diff options
Diffstat (limited to 'fs/pipe.c')
-rw-r--r-- | fs/pipe.c | 24 |
1 files changed, 12 insertions, 12 deletions
@@ -1008,6 +1008,18 @@ const struct file_operations pipefifo_fops = { }; /* + * Currently we rely on the pipe array holding a power-of-2 number + * of pages. + */ +static inline unsigned int round_pipe_size(unsigned int size) +{ + unsigned long nr_pages; + + nr_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; + return roundup_pow_of_two(nr_pages) << PAGE_SHIFT; +} + +/* * Allocate a new array of pipe buffers and copy the info over. Returns the * pipe size if successful, or return -ERROR on error. */ @@ -1059,18 +1071,6 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long nr_pages) } /* - * Currently we rely on the pipe array holding a power-of-2 number - * of pages. - */ -static inline unsigned int round_pipe_size(unsigned int size) -{ - unsigned long nr_pages; - - nr_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; - return roundup_pow_of_two(nr_pages) << PAGE_SHIFT; -} - -/* * This should work even if CONFIG_PROC_FS isn't set, as proc_dointvec_minmax * will return an error. */ |