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| author | Jens Axboe <jaxboe@fusionio.com> | 2010-06-03 14:54:39 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-06-03 14:54:39 +0200 |
| commit | ff9da691c0498ff81fdd014e7a0731dab2337dac (patch) | |
| tree | 429dc9ea36c9927954ed3a32f03d28730e693c8b /include/linux/pipe_fs_i.h | |
| parent | 419f8367ea37e5adc5d95479e8fd5554b92b49fe (diff) | |
| download | lwn-ff9da691c0498ff81fdd014e7a0731dab2337dac.tar.gz lwn-ff9da691c0498ff81fdd014e7a0731dab2337dac.zip | |
pipe: change /proc/sys/fs/pipe-max-pages to byte sized interface
This changes the interface to be based on bytes instead. The API
matches that of F_SETPIPE_SZ in that it rounds up the passed in
size so that the resulting page array is a power-of-2 in size.
The proc file is renamed to /proc/sys/fs/pipe-max-size to
reflect this change.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'include/linux/pipe_fs_i.h')
| -rw-r--r-- | include/linux/pipe_fs_i.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 16de3933c45e..445796945ac9 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -139,7 +139,9 @@ void pipe_lock(struct pipe_inode_info *); void pipe_unlock(struct pipe_inode_info *); void pipe_double_lock(struct pipe_inode_info *, struct pipe_inode_info *); -extern unsigned int pipe_max_pages; +extern unsigned int pipe_max_size, pipe_min_size; +int pipe_proc_fn(struct ctl_table *, int, void __user *, size_t *, loff_t *); + /* Drop the inode semaphore and wait for a pipe event, atomically */ void pipe_wait(struct pipe_inode_info *pipe); |