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| author | H. Peter Anvin <hpa@zytor.com> | 2012-03-30 17:38:33 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-03-30 17:38:33 -0700 |
| commit | 73caae75a315c3de65ac25c9d5f521c1a4d3847f (patch) | |
| tree | 11ca56d2c3e9b04f3cf00860e5186d559e3a6d73 | |
| parent | 030b9a942871e73e36930154e4d484657ac8e5fa (diff) | |
| download | syslinux-73caae75a315c3de65ac25c9d5f521c1a4d3847f.tar.gz syslinux-73caae75a315c3de65ac25c9d5f521c1a4d3847f.tar.xz syslinux-73caae75a315c3de65ac25c9d5f521c1a4d3847f.zip | |
pxe: Make the ISR poll routine a bit saner
It's not great, but it's all we have...
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| -rw-r--r-- | core/fs/pxe/isr.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/core/fs/pxe/isr.c b/core/fs/pxe/isr.c index 709d48e6..c073e032 100644 --- a/core/fs/pxe/isr.c +++ b/core/fs/pxe/isr.c @@ -164,9 +164,12 @@ static void pxe_poll_thread(void *dummy) (void)dummy; for (;;) { - thread_yield(); - if (pxe_isr_poll()) + cli(); + if (pxe_receive_thread_sem.count < 0 && pxe_isr_poll()) sem_up(&pxe_receive_thread_sem); + __schedule(); + sti(); + cpu_relax(); } } |