search for: ac238d3f1f4

..._read(&mm->mmap_sem); - if (ret == -EAGAIN) { + if (ret == -EBUSY) { /* * No need to check hmm_range_wait_until_valid() return value * on retry we will get proper error with hmm_range_snapshot() diff --git a/mm/hmm.c b/mm/hmm.c index ac238d3f1f4e..3abc2e3c1e9f 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -951,7 +951,7 @@ EXPORT_SYMBOL(hmm_range_unregister); * @range: range * Return: -EINVAL if invalid argument, -ENOMEM out of memory, -EPERM invalid * permission (for instance asking for write and range is read only), - *...

...range_valid(range); - - hmm_range_unregister(range); - return ret; -} - /* This is a temporary helper to avoid merge conflict between trees. */ static inline int hmm_vma_fault(struct hmm_mirror *mirror, struct hmm_range *range, bool block) diff --git a/mm/hmm.c b/mm/hmm.c index d48b9283725a..ac238d3f1f4e 100644 --- a/mm/hmm.c +++ b/mm/hmm.c @@ -917,11 +917,15 @@ EXPORT_SYMBOL(hmm_range_register); * * Range struct is used to track updates to the CPU page table after a call to * hmm_range_register(). See include/linux/hmm.h for how to use it. + * + * Return: %true if the range was still valid...

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which fixes up the mmap_sem locking in nouveau and while at it also removes leftover legacy HMM APIs only used by nouveau.