[PATCH RFC PKS/PMEM 38/58] fs/isofs: Utilize new kmap_thread()
From: <hidden>
Date: 2020-10-09 20:00:45
Also in:
amd-gfx, bpf, ceph-devel, dri-devel, intel-gfx, intel-wired-lan, io-uring, kexec, kvm, linux-bcache, linux-block, linux-btrfs, linux-cifs, linux-doc, linux-efi, linux-ext4, linux-f2fs-devel, linux-fsdevel, linux-kselftest, linux-mm, linux-mmc, linux-nfs, linux-rdma, linux-scsi, linux-um, linuxppc-dev, lkml, nvdimm, target-devel, xen-devel
Subsystem:
filesystems (vfs and infrastructure), isofs filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Jan Kara, Linus Torvalds
From: Ira Weiny <redacted> These kmap() calls are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call. Signed-off-by: Ira Weiny <redacted> --- fs/isofs/compress.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index bc12ac7e2312..ddd3fd99d2e1 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c@@ -344,7 +344,7 @@ static int zisofs_readpage(struct file *file, struct page *page) pages[i] = grab_cache_page_nowait(mapping, index); if (pages[i]) { ClearPageError(pages[i]); - kmap(pages[i]); + kmap_thread(pages[i]); } }
@@ -356,7 +356,7 @@ static int zisofs_readpage(struct file *file, struct page *page) flush_dcache_page(pages[i]); if (i == full_page && err) SetPageError(pages[i]); - kunmap(pages[i]); + kunmap_thread(pages[i]); unlock_page(pages[i]); if (i != full_page) put_page(pages[i]);
--
2.28.0.rc0.12.gb6a658bd00c9