diff options
Diffstat (limited to 'storage')
| -rw-r--r-- | storage/myisam/mi_dynrec.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/storage/myisam/mi_dynrec.c b/storage/myisam/mi_dynrec.c index 09152f8d013..4153f55aa3c 100644 --- a/storage/myisam/mi_dynrec.c +++ b/storage/myisam/mi_dynrec.c @@ -66,9 +66,12 @@ static int _mi_cmp_buffer(File file, const uchar *buff, my_off_t filepos, my_bool mi_dynmap_file(MI_INFO *info, my_off_t size) { DBUG_ENTER("mi_dynmap_file"); - if (size > (my_off_t) (~((size_t) 0))) + if (size == 0 || size > (my_off_t) (~((size_t) 0))) { - DBUG_PRINT("warning", ("File is too large for mmap")); + if (size) + DBUG_PRINT("warning", ("File is too large for mmap")); + else + DBUG_PRINT("warning", ("Do not mmap zero-length")); DBUG_RETURN(1); } /* |