From: Chris Mason Date: Fri, 19 Oct 2007 14:39:41 +0000 (-0400) Subject: Btrfs: Avoid recursive KM_USER1 mappings in copy_extent_buffer X-Git-Tag: v2.6.29-rc1~27^2~9^2~55^2~56^2~30^2~442 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ff190c0c004d8e51195c7bcf5a8490aeefccbce0;p=karo-tx-linux.git Btrfs: Avoid recursive KM_USER1 mappings in copy_extent_buffer Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index caaf0bf0e059..a61379230dd2 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -2586,9 +2586,9 @@ void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src, cur = min(len, (unsigned long)(PAGE_CACHE_SIZE - offset)); - kaddr = kmap_atomic(page, KM_USER1); + kaddr = kmap_atomic(page, KM_USER0); read_extent_buffer(src, kaddr + offset, src_offset, cur); - kunmap_atomic(kaddr, KM_USER1); + kunmap_atomic(kaddr, KM_USER0); src_offset += cur; len -= cur;