diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/dir.c | 9 | ||||
| -rw-r--r-- | fs/nfs/getroot.c | 14 | ||||
| -rw-r--r-- | fs/nfs/inode.c | 13 | ||||
| -rw-r--r-- | fs/nfs/super.c | 2 |
4 files changed, 16 insertions, 22 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index efdba2e802d..3e64b98f3a9 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -707,9 +707,7 @@ static int nfs_is_exclusive_create(struct inode *dir, struct nameidata *nd) { if (NFS_PROTO(dir)->version == 2) return 0; - if (nd == NULL || nfs_lookup_check_intent(nd, LOOKUP_CREATE) == 0) - return 0; - return (nd->intent.open.flags & O_EXCL) != 0; + return nd && nfs_lookup_check_intent(nd, LOOKUP_EXCL); } /* @@ -1009,7 +1007,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry /* Let vfs_create() deal with O_EXCL. Instantiate, but don't hash * the dentry. */ - if (nd->intent.open.flags & O_EXCL) { + if (nd->flags & LOOKUP_EXCL) { d_instantiate(dentry, NULL); goto out; } @@ -1959,6 +1957,9 @@ force_lookup: } else res = PTR_ERR(cred); out: + if (!res && (mask & MAY_EXEC) && !execute_ok(inode)) + res = -EACCES; + dfprintk(VFS, "NFS: permission(%s/%ld), mask=0x%x, res=%d\n", inode->i_sb->s_id, inode->i_ino, mask, res); return res; diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c index fae97196daa..b7c9b2df1f2 100644 --- a/fs/nfs/getroot.c +++ b/fs/nfs/getroot.c @@ -107,11 +107,10 @@ struct dentry *nfs_get_root(struct super_block *sb, struct nfs_fh *mntfh) * if the dentry tree reaches them; however if the dentry already * exists, we'll pick it up at this point and use it as the root */ - mntroot = d_alloc_anon(inode); - if (!mntroot) { - iput(inode); + mntroot = d_obtain_alias(inode); + if (IS_ERR(mntroot)) { dprintk("nfs_get_root: get root dentry failed\n"); - return ERR_PTR(-ENOMEM); + return mntroot; } security_d_instantiate(mntroot, inode); @@ -277,11 +276,10 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh) * if the dentry tree reaches them; however if the dentry already * exists, we'll pick it up at this point and use it as the root */ - mntroot = d_alloc_anon(inode); - if (!mntroot) { - iput(inode); + mntroot = d_obtain_alias(inode); + if (IS_ERR(mntroot)) { dprintk("nfs_get_root: get root dentry failed\n"); - return ERR_PTR(-ENOMEM); + return mntroot; } security_d_instantiate(mntroot, inode); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index b9195c02a86..d22eb383e1c 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -5,7 +5,7 @@ * * nfs inode and superblock handling functions * - * Modularised by Alan Cox <Alan.Cox@linux.org>, while hacking some + * Modularised by Alan Cox <alan@lxorguk.ukuu.org.uk>, while hacking some * experimental NFS changes. Modularisation taken straight from SYS5 fs. * * Change to nfs_read_super() to permit NFS mounts to multi-homed hosts. @@ -908,21 +908,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt return nfs_size_to_loff_t(fattr->size) > i_size_read(inode); } -static unsigned long nfs_attr_generation_counter; +static atomic_long_t nfs_attr_generation_counter; static unsigned long nfs_read_attr_generation_counter(void) { - smp_rmb(); - return nfs_attr_generation_counter; + return atomic_long_read(&nfs_attr_generation_counter); } unsigned long nfs_inc_attr_generation_counter(void) { - unsigned long ret; - smp_rmb(); - ret = ++nfs_attr_generation_counter; - smp_wmb(); - return ret; + return atomic_long_inc_return(&nfs_attr_generation_counter); } void nfs_fattr_init(struct nfs_fattr *fattr) diff --git a/fs/nfs/super.c b/fs/nfs/super.c index a3b0061dfd4..f48db679a1c 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -5,7 +5,7 @@ * * nfs superblock handling functions * - * Modularised by Alan Cox <Alan.Cox@linux.org>, while hacking some + * Modularised by Alan Cox <alan@lxorguk.ukuu.org.uk>, while hacking some * experimental NFS changes. Modularisation taken straight from SYS5 fs. * * Change to nfs_read_super() to permit NFS mounts to multi-homed hosts. |