From e0212dfa1353310ab903263f8c737b8fb40b4fff Mon Sep 17 00:00:00 2001 From: Ramon Fried Date: Fri, 8 Jun 2018 20:53:27 +0300 Subject: iotrace: fix behaviour when buffer is full Don't continue updating the offset when buffer is full. When the buffer size exhausts and there's no space left to write warn the user and update only the needed size and not both the offset and needed size. Add needed buffer size information in the iotrace command. Signed-off-by: Ramon Fried --- include/iotrace.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include/iotrace.h') diff --git a/include/iotrace.h b/include/iotrace.h index 063371f23f..be1d2753e1 100644 --- a/include/iotrace.h +++ b/include/iotrace.h @@ -146,11 +146,12 @@ void iotrace_set_buffer(ulong start, ulong size); * iotrace_get_buffer() - Get buffer information * * @start: Returns start address of buffer - * @size: Returns size of buffer in bytes + * @size: Returns actual size of buffer in bytes + * @needed_size: Returns needed size of buffer in bytes * @offset: Returns the byte offset where the next output trace record will * @count: Returns the number of trace records recorded * be written (or would be if the buffer was large enough) */ -void iotrace_get_buffer(ulong *start, ulong *size, ulong *offset, ulong *count); +void iotrace_get_buffer(ulong *start, ulong *size, ulong *needed_size, ulong *offset, ulong *count); #endif /* __IOTRACE_H */ -- cgit v1.2.1