diff options
Diffstat (limited to 'arch/x86/kernel/tlb_uv.c')
| -rw-r--r-- | arch/x86/kernel/tlb_uv.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 312ef029281..20ea20a39e2 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -1001,10 +1001,10 @@ static int uv_ptc_seq_show(struct seq_file *file, void *data) static ssize_t tunables_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[300]; + char *buf; int ret; - ret = snprintf(buf, 300, "%s %s %s\n%d %d %d %d %d %d %d %d %d\n", + buf = kasprintf(GFP_KERNEL, "%s %s %s\n%d %d %d %d %d %d %d %d %d\n", "max_bau_concurrent plugged_delay plugsb4reset", "timeoutsb4reset ipi_reset_limit complete_threshold", "congested_response_us congested_reps congested_period", @@ -1012,7 +1012,12 @@ static ssize_t tunables_read(struct file *file, char __user *userbuf, timeoutsb4reset, ipi_reset_limit, complete_threshold, congested_response_us, congested_reps, congested_period); - return simple_read_from_buffer(userbuf, count, ppos, buf, ret); + if (!buf) + return -ENOMEM; + + ret = simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); + kfree(buf); + return ret; } /* @@ -1285,6 +1290,7 @@ static const struct file_operations tunables_fops = { .open = tunables_open, .read = tunables_read, .write = tunables_write, + .llseek = default_llseek, }; static int __init uv_ptc_init(void) |