mirror of https://gitee.com/openkylin/linux.git
e2773c062e
First of a series of patches which add support for direct userspace access to InfiniBand hardware -- so-called "userspace verbs." I believe these patches are ready to merge, but a final review would be useful. These patches should incorporate all of the feedback from the discussion when I posted an earlier version back in April (see http://lkml.org/lkml/2005/4/4/267 for the start of the thread). In particular, memory pinned for use by userspace is accounted for in current->mm->vm_locked and requests to pin memory are checked against RLIMIT_MEMLOCK. This patch: Modify the ib_verbs.h header file with changes required for InfiniBand userspace verbs support. We add a few structures to keep track of userspace context, and extend the driver API so that low-level drivers know when they're creating resources that will be used from userspace. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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