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authorJeremy Erickson <jerickso@cs.unc.edu>2014-04-18 17:06:00 -0400
committerJeremy Erickson <jerickso@cs.unc.edu>2014-04-18 17:06:00 -0400
commita215aa7b9ab3759c047201199fba64d3042d7f13 (patch)
treebca37493d9b2233450e6d3ffced1261d0e4f71fe /drivers/char/ramoops.c
parentd31199a77ef606f1d06894385f1852181ba6136b (diff)
Update 2.6.36 to 2.6.36.4wip-dissipation2-jerickso
Diffstat (limited to 'drivers/char/ramoops.c')
-rw-r--r--drivers/char/ramoops.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index 74f00b5ffa36..9445f48c692f 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -27,7 +27,6 @@
27#include <linux/ioport.h> 27#include <linux/ioport.h>
28 28
29#define RAMOOPS_KERNMSG_HDR "====" 29#define RAMOOPS_KERNMSG_HDR "===="
30#define RAMOOPS_HEADER_SIZE (5 + sizeof(struct timeval))
31 30
32#define RECORD_SIZE 4096 31#define RECORD_SIZE 4096
33 32
@@ -63,8 +62,8 @@ static void ramoops_do_dump(struct kmsg_dumper *dumper,
63 struct ramoops_context, dump); 62 struct ramoops_context, dump);
64 unsigned long s1_start, s2_start; 63 unsigned long s1_start, s2_start;
65 unsigned long l1_cpy, l2_cpy; 64 unsigned long l1_cpy, l2_cpy;
66 int res; 65 int res, hdr_size;
67 char *buf; 66 char *buf, *buf_orig;
68 struct timeval timestamp; 67 struct timeval timestamp;
69 68
70 /* Only dump oopses if dump_oops is set */ 69 /* Only dump oopses if dump_oops is set */
@@ -72,6 +71,8 @@ static void ramoops_do_dump(struct kmsg_dumper *dumper,
72 return; 71 return;
73 72
74 buf = (char *)(cxt->virt_addr + (cxt->count * RECORD_SIZE)); 73 buf = (char *)(cxt->virt_addr + (cxt->count * RECORD_SIZE));
74 buf_orig = buf;
75
75 memset(buf, '\0', RECORD_SIZE); 76 memset(buf, '\0', RECORD_SIZE);
76 res = sprintf(buf, "%s", RAMOOPS_KERNMSG_HDR); 77 res = sprintf(buf, "%s", RAMOOPS_KERNMSG_HDR);
77 buf += res; 78 buf += res;
@@ -79,8 +80,9 @@ static void ramoops_do_dump(struct kmsg_dumper *dumper,
79 res = sprintf(buf, "%lu.%lu\n", (long)timestamp.tv_sec, (long)timestamp.tv_usec); 80 res = sprintf(buf, "%lu.%lu\n", (long)timestamp.tv_sec, (long)timestamp.tv_usec);
80 buf += res; 81 buf += res;
81 82
82 l2_cpy = min(l2, (unsigned long)(RECORD_SIZE - RAMOOPS_HEADER_SIZE)); 83 hdr_size = buf - buf_orig;
83 l1_cpy = min(l1, (unsigned long)(RECORD_SIZE - RAMOOPS_HEADER_SIZE) - l2_cpy); 84 l2_cpy = min(l2, (unsigned long)(RECORD_SIZE - hdr_size));
85 l1_cpy = min(l1, (unsigned long)(RECORD_SIZE - hdr_size) - l2_cpy);
84 86
85 s2_start = l2 - l2_cpy; 87 s2_start = l2 - l2_cpy;
86 s1_start = l1 - l1_cpy; 88 s1_start = l1 - l1_cpy;