diff options
| 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/compat/linux | |
| 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/compat/linux')
| -rw-r--r-- | sys/compat/linux/linux_file.c | 5 | ||||
| -rw-r--r-- | sys/compat/linux/linux_misc.c | 11 |
2 files changed, 4 insertions, 12 deletions
diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c index 8003ade..df13277 100644 --- a/sys/compat/linux/linux_file.c +++ b/sys/compat/linux/linux_file.c @@ -337,7 +337,7 @@ getdents_common(struct thread *td, struct linux_getdents64_args *args, struct l_dirent64 *linux_dirent64; int buflen, error, eofflag, nbytes, justone; u_long *cookies = NULL, *cookiep; - int ncookies, vfslocked; + int ncookies; nbytes = args->count; if (nbytes == 1) { @@ -359,9 +359,7 @@ getdents_common(struct thread *td, struct linux_getdents64_args *args, off = foffset_lock(fp, 0); vp = fp->f_vnode; - vfslocked = VFS_LOCK_GIANT(vp->v_mount); if (vp->v_type != VDIR) { - VFS_UNLOCK_GIANT(vfslocked); foffset_unlock(fp, off, 0); fdrop(fp, td); return (EINVAL); @@ -521,7 +519,6 @@ out: free(cookies, M_TEMP); VOP_UNLOCK(vp, 0); - VFS_UNLOCK_GIANT(vfslocked); foffset_unlock(fp, off, 0); fdrop(fp, td); free(buf, M_TEMP); diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index 50e2175..6da3b19 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -247,7 +247,7 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args) char *library; ssize_t aresid; int error; - int locked, vfslocked; + int locked; LCONVPATHEXIST(td, args->library, &library); @@ -257,11 +257,10 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args) #endif a_out = NULL; - vfslocked = 0; locked = 0; vp = NULL; - NDINIT(&ni, LOOKUP, ISOPEN | FOLLOW | LOCKLEAF | MPSAFE | AUDITVNODE1, + NDINIT(&ni, LOOKUP, ISOPEN | FOLLOW | LOCKLEAF | AUDITVNODE1, UIO_SYSSPACE, library, td); error = namei(&ni); LFREEPATH(library); @@ -269,7 +268,6 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args) goto cleanup; vp = ni.ni_vp; - vfslocked = NDHASGIANT(&ni); NDFREE(&ni, NDF_ONLY_PNBUF); /* @@ -393,7 +391,6 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args) */ locked = 0; VOP_UNLOCK(vp, 0); - VFS_UNLOCK_GIANT(vfslocked); /* * Check if file_offset page aligned. Currently we cannot handle @@ -463,10 +460,8 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args) cleanup: /* Unlock vnode if needed */ - if (locked) { + if (locked) VOP_UNLOCK(vp, 0); - VFS_UNLOCK_GIANT(vfslocked); - } /* Release the temporary mapping. */ if (a_out) |
