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mm: minor cleanup of iov_iter_single_seg_count()

The function does not modify iov_iter which 'i' points to.

Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Maxim Patlasov 12 years ago
parent
85f40aec88
commit
d28574e043
2 changed files with 2 additions and 2 deletions
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  1. 1 1
      include/linux/fs.h
  2. 1 1
      mm/filemap.c

+ 1 - 1
include/linux/fs.h
View File 

@@ -301,7 +301,7 @@ size_t iov_iter_copy_from_user(struct page *page,
 
 		struct iov_iter *i, unsigned long offset, size_t bytes);
 
 void iov_iter_advance(struct iov_iter *i, size_t bytes);
 
 int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
 
-size_t iov_iter_single_seg_count(struct iov_iter *i);
 
+size_t iov_iter_single_seg_count(const struct iov_iter *i);
 
 
 static inline void iov_iter_init(struct iov_iter *i,
 
 			const struct iovec *iov, unsigned long nr_segs,

+ 1 - 1
mm/filemap.c
View File 

@@ -2056,7 +2056,7 @@ EXPORT_SYMBOL(iov_iter_fault_in_readable);
 
 /*
 
  * Return the count of just the current iov_iter segment.
 
  */
 
-size_t iov_iter_single_seg_count(struct iov_iter *i)
 
+size_t iov_iter_single_seg_count(const struct iov_iter *i)
 
 {
 
 	const struct iovec *iov = i->iov;
 
 	if (i->nr_segs == 1)