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mm: add file_fdatawait_range and file_write_and_wait
Necessary now for gfs2_fsync and sync_file_range, but there will eventually be other callers. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jeff Layton <jlayton@redhat.com>
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2 changed files with 33 additions and 1 deletions
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@ -2544,6 +2544,8 @@ extern int filemap_fdatawait_range(struct address_space *, loff_t lstart,
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loff_t lend);
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extern bool filemap_range_has_page(struct address_space *, loff_t lstart,
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loff_t lend);
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extern int __must_check file_fdatawait_range(struct file *file, loff_t lstart,
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loff_t lend);
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extern int filemap_write_and_wait(struct address_space *mapping);
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extern int filemap_write_and_wait_range(struct address_space *mapping,
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loff_t lstart, loff_t lend);
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@ -2552,12 +2554,19 @@ extern int __filemap_fdatawrite_range(struct address_space *mapping,
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extern int filemap_fdatawrite_range(struct address_space *mapping,
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loff_t start, loff_t end);
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extern int filemap_check_errors(struct address_space *mapping);
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extern void __filemap_set_wb_err(struct address_space *mapping, int err);
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extern int __must_check file_fdatawait_range(struct file *file, loff_t lstart,
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loff_t lend);
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extern int __must_check file_check_and_advance_wb_err(struct file *file);
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extern int __must_check file_write_and_wait_range(struct file *file,
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loff_t start, loff_t end);
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static inline int file_write_and_wait(struct file *file)
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{
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return file_write_and_wait_range(file, 0, LLONG_MAX);
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}
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/**
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* filemap_set_wb_err - set a writeback error on an address_space
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* @mapping: mapping in which to set writeback error
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