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| author | David S. Miller | 2017-08-10 21:09:13 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-08-10 21:09:13 +0200 |
| commit | 2f7043a37708110aa98262b91702da6bc32e17b6 (patch) | |
| tree | de0525dae8420a56f9a00def631ccc0108d9d091 /fs/userfaultfd.c | |
| parent | sparc64: Revert 16GB huge page support. (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | kernel-qcow2-linux-2f7043a37708110aa98262b91702da6bc32e17b6.tar.gz kernel-qcow2-linux-2f7043a37708110aa98262b91702da6bc32e17b6.tar.xz kernel-qcow2-linux-2f7043a37708110aa98262b91702da6bc32e17b6.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Diffstat (limited to 'fs/userfaultfd.c')
| -rw-r--r-- | fs/userfaultfd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index cadcd12a3d35..06ea26b8c996 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -854,6 +854,9 @@ wakeup: __wake_up_locked_key(&ctx->fault_wqh, TASK_NORMAL, &range); spin_unlock(&ctx->fault_pending_wqh.lock); + /* Flush pending events that may still wait on event_wqh */ + wake_up_all(&ctx->event_wqh); + wake_up_poll(&ctx->fd_wqh, POLLHUP); userfaultfd_ctx_put(ctx); return 0; @@ -1643,6 +1646,8 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx, ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start, uffdio_zeropage.range.len); mmput(ctx->mm); + } else { + return -ENOSPC; } if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage))) return -EFAULT; |