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authorDave Chinner <dchinner@redhat.com>2014-06-25 06:57:36 +0200
committerDave Chinner <david@fromorbit.com>2014-06-25 06:57:36 +0200
commit84be0ffc9043f7c56044294eb775a2200452c76d (patch)
treef92ae3d2a8ddfc0c98c76c434432f42b7c14ac0d /fs/xfs/xfs_bit.h
parentxfs: create libxfs infrastructure (diff)
downloadlinux-84be0ffc9043f7c56044294eb775a2200452c76d.tar.xz
linux-84be0ffc9043f7c56044294eb775a2200452c76d.zip
libxfs: move header files
Move all the header files that are shared with userspace into libxfs. This is done as one big chunk simpy to get it done quickly. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_bit.h')
-rw-r--r--fs/xfs/xfs_bit.h87
1 files changed, 0 insertions, 87 deletions
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h
deleted file mode 100644
index e1649c0d3e02..000000000000
--- a/fs/xfs/xfs_bit.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef __XFS_BIT_H__
-#define __XFS_BIT_H__
-
-/*
- * XFS bit manipulation routines.
- */
-
-/*
- * masks with n high/low bits set, 64-bit values
- */
-static inline __uint64_t xfs_mask64hi(int n)
-{
- return (__uint64_t)-1 << (64 - (n));
-}
-static inline __uint32_t xfs_mask32lo(int n)
-{
- return ((__uint32_t)1 << (n)) - 1;
-}
-static inline __uint64_t xfs_mask64lo(int n)
-{
- return ((__uint64_t)1 << (n)) - 1;
-}
-
-/* Get high bit set out of 32-bit argument, -1 if none set */
-static inline int xfs_highbit32(__uint32_t v)
-{
- return fls(v) - 1;
-}
-
-/* Get high bit set out of 64-bit argument, -1 if none set */
-static inline int xfs_highbit64(__uint64_t v)
-{
- return fls64(v) - 1;
-}
-
-/* Get low bit set out of 32-bit argument, -1 if none set */
-static inline int xfs_lowbit32(__uint32_t v)
-{
- return ffs(v) - 1;
-}
-
-/* Get low bit set out of 64-bit argument, -1 if none set */
-static inline int xfs_lowbit64(__uint64_t v)
-{
- __uint32_t w = (__uint32_t)v;
- int n = 0;
-
- if (w) { /* lower bits */
- n = ffs(w);
- } else { /* upper bits */
- w = (__uint32_t)(v >> 32);
- if (w) {
- n = ffs(w);
- if (n)
- n += 32;
- }
- }
- return n - 1;
-}
-
-/* Return whether bitmap is empty (1 == empty) */
-extern int xfs_bitmap_empty(uint *map, uint size);
-
-/* Count continuous one bits in map starting with start_bit */
-extern int xfs_contig_bits(uint *map, uint size, uint start_bit);
-
-/* Find next set bit in map */
-extern int xfs_next_bit(uint *map, uint size, uint start_bit);
-
-#endif /* __XFS_BIT_H__ */