mirror of https://gitee.com/openkylin/linux.git
[PATCH] CONFIG_BLOCK internal.h cleanups
- forward declare struct superblock - use inlines, not macros Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -11,6 +11,8 @@
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#include <linux/ioctl32.h>
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struct super_block;
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/*
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* block_dev.c
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*/
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@ -18,11 +20,20 @@
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extern struct super_block *blockdev_superblock;
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extern void __init bdev_cache_init(void);
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#define sb_is_blkdev_sb(sb) ((sb) == blockdev_superblock)
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#else
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static inline void bdev_cache_init(void) {}
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static inline int sb_is_blkdev_sb(struct super_block *sb)
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{
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return sb == blockdev_superblock;
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}
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#define sb_is_blkdev_sb(sb) 0
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#else
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static inline void bdev_cache_init(void)
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{
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}
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static inline int sb_is_blkdev_sb(struct super_block *sb)
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{
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return 0;
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}
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#endif
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/*
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