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after merge fix

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svoj@april.(none) 2006-04-24 20:19:32 +05:00
parent a83c4b6841
commit afdb3faae1
1 changed files with 5 additions and 0 deletions
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5
storage/myisam/mi_dynrec.c
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@ -67,6 +67,11 @@ static int _mi_cmp_buffer(File file, const byte *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)) - MEMMAP_EXTRA_MARGIN)
{
DBUG_PRINT("warning", ("File is too large for mmap"));
DBUG_RETURN(1);
}
info->s->file_map= (byte*)
my_mmap(0, (size_t)(size + MEMMAP_EXTRA_MARGIN),
info->s->mode==O_RDONLY ? PROT_READ :