diff options
| author | Matt Macy <mmacy@FreeBSD.org> | 2018-05-09 18:47:24 +0000 |
|---|---|---|
| committer | Matt Macy <mmacy@FreeBSD.org> | 2018-05-09 18:47:24 +0000 |
| commit | cbd92ce62e92bd17871c9668c2c2bebac3e2ac2e (patch) | |
| tree | 40c405d5c0a6545e7dfd7beb64dc7e5076f7b644 /sys/dev/filemon/filemon.c | |
| parent | 0272270a8d6fe4e6edb92de3e1711442e5d15766 (diff) | |
| download | src-cbd92ce62e92bd17871c9668c2c2bebac3e2ac2e.tar.gz src-cbd92ce62e92bd17871c9668c2c2bebac3e2ac2e.zip | |
Eliminate the overhead of gratuitous repeated reinitialization of cap_rights
- Add macros to allow preinitialization of cap_rights_t.
- Convert most commonly used code paths to use preinitialized cap_rights_t.
A 3.6% speedup in fstat was measured with this change.
Reported by: mjg
Reviewed by: oshogbo
Approved by: sbruno
MFC after: 1 month
Notes
Notes:
svn path=/head/; revision=333425
Diffstat (limited to 'sys/dev/filemon/filemon.c')
| -rw-r--r-- | sys/dev/filemon/filemon.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sys/dev/filemon/filemon.c b/sys/dev/filemon/filemon.c index 38c4eb3f4a56..80c3c28ff51a 100644 --- a/sys/dev/filemon/filemon.c +++ b/sys/dev/filemon/filemon.c @@ -361,7 +361,6 @@ filemon_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag __unused, int error = 0; struct filemon *filemon; struct proc *p; - cap_rights_t rights; if ((error = devfs_get_cdevpriv((void **) &filemon)) != 0) return (error); @@ -377,7 +376,7 @@ filemon_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag __unused, } error = fget_write(td, *(int *)data, - cap_rights_init(&rights, CAP_PWRITE), + &cap_pwrite_rights, &filemon->fp); if (error == 0) /* Write the file header. */ |