vfs: move __sb_{start,end}_write* to fs.h
Now that we've straightened out the callers, move these three functions to fs.h since they're fairly trivial. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz>
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fs/super.c
30
fs/super.c
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@ -1631,36 +1631,6 @@ int super_setup_bdi(struct super_block *sb)
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}
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EXPORT_SYMBOL(super_setup_bdi);
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/*
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* This is an internal function, please use sb_end_{write,pagefault,intwrite}
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* instead.
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*/
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void __sb_end_write(struct super_block *sb, int level)
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{
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percpu_up_read(sb->s_writers.rw_sem + level-1);
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}
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EXPORT_SYMBOL(__sb_end_write);
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/*
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* This is an internal function, please use sb_start_{write,pagefault,intwrite}
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* instead.
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*/
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void __sb_start_write(struct super_block *sb, int level)
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{
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percpu_down_read(sb->s_writers.rw_sem + level - 1);
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}
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EXPORT_SYMBOL(__sb_start_write);
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/*
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* This is an internal function, please use sb_start_{write,pagefault,intwrite}
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* instead.
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*/
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bool __sb_start_write_trylock(struct super_block *sb, int level)
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{
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return percpu_down_read_trylock(sb->s_writers.rw_sem + level - 1);
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}
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EXPORT_SYMBOL_GPL(__sb_start_write_trylock);
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/**
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* sb_wait_write - wait until all writers to given file system finish
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* @sb: the super for which we wait
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@ -1580,9 +1580,24 @@ extern struct timespec64 current_time(struct inode *inode);
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* Snapshotting support.
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*/
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void __sb_end_write(struct super_block *sb, int level);
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void __sb_start_write(struct super_block *sb, int level);
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bool __sb_start_write_trylock(struct super_block *sb, int level);
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/*
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* These are internal functions, please use sb_start_{write,pagefault,intwrite}
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* instead.
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*/
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static inline void __sb_end_write(struct super_block *sb, int level)
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{
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percpu_up_read(sb->s_writers.rw_sem + level-1);
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}
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static inline void __sb_start_write(struct super_block *sb, int level)
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{
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percpu_down_read(sb->s_writers.rw_sem + level - 1);
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}
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static inline bool __sb_start_write_trylock(struct super_block *sb, int level)
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{
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return percpu_down_read_trylock(sb->s_writers.rw_sem + level - 1);
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}
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#define __sb_writers_acquired(sb, lev) \
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percpu_rwsem_acquire(&(sb)->s_writers.rw_sem[(lev)-1], 1, _THIS_IP_)
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