[PATCH RFC PKS/PMEM 25/58] fs/reiserfs: Utilize new kmap_thread()
From: ira.weiny@intel.com
Date: 2020-10-09 20:06:03
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), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
From: Ira Weiny <ira.weiny@intel.com> The kmap() calls in this FS are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call. Cc: Jan Kara <jack@suse.cz> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Randy Dunlap <redacted> Cc: Alex Shi <redacted> Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- fs/reiserfs/journal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index e98f99338f8f..be8f56261e8c 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c@@ -4194,11 +4194,11 @@ static int do_journal_end(struct reiserfs_transaction_handle *th, int flags) SB_ONDISK_JOURNAL_SIZE(sb))); set_buffer_uptodate(tmp_bh); page = cn->bh->b_page; - addr = kmap(page); + addr = kmap_thread(page); memcpy(tmp_bh->b_data, addr + offset_in_page(cn->bh->b_data), cn->bh->b_size); - kunmap(page); + kunmap_thread(page); mark_buffer_dirty(tmp_bh); jindex++; set_buffer_journal_dirty(cn->bh);
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2.28.0.rc0.12.gb6a658bd00c9