[PATCH RFC PKS/PMEM 39/58] fs/jffs2: Utilize new kmap_thread()
From: ira.weiny@intel.com
Date: 2020-10-09 19:53:32
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), journalling flash file system v2 (jffs2), the rest · Maintainers:
Alexander Viro, Christian Brauner, David Woodhouse, Richard Weinberger, Linus Torvalds
From: Ira Weiny <ira.weiny@intel.com> 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 <ira.weiny@intel.com> --- fs/jffs2/file.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 3e6d54f9b011..14dd2b18cc16 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c@@ -287,13 +287,13 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping, /* In 2.4, it was already kmapped by generic_file_write(). Doesn't hurt to do it again. The alternative is ifdefs, which are ugly. */ - kmap(pg); + kmap_thread(pg); ret = jffs2_write_inode_range(c, f, ri, page_address(pg) + aligned_start, (pg->index << PAGE_SHIFT) + aligned_start, end - aligned_start, &writtenlen); - kunmap(pg); + kunmap_thread(pg); if (ret) { /* There was an error writing. */
--
2.28.0.rc0.12.gb6a658bd00c9