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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2011-03-24 02:42:52 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 05:46:37 +0300 |
| commit | 312ec7e50c4d3f40b3762af651d1aa79a67f556a (patch) | |
| tree | 98112d9c80aacd011e313268b5f5d8caf5b5b727 /include/linux/proc_fs.h | |
| parent | fc3d8767b2b6de955579852d7a150f1734265eaf (diff) | |
| download | linux-312ec7e50c4d3f40b3762af651d1aa79a67f556a.tar.xz | |
proc: make struct proc_dir_entry::namelen unsigned int
1. namelen is declared "unsigned short" which hints for "maybe space savings".
Indeed in 2.4 struct proc_dir_entry looked like:
struct proc_dir_entry {
unsigned short low_ino;
unsigned short namelen;
Now, low_ino is "unsigned int", all savings were gone for a long time.
"struct proc_dir_entry" is not that countless to worry about it's size,
anyway.
2. converting from unsigned short to int/unsigned int can only create
problems, we better play it safe.
Space is not really conserved, because of natural alignment for the next
field. sizeof(struct proc_dir_entry) remains the same.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/proc_fs.h')
| -rw-r--r-- | include/linux/proc_fs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 379eaed72d4b..838c1149251a 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -50,7 +50,7 @@ typedef int (write_proc_t)(struct file *file, const char __user *buffer, struct proc_dir_entry { unsigned int low_ino; - unsigned short namelen; + unsigned int namelen; const char *name; mode_t mode; nlink_t nlink; |