forked from Minki/linux
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
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#ifndef _VXFS_KCOMPAT_H
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#define _VXFS_KCOMPAT_H
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#include <linux/version.h>
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
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#include <linux/blkdev.h>
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typedef long sector_t;
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/* From include/linux/fs.h (Linux 2.5.2-pre3) */
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static inline struct buffer_head * sb_bread(struct super_block *sb, int block)
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{
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return bread(sb->s_dev, block, sb->s_blocksize);
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}
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/* Dito. */
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static inline void map_bh(struct buffer_head *bh, struct super_block *sb, int block)
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{
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bh->b_state |= 1 << BH_Mapped;
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bh->b_dev = sb->s_dev;
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bh->b_blocknr = block;
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}
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/* From fs/block_dev.c (Linux 2.5.2-pre2) */
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static inline int sb_set_blocksize(struct super_block *sb, int size)
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{
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int bits;
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if (set_blocksize(sb->s_dev, size) < 0)
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return 0;
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sb->s_blocksize = size;
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for (bits = 9, size >>= 9; size >>= 1; bits++)
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;
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sb->s_blocksize_bits = bits;
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return sb->s_blocksize;
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}
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/* Dito. */
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static inline int sb_min_blocksize(struct super_block *sb, int size)
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{
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int minsize = get_hardsect_size(sb->s_dev);
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if (size < minsize)
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size = minsize;
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return sb_set_blocksize(sb, size);
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}
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#endif /* Kernel 2.4 */
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#endif /* _VXFS_KCOMPAT_H */
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