diff options
| author | Jan Engelmohr <jan.engelmohr@mailbox.tu-dresden.de> | 2016-07-26 18:10:00 +0200 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-08-26 15:59:39 +0200 |
| commit | d2ee3e254ee0939806c103c145035ddac9fe5953 (patch) | |
| tree | 2fc8a4984c6cec24591bb68f3e0623bd1c1d45fc /drivers/usb/core/buffer.c | |
| parent | a2904e3eed56216fe65091d9b3638ae1f90e43fa (diff) | |
3.10.70 -> 3.10.71
Diffstat (limited to 'drivers/usb/core/buffer.c')
| -rw-r--r-- | drivers/usb/core/buffer.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index b0585e623..19fa68a73 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -22,17 +22,25 @@ */ /* FIXME tune these based on pool statistics ... */ -static const size_t pool_max[HCD_BUFFER_POOLS] = { - /* platforms without dma-friendly caches might need to - * prevent cacheline sharing... - */ - 32, - 128, - 512, - PAGE_SIZE / 2 - /* bigger --> allocate pages */ +static size_t pool_max[HCD_BUFFER_POOLS] = { + 32, 128, 512, 2048, }; +void __init usb_init_pool_max(void) +{ + /* + * The pool_max values must never be smaller than + * ARCH_KMALLOC_MINALIGN. + */ + if (ARCH_KMALLOC_MINALIGN <= 32) + ; /* Original value is okay */ + else if (ARCH_KMALLOC_MINALIGN <= 64) + pool_max[0] = 64; + else if (ARCH_KMALLOC_MINALIGN <= 128) + pool_max[0] = 0; /* Don't use this pool */ + else + BUILD_BUG(); /* We don't allow this */ +} /* SETUP primitives */ |