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authorkib <kib@FreeBSD.org>2012-10-22 17:50:54 +0000
committerkib <kib@FreeBSD.org>2012-10-22 17:50:54 +0000
commit560aa751e0f5cfef868bdf3fab01cdbc5169ef82 (patch)
tree6e9ef0a47c5e91d26227820c50c9767e84550821 /sys/kern/vfs_mountroot.c
parentca71b68ea40c83f641d6485e027368568f244197 (diff)
downloadFreeBSD-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/vfs_mountroot.c')
-rw-r--r--sys/kern/vfs_mountroot.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c
index 62a49ae..83948f2 100644
--- a/sys/kern/vfs_mountroot.c
+++ b/sys/kern/vfs_mountroot.c
@@ -872,16 +872,14 @@ vfs_mountroot_readconf(struct thread *td, struct sbuf *sb)
struct nameidata nd;
off_t ofs;
ssize_t resid;
- int error, flags, len, vfslocked;
+ int error, flags, len;
- NDINIT(&nd, LOOKUP, FOLLOW | MPSAFE, UIO_SYSSPACE,
- "/.mount.conf", td);
+ NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, "/.mount.conf", td);
flags = FREAD;
error = vn_open(&nd, &flags, 0, NULL);
if (error)
return (error);
- vfslocked = NDHASGIANT(&nd);
NDFREE(&nd, NDF_ONLY_PNBUF);
ofs = 0;
len = sizeof(buf) - 1;
@@ -900,7 +898,6 @@ vfs_mountroot_readconf(struct thread *td, struct sbuf *sb)
VOP_UNLOCK(nd.ni_vp, 0);
vn_close(nd.ni_vp, FREAD, td->td_ucred, td);
- VFS_UNLOCK_GIANT(vfslocked);
return (error);
}
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