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author | Paolo Bonzini <pbonzini@redhat.com> | 2021-01-07 18:06:52 -0500 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-01-07 18:06:52 -0500 |
commit | bc351f07260533cc1b3987339551decd00ddd52e (patch) | |
tree | 3b6f396681f08dacc8dd24ce2c586ea2195e825d /net/xdp/xdp_umem.c | |
parent | d45f89f7437d0f2c8275b4434096164db106384d (diff) | |
parent | 9aa418792f5f11ef5d6f72265e1f8ae07efd5784 (diff) | |
download | linux-bc351f07260533cc1b3987339551decd00ddd52e.tar.bz2 |
Merge branch 'kvm-master' into kvm-next
Fixes to get_mmio_spte, destined to 5.10 stable branch.
Diffstat (limited to 'net/xdp/xdp_umem.c')
-rw-r--r-- | net/xdp/xdp_umem.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index 56d052bc65cb..56a28a686988 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -66,18 +66,31 @@ static void xdp_umem_release(struct xdp_umem *umem) kfree(umem); } +static void xdp_umem_release_deferred(struct work_struct *work) +{ + struct xdp_umem *umem = container_of(work, struct xdp_umem, work); + + xdp_umem_release(umem); +} + void xdp_get_umem(struct xdp_umem *umem) { refcount_inc(&umem->users); } -void xdp_put_umem(struct xdp_umem *umem) +void xdp_put_umem(struct xdp_umem *umem, bool defer_cleanup) { if (!umem) return; - if (refcount_dec_and_test(&umem->users)) - xdp_umem_release(umem); + if (refcount_dec_and_test(&umem->users)) { + if (defer_cleanup) { + INIT_WORK(&umem->work, xdp_umem_release_deferred); + schedule_work(&umem->work); + } else { + xdp_umem_release(umem); + } + } } static int xdp_umem_pin_pages(struct xdp_umem *umem, unsigned long address) |