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| author | kib <kib@FreeBSD.org> | 2012-10-22 17:50:54 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2012-10-22 17:50:54 +0000 |
| commit | 560aa751e0f5cfef868bdf3fab01cdbc5169ef82 (patch) | |
| tree | 6e9ef0a47c5e91d26227820c50c9767e84550821 /sys/kern/kern_alq.c | |
| parent | ca71b68ea40c83f641d6485e027368568f244197 (diff) | |
| download | FreeBSD-src-560aa751e0f5cfef868bdf3fab01cdbc5169ef82.zip FreeBSD-src-560aa751e0f5cfef868bdf3fab01cdbc5169ef82.tar.gz | |
Remove the support for using non-mpsafe filesystem modules.
In particular, do not lock Giant conditionally when calling into the
filesystem module, remove the VFS_LOCK_GIANT() and related
macros. Stop handling buffers belonging to non-mpsafe filesystems.
The VFS_VERSION is bumped to indicate the interface change which does
not result in the interface signatures changes.
Conducted and reviewed by: attilio
Tested by: pho
Diffstat (limited to 'sys/kern/kern_alq.c')
| -rw-r--r-- | sys/kern/kern_alq.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/sys/kern/kern_alq.c b/sys/kern/kern_alq.c index 98e6de8..893d2f8 100644 --- a/sys/kern/kern_alq.c +++ b/sys/kern/kern_alq.c @@ -313,7 +313,6 @@ alq_doio(struct alq *alq) struct iovec aiov[2]; int totlen; int iov; - int vfslocked; int wrapearly; KASSERT((HAS_PENDING_DATA(alq)), ("%s: queue empty!", __func__)); @@ -365,7 +364,6 @@ alq_doio(struct alq *alq) /* * Do all of the junk required to write now. */ - vfslocked = VFS_LOCK_GIANT(vp->v_mount); vn_start_write(vp, &mp, V_WAIT); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); /* @@ -377,7 +375,6 @@ alq_doio(struct alq *alq) VOP_WRITE(vp, &auio, IO_UNIT | IO_APPEND, alq->aq_cred); VOP_UNLOCK(vp, 0); vn_finished_write(mp); - VFS_UNLOCK_GIANT(vfslocked); ALQ_LOCK(alq); alq->aq_flags &= ~AQ_FLUSHING; @@ -438,25 +435,22 @@ alq_open_flags(struct alq **alqp, const char *file, struct ucred *cred, int cmod struct alq *alq; int oflags; int error; - int vfslocked; KASSERT((size > 0), ("%s: size <= 0", __func__)); *alqp = NULL; td = curthread; - NDINIT(&nd, LOOKUP, NOFOLLOW | MPSAFE, UIO_SYSSPACE, file, td); + NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, file, td); oflags = FWRITE | O_NOFOLLOW | O_CREAT; error = vn_open_cred(&nd, &oflags, cmode, 0, cred, NULL); if (error) return (error); - vfslocked = NDHASGIANT(&nd); NDFREE(&nd, NDF_ONLY_PNBUF); /* We just unlock so we hold a reference */ VOP_UNLOCK(nd.ni_vp, 0); - VFS_UNLOCK_GIANT(vfslocked); alq = malloc(sizeof(*alq), M_ALD, M_WAITOK|M_ZERO); alq->aq_vp = nd.ni_vp; |
