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b=19944 promise every cpu has at least 2MB debug memory.
[fs/lustre-release.git]
/
libcfs
/
libcfs
/
tracefile.c
diff --git
a/libcfs/libcfs/tracefile.c
b/libcfs/libcfs/tracefile.c
index
63a23ef
..
47f3ab5
100644
(file)
--- a/
libcfs/libcfs/tracefile.c
+++ b/
libcfs/libcfs/tracefile.c
@@
-907,8
+907,11
@@
int cfs_trace_set_debug_mb(int mb)
int limit = cfs_trace_max_debug_mb();
struct cfs_trace_cpu_data *tcd;
int limit = cfs_trace_max_debug_mb();
struct cfs_trace_cpu_data *tcd;
- if (mb < cfs_num_possible_cpus())
+ if (mb < cfs_num_possible_cpus()) {
+ printk(KERN_ERR "Cannot set debug_mb to %d, the value should be >= %d\n",
+ mb, num_possible_cpus());
return -EINVAL;
return -EINVAL;
+ }
if (mb > limit) {
printk(CFS_KERN_ERR "Lustre: Refusing to set debug buffer size "
if (mb > limit) {
printk(CFS_KERN_ERR "Lustre: Refusing to set debug buffer size "