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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 03:55:34 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 12:48:45 -0500
commitd54b1fdb1d9f82e375a299e22bd366aad52d4c34 (patch)
treef94768d59702dbbc0beb9a70d9be65dbc5e5108d /drivers/oprofile/event_buffer.h
parentfa027c2a0a0d6d1df6b29ee99048502c93da0dd4 (diff)
[PATCH] mark struct file_operations const 5
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/oprofile/event_buffer.h')
-rw-r--r--drivers/oprofile/event_buffer.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/oprofile/event_buffer.h b/drivers/oprofile/event_buffer.h
index 92416276e577..9b6a4ebd03e3 100644
--- a/drivers/oprofile/event_buffer.h
+++ b/drivers/oprofile/event_buffer.h
@@ -41,7 +41,7 @@ void wake_up_buffer_waiter(void);
41/* add data to the event buffer */ 41/* add data to the event buffer */
42void add_event_entry(unsigned long data); 42void add_event_entry(unsigned long data);
43 43
44extern struct file_operations event_buffer_fops; 44extern const struct file_operations event_buffer_fops;
45 45
46/* mutex between sync_cpu_buffers() and the 46/* mutex between sync_cpu_buffers() and the
47 * file reading code. 47 * file reading code.