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;