[PATCH RFC PKS/PMEM 26/58] fs/zonefs: Utilize new kmap_thread()
From: ira.weiny@intel.com
Date: 2020-10-09 20:04:22
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, lkml, netdev, nvdimm, target-devel, xen-devel
Subsystem:
filesystems (vfs and infrastructure), the rest, zonefs filesystem · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Damien Le Moal, Naohiro Aota
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: Damien Le Moal <redacted> Cc: Naohiro Aota <naohiro.aota@wdc.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- fs/zonefs/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index 8ec7c8f109d7..2fd6c86beee1 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c@@ -1297,7 +1297,7 @@ static int zonefs_read_super(struct super_block *sb) if (ret) goto free_page; - super = kmap(page); + super = kmap_thread(page); ret = -EINVAL; if (le32_to_cpu(super->s_magic) != ZONEFS_MAGIC)
@@ -1349,7 +1349,7 @@ static int zonefs_read_super(struct super_block *sb) ret = 0; unmap: - kunmap(page); + kunmap_thread(page); free_page: __free_page(page);
--
2.28.0.rc0.12.gb6a658bd00c9