o inode.o buffers.o
+

fs/relayfs/inode.c new file +591 -0

591 lines not on this page · raw message

fs/relayfs/relay.c new file +560 -0

560 lines not on this page · raw message

fs/relayfs/buffers.c new file +190 -0

190 lines not on this page · raw message

fs/relayfs/buffers.h new file +9 -0

new file mode 100644
index 0000000..0d82650
@@ -0,0 +1,9 @@
+#ifndef _BUFFERS_H
+#define _BUFFERS_H
+
+extern int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma);
+extern struct rchan_buf *relay_create_buf(struct rchan *chan);
+extern void relay_destroy_buf(struct rchan_buf *buf);
+extern void relay_remove_buf(struct kref *kref);
+
+#endif/* _BUFFERS_H */

fs/relayfs/relay.h new file +12 -0

new file mode 100644
index 0000000..5901758
@@ -0,0 +1,12 @@
+#ifndef _RELAY_H
+#define _RELAY_H
+
+extern int relayfs_remove(struct dentry *dentry);
+extern int relay_buf_empty(struct rchan_buf *buf);
+extern int relay_buf_full(struct rchan_buf *buf);
+extern void relay_destroy_channel(struct kref *kref);
+extern void setup_fileops(struct rchan *chan,
+				   struct file_operations *fops,
+					 struct module *client_module);
+
+#endif /* _RELAY_H */

fs/Makefile +1 -0

index a8109ba..6ba54c5 100644
@@ -102,3 +102,4 @@ obj-$(CONFIG_HOSTFS)		+= hostfs/
 obj-$(CONFIG_HPPFS)		+= hppfs/
 obj-$(CONFIG_DEBUG_FS)		+= debugfs/
 obj-$(CONFIG_OCFS2_FS)		+= ocfs2/
+obj-$(CONFIG_RELAY)		+= relayfs/

block/blktrace.c +1 -1

index 23f1f3a..a080eeb 100644
@@ -330,7 +330,7 @@ static int blk_trace_setup(request_queue
 	if (!bt->dropped_file)
 		goto err;
 
-	bt->rchan = relay_open("trace", dir, buts.buf_size, buts.buf_nr, &blk_relay_callbacks);
+	bt->rchan = relay_open("trace", dir, buts.buf_size, buts.buf_nr, 0, THIS_MODULE, &blk_relay_callbacks, NULL, NULL, NULL);
 	if (!bt->rchan)
 		goto err;
 	bt->rchan->private_data = bt;

fs/Makefile +0 -0

index 078d3d1..1fed2f2 100644