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HFI1: do device ioremap() mappings in per-process fashion

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This commit is contained in:
Balazs Gerofi
2017-08-18 20:15:48 +09:00
parent 5ac582a678
commit 62e438a0aa
4 changed files with 226 additions and 148 deletions
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6
kernel/file_ops.c
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@@ -416,6 +416,8 @@ static long hfi1_file_ioctl(struct file *fp, unsigned int cmd,
}
#endif /* __HFI1_ORIG__ */
int hfi1_map_device_addresses(struct hfi1_filedata *fd);
#ifdef __HFI1_ORIG__
static ssize_t hfi1_aio_write(struct kiocb *kiocb, const struct iovec *iovec,
unsigned long dim, loff_t offset)
@@ -452,6 +454,10 @@ ssize_t hfi1_aio_write(void *private_data, const struct iovec *iovec, unsigned l
if (!dim)
return -EINVAL;
if (hfi1_map_device_addresses(fd) < 0) {
return -EINVAL;
}
hfi1_cdbg(SDMA, "SDMA request from %u:%u (%lu)",
fd->uctxt->ctxt, fd->subctxt, dim);