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| author | Mateusz Guzik <mjg@FreeBSD.org> | 2015-09-07 20:02:56 +0000 |
|---|---|---|
| committer | Mateusz Guzik <mjg@FreeBSD.org> | 2015-09-07 20:02:56 +0000 |
| commit | d7832811a72cb0f912ff0095f02dec0f6042c185 (patch) | |
| tree | 0a06b8a458190baeb378492413235f8a0cac26e6 /sys/kern/uipc_usrreq.c | |
| parent | 40ea8e710e6ae61c6b0f8fdf39828a527c5b9ee6 (diff) | |
| download | src-d7832811a72cb0f912ff0095f02dec0f6042c185.tar.gz src-d7832811a72cb0f912ff0095f02dec0f6042c185.zip | |
fd: make the common case in filecaps_copy work lockless
The filedesc lock is only needed if ioctls caps are present, which is a
rare situation. This is a step towards reducing the scope of the filedesc
lock.
Notes
Notes:
svn path=/head/; revision=287539
Diffstat (limited to 'sys/kern/uipc_usrreq.c')
| -rw-r--r-- | sys/kern/uipc_usrreq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c index c3a71c8fb351..efed37b8affb 100644 --- a/sys/kern/uipc_usrreq.c +++ b/sys/kern/uipc_usrreq.c @@ -1972,7 +1972,7 @@ unp_internalize(struct mbuf **controlp, struct thread *td) fdep[i] = fdev; fdep[i]->fde_file = fde->fde_file; filecaps_copy(&fde->fde_caps, - &fdep[i]->fde_caps); + &fdep[i]->fde_caps, true); unp_internalize_fp(fdep[i]->fde_file); } FILEDESC_SUNLOCK(fdesc); |