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    Subject[PATCH RFC PKS/PMEM 38/58] fs/isofs: Utilize new kmap_thread()
    Date
    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/isofs/compress.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
    index bc12ac7e2312..ddd3fd99d2e1 100644
    --- a/fs/isofs/compress.c
    +++ b/fs/isofs/compress.c
    @@ -344,7 +344,7 @@ static int zisofs_readpage(struct file *file, struct page *page)
    pages[i] = grab_cache_page_nowait(mapping, index);
    if (pages[i]) {
    ClearPageError(pages[i]);
    - kmap(pages[i]);
    + kmap_thread(pages[i]);
    }
    }

    @@ -356,7 +356,7 @@ static int zisofs_readpage(struct file *file, struct page *page)
    flush_dcache_page(pages[i]);
    if (i == full_page && err)
    SetPageError(pages[i]);
    - kunmap(pages[i]);
    + kunmap_thread(pages[i]);
    unlock_page(pages[i]);
    if (i != full_page)
    put_page(pages[i]);
    --
    2.28.0.rc0.12.gb6a658bd00c9
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