diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/freevxfs/vxfs_kcompat.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'fs/freevxfs/vxfs_kcompat.h')
-rw-r--r-- | fs/freevxfs/vxfs_kcompat.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/fs/freevxfs/vxfs_kcompat.h b/fs/freevxfs/vxfs_kcompat.h new file mode 100644 index 000000000000..342a4cc860f4 --- /dev/null +++ b/fs/freevxfs/vxfs_kcompat.h | |||
@@ -0,0 +1,49 @@ | |||
1 | #ifndef _VXFS_KCOMPAT_H | ||
2 | #define _VXFS_KCOMPAT_H | ||
3 | |||
4 | #include <linux/version.h> | ||
5 | |||
6 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) | ||
7 | |||
8 | #include <linux/blkdev.h> | ||
9 | |||
10 | typedef long sector_t; | ||
11 | |||
12 | /* From include/linux/fs.h (Linux 2.5.2-pre3) */ | ||
13 | static inline struct buffer_head * sb_bread(struct super_block *sb, int block) | ||
14 | { | ||
15 | return bread(sb->s_dev, block, sb->s_blocksize); | ||
16 | } | ||
17 | |||
18 | /* Dito. */ | ||
19 | static inline void map_bh(struct buffer_head *bh, struct super_block *sb, int block) | ||
20 | { | ||
21 | bh->b_state |= 1 << BH_Mapped; | ||
22 | bh->b_dev = sb->s_dev; | ||
23 | bh->b_blocknr = block; | ||
24 | } | ||
25 | |||
26 | /* From fs/block_dev.c (Linux 2.5.2-pre2) */ | ||
27 | static inline int sb_set_blocksize(struct super_block *sb, int size) | ||
28 | { | ||
29 | int bits; | ||
30 | if (set_blocksize(sb->s_dev, size) < 0) | ||
31 | return 0; | ||
32 | sb->s_blocksize = size; | ||
33 | for (bits = 9, size >>= 9; size >>= 1; bits++) | ||
34 | ; | ||
35 | sb->s_blocksize_bits = bits; | ||
36 | return sb->s_blocksize; | ||
37 | } | ||
38 | |||
39 | /* Dito. */ | ||
40 | static inline int sb_min_blocksize(struct super_block *sb, int size) | ||
41 | { | ||
42 | int minsize = get_hardsect_size(sb->s_dev); | ||
43 | if (size < minsize) | ||
44 | size = minsize; | ||
45 | return sb_set_blocksize(sb, size); | ||
46 | } | ||
47 | |||
48 | #endif /* Kernel 2.4 */ | ||
49 | #endif /* _VXFS_KCOMPAT_H */ | ||