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| author | Chris Mason <chris.mason@oracle.com> | 2007-10-19 17:23:09 +0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 19:03:57 +0400 |
| commit | 59d169e2b3d69ba0beca0fa0936789080c8d61a9 (patch) | |
| tree | 614d27fbac77490571cc8f24f399a6c6009b30c6 /fs/btrfs/extent_map.c | |
| parent | b4a2a0edfda5a721bb4c5fa0068d2ad7ea67f98b (diff) | |
| download | linux-59d169e2b3d69ba0beca0fa0936789080c8d61a9.tar.xz | |
Btrfs: Fix read/write_extent_buffer to use KM_USER1 instead of KM_USER0
This avoids recursive use of KM_USER0 during btrfs_file_write
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index c0f834563ced..3c81f5eab155 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -2378,9 +2378,9 @@ void read_extent_buffer(struct extent_buffer *eb, void *dstv, WARN_ON(!PageUptodate(page)); cur = min(len, (PAGE_CACHE_SIZE - offset)); - kaddr = kmap_atomic(page, KM_USER0); + kaddr = kmap_atomic(page, KM_USER1); memcpy(dst, kaddr + offset, cur); - kunmap_atomic(kaddr, KM_USER0); + kunmap_atomic(kaddr, KM_USER1); dst += cur; len -= cur; @@ -2523,9 +2523,9 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv, WARN_ON(!PageUptodate(page)); cur = min(len, PAGE_CACHE_SIZE - offset); - kaddr = kmap_atomic(page, KM_USER0); + kaddr = kmap_atomic(page, KM_USER1); memcpy(kaddr + offset, src, cur); - kunmap_atomic(kaddr, KM_USER0); + kunmap_atomic(kaddr, KM_USER1); src += cur; len -= cur; |