diff options
| author |   Alexey Dobriyan <adobriyan@gmail.com> | 2018-02-06 15:37:31 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-06 18:32:43 -0800 |
| commit | 93ad5bc6d4addb74e30d421cd3ba5249c961fb3e (patch) | |
| tree | 6c739b20c4d25cab23c2bd0e008c8ded561f86c5 /fs/proc/internal.h | |
| parent | proc: spread likely/unlikely a bit (diff) | |
| download | linux-dev-93ad5bc6d4addb74e30d421cd3ba5249c961fb3e.tar.xz linux-dev-93ad5bc6d4addb74e30d421cd3ba5249c961fb3e.zip | |
proc: rearrange args
Rearrange args for smaller code.
lookup revolves around memcmp() which gets len 3rd arg, so propagate
length as 3rd arg.
readdir and lookup add additional arg to VFS ->readdir and ->lookup, so
better add it to the end.
Space savings on x86_64:
add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-18 (-18)
Function old new delta
proc_readdir 22 13 -9
proc_lookup 18 9 -9
proc_match() is smaller if not inlined, I promise!
Link: http://lkml.kernel.org/r/20180104175958.GB5204@avx2
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 'fs/proc/internal.h')
| -rw-r--r-- | fs/proc/internal.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 5ba317874f0d..d697c8ab0a14 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -153,10 +153,9 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i * generic.c */ extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int); -extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *, - struct dentry *); +struct dentry *proc_lookup_de(struct inode *, struct dentry *, struct proc_dir_entry *); extern int proc_readdir(struct file *, struct dir_context *); -extern int proc_readdir_de(struct proc_dir_entry *, struct file *, struct dir_context *); +int proc_readdir_de(struct file *, struct dir_context *, struct proc_dir_entry *); static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde) { |