[PATCH RFC PKS/PMEM 27/58] fs/ubifs: Utilize new kmap_thread()
From: ira.weiny@intel.com
Date: 2020-10-09 20:04:44
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, ubi file system (ubifs) · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Richard Weinberger
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: Richard Weinberger <richard@nod.at> Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- fs/ubifs/file.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index b77d1637bbbc..a3537447a885 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c@@ -111,7 +111,7 @@ static int do_readpage(struct page *page) ubifs_assert(c, !PageChecked(page)); ubifs_assert(c, !PagePrivate(page)); - addr = kmap(page); + addr = kmap_thread(page); block = page->index << UBIFS_BLOCKS_PER_PAGE_SHIFT; beyond = (i_size + UBIFS_BLOCK_SIZE - 1) >> UBIFS_BLOCK_SHIFT;
@@ -174,7 +174,7 @@ static int do_readpage(struct page *page) SetPageUptodate(page); ClearPageError(page); flush_dcache_page(page); - kunmap(page); + kunmap_thread(page); return 0; error:
@@ -182,7 +182,7 @@ static int do_readpage(struct page *page) ClearPageUptodate(page); SetPageError(page); flush_dcache_page(page); - kunmap(page); + kunmap_thread(page); return err; }
@@ -616,7 +616,7 @@ static int populate_page(struct ubifs_info *c, struct page *page, dbg_gen("ino %lu, pg %lu, i_size %lld, flags %#lx", inode->i_ino, page->index, i_size, page->flags); - addr = zaddr = kmap(page); + addr = zaddr = kmap_thread(page); end_index = (i_size - 1) >> PAGE_SHIFT; if (!i_size || page->index > end_index) {
@@ -692,7 +692,7 @@ static int populate_page(struct ubifs_info *c, struct page *page, SetPageUptodate(page); ClearPageError(page); flush_dcache_page(page); - kunmap(page); + kunmap_thread(page); *n = nn; return 0;
@@ -700,7 +700,7 @@ static int populate_page(struct ubifs_info *c, struct page *page, ClearPageUptodate(page); SetPageError(page); flush_dcache_page(page); - kunmap(page); + kunmap_thread(page); ubifs_err(c, "bad data node (block %u, inode %lu)", page_block, inode->i_ino); return -EINVAL;
@@ -918,7 +918,7 @@ static int do_writepage(struct page *page, int len) /* Update radix tree tags */ set_page_writeback(page); - addr = kmap(page); + addr = kmap_thread(page); block = page->index << UBIFS_BLOCKS_PER_PAGE_SHIFT; i = 0; while (len) {
@@ -950,7 +950,7 @@ static int do_writepage(struct page *page, int len) ClearPagePrivate(page); ClearPageChecked(page); - kunmap(page); + kunmap_thread(page); unlock_page(page); end_page_writeback(page); return err;
--
2.28.0.rc0.12.gb6a658bd00c9