The patch titled
nfsd: clean up mnt_want_write calls
has been removed from the -mm tree. Its filename was
nfsd-clean-up-mnt_want_write-calls.patch
This patch was dropped because it's more controversial than was first thought, and it was sent off-list
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: nfsd: clean up mnt_want_write calls
From: Miklos Szeredi <mszeredi@xxxxxxx>
Multiple mnt_want_write() calls in the switch statement looks really
ugly.
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Neil Brown <neilb@xxxxxxx>
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nfsd/vfs.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff -puN fs/nfsd/vfs.c~nfsd-clean-up-mnt_want_write-calls fs/nfsd/vfs.c
--- a/fs/nfsd/vfs.c~nfsd-clean-up-mnt_want_write-calls
+++ a/fs/nfsd/vfs.c
@@ -1248,36 +1248,34 @@ nfsd_create(struct svc_rqst *rqstp, stru
iap->ia_mode = 0;
iap->ia_mode = (iap->ia_mode & S_IALLUGO) | type;
+ err = nfserr_inval;
+ if (!S_ISREG(type) && !S_ISDIR(type) && !special_file(type)) {
+ printk(KERN_WARNING "nfsd: bad file type %o in nfsd_create\n",
+ type);
+ goto out;
+ }
+
+ host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
+ if (host_err)
+ goto out_nfserr;
+
/*
* Get the dir op function pointer.
*/
err = 0;
switch (type) {
case S_IFREG:
- host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
- if (host_err)
- goto out_nfserr;
host_err = vfs_create(dirp, dchild, iap->ia_mode, NULL);
break;
case S_IFDIR:
- host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
- if (host_err)
- goto out_nfserr;
host_err = vfs_mkdir(dirp, dchild, iap->ia_mode);
break;
case S_IFCHR:
case S_IFBLK:
case S_IFIFO:
case S_IFSOCK:
- host_err = mnt_want_write(fhp->fh_export->ex_path.mnt);
- if (host_err)
- goto out_nfserr;
host_err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev);
break;
- default:
- printk("nfsd: bad file type %o in nfsd_create\n", type);
- host_err = -EINVAL;
- goto out_nfserr;
}
if (host_err < 0) {
mnt_drop_write(fhp->fh_export->ex_path.mnt);
@@ -1289,7 +1287,6 @@ nfsd_create(struct svc_rqst *rqstp, stru
write_inode_now(dchild->d_inode, 1);
}
-
err2 = nfsd_create_setattr(rqstp, resfhp, iap);
if (err2)
err = err2;
_
Patches currently in -mm which might be from mszeredi@xxxxxxx are
sysfs-dont-call-notify_change.patch
gfs2-dont-call-permission.patch
nfsd-clean-up-mnt_want_write-calls.patch
vfs-immutable-inode-checking-cleanup.patch
vfs-truncate-dont-check-immutable-twice.patch
vfs-create-file_truncate-helper.patch
vfs-utimes-immutable-fix.patch
vfs-utimes-cleanup.patch
vfs-dcache-cleanups.patch
vfs-fix-sys_getcwd-for-detached-mounts.patch
git-unprivileged-mounts.patch
reiserfs-dont-call-vfs_rmdir.patch
reiserfs-dont-call-notify_change.patch
hpfs-dont-call-notify_change.patch
hpfs-dont-call-permission.patch
hppfs-remove-hppfs_permission.patch
fat-dont-call-notify_change.patch
cgroup-dont-call-vfs_mkdir.patch
lockd-dont-return-eagain-for-a-permanent-error.patch
locks-add-special-return-value-for-asynchronous-locks.patch
locks-cleanup-code-duplication.patch
locks-allow-lock-to-return-file_lock_deferred.patch
fuse-prepare-lookup-for-nfs-export.patch
fuse-add-export-operations.patch
fuse-add-fuse_lookup_name-helper.patch
fuse-nfs-export-special-lookups.patch
fuse-lockd-support.patch
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