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perf: Make bp_len type to u64 generic across the arch

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Change 'bp_len' type to __u64 to make it work across archs as
the s390 architecture watch point length can be upto 2^64.

reference:
	http://lkml.org/lkml/2010/1/25/212

This is an ABI change that is not backward compatible with
the previous hardware breakpoint info layout integrated in this
development cycle, a rebuilt of perf tools is necessary for
versions based on 2.6.33-rc1 - 2.6.33-rc6 to work with a
kernel based on this patch.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
Cc: Maneesh Soni <maneesh@in.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin <schwidefsky@de.ibm.com>
LKML-Reference: <20100130045518.GA20776@in.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Mahesh Salgaonkar
2010-01-30 10:25:18 +05:30
committed by Frederic Weisbecker
parent c80d292f13
commit cd757645fb
4 changed files with 5 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/linux/perf_event.h
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@@ -211,11 +211,9 @@ struct perf_event_attr {
__u32 wakeup_watermark; /* bytes before wakeup */
};
__u32 __reserved_2;
__u64 bp_addr;
__u32 bp_type;
__u32 bp_len;
__u64 bp_addr;
__u64 bp_len;
};
/*