From 5fe0fc9f1de63de748b87f121c038d39192a271d Mon Sep 17 00:00:00 2001 From: Peng Hao Date: Wed, 8 Sep 2021 16:38:28 +0800 Subject: fuse: use kmap_local_page() Due to the introduction of kmap_local_*, the storage of slots used for short-term mapping has changed from per-CPU to per-thread. kmap_atomic() disable preemption, while kmap_local_*() only disable migration. There is no need to disable preemption in several kamp_atomic places used in fuse. Link: https://lwn.net/Articles/836144/ Signed-off-by: Peng Hao Signed-off-by: Miklos Szeredi --- fs/fuse/ioctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/fuse/ioctl.c') diff --git a/fs/fuse/ioctl.c b/fs/fuse/ioctl.c index 546ea3d58fb4..fbc09dab1f85 100644 --- a/fs/fuse/ioctl.c +++ b/fs/fuse/ioctl.c @@ -286,11 +286,11 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg, in_iovs + out_iovs > FUSE_IOCTL_MAX_IOV) goto out; - vaddr = kmap_atomic(ap.pages[0]); + vaddr = kmap_local_page(ap.pages[0]); err = fuse_copy_ioctl_iovec(fm->fc, iov_page, vaddr, transferred, in_iovs + out_iovs, (flags & FUSE_IOCTL_COMPAT) != 0); - kunmap_atomic(vaddr); + kunmap_local(vaddr); if (err) goto out; -- cgit v1.2.3