Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-serial.git

[linux-2.6] / fs / nfsd / vfs.c

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index e3e9d217236e46e65d60a8a9d0c722451f752e4c..4f2cd3d2756665a1f600f8bcac96b4f2756b1ded 100644 (file)
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -45,11 +45,10 @@
 #endif /* CONFIG_NFSD_V3 */
 #include <linux/nfsd/nfsfh.h>
 #include <linux/quotaops.h>
-#include <linux/dnotify.h>
-#ifdef CONFIG_NFSD_V4
+#include <linux/fsnotify.h>
 #include <linux/posix_acl.h>
 #include <linux/posix_acl_xattr.h>
-#include <linux/xattr_acl.h>
+#ifdef CONFIG_NFSD_V4
 #include <linux/xattr.h>
 #include <linux/nfs4.h>
 #include <linux/nfs4_acl.h>
@@ -424,13 +423,13 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
                goto out_nfserr;
 
        if (pacl) {
-               error = set_nfsv4_acl_one(dentry, pacl, XATTR_NAME_ACL_ACCESS);
+               error = set_nfsv4_acl_one(dentry, pacl, POSIX_ACL_XATTR_ACCESS);
                if (error < 0)
                        goto out_nfserr;
        }
 
        if (dpacl) {
-               error = set_nfsv4_acl_one(dentry, dpacl, XATTR_NAME_ACL_DEFAULT);
+               error = set_nfsv4_acl_one(dentry, dpacl, POSIX_ACL_XATTR_DEFAULT);
                if (error < 0)
                        goto out_nfserr;
        }
@@ -497,7 +496,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
        struct posix_acl *pacl = NULL, *dpacl = NULL;
        unsigned int flags = 0;
 
-       pacl = _get_posix_acl(dentry, XATTR_NAME_ACL_ACCESS);
+       pacl = _get_posix_acl(dentry, POSIX_ACL_XATTR_ACCESS);
        if (IS_ERR(pacl) && PTR_ERR(pacl) == -ENODATA)
                pacl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
        if (IS_ERR(pacl)) {
@@ -507,7 +506,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
        }
 
        if (S_ISDIR(inode->i_mode)) {
-               dpacl = _get_posix_acl(dentry, XATTR_NAME_ACL_DEFAULT);
+               dpacl = _get_posix_acl(dentry, POSIX_ACL_XATTR_DEFAULT);
                if (IS_ERR(dpacl) && PTR_ERR(dpacl) == -ENODATA)
                        dpacl = NULL;
                else if (IS_ERR(dpacl)) {
@@ -734,7 +733,7 @@ nfsd_sync(struct file *filp)
        up(&inode->i_sem);
 }
 
-static void
+void
 nfsd_sync_dir(struct dentry *dp)
 {
        nfsd_dosync(NULL, dp, dp->d_inode->i_fop);
@@ -861,7 +860,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
                nfsdstats.io_read += err;
                *count = err;
                err = 0;
-               dnotify_parent(file->f_dentry, DN_ACCESS);
+               fsnotify_access(file->f_dentry);
        } else 
                err = nfserrno(err);
 out:
@@ -917,7 +916,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
        set_fs(oldfs);
        if (err >= 0) {
                nfsdstats.io_write += cnt;
-               dnotify_parent(file->f_dentry, DN_MODIFY);
+               fsnotify_modify(file->f_dentry);
        }
 
        /* clear setuid/setgid flag after write */
@@ -1857,3 +1856,107 @@ nfsd_racache_init(int cache_size)
        nfsdstats.ra_size = cache_size;
        return 0;
 }
+
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+struct posix_acl *
+nfsd_get_posix_acl(struct svc_fh *fhp, int type)
+{
+       struct inode *inode = fhp->fh_dentry->d_inode;
+       char *name;
+       void *value = NULL;
+       ssize_t size;
+       struct posix_acl *acl;
+
+       if (!IS_POSIXACL(inode) || !inode->i_op || !inode->i_op->getxattr)
+               return ERR_PTR(-EOPNOTSUPP);
+       switch(type) {
+               case ACL_TYPE_ACCESS:
+                       name = POSIX_ACL_XATTR_ACCESS;
+                       break;
+               case ACL_TYPE_DEFAULT:
+                       name = POSIX_ACL_XATTR_DEFAULT;
+                       break;
+               default:
+                       return ERR_PTR(-EOPNOTSUPP);
+       }
+
+       size = inode->i_op->getxattr(fhp->fh_dentry, name, NULL, 0);
+
+       if (size < 0) {
+               acl = ERR_PTR(size);
+               goto getout;
+       } else if (size > 0) {
+               value = kmalloc(size, GFP_KERNEL);
+               if (!value) {
+                       acl = ERR_PTR(-ENOMEM);
+                       goto getout;
+               }
+               size = inode->i_op->getxattr(fhp->fh_dentry, name, value, size);
+               if (size < 0) {
+                       acl = ERR_PTR(size);
+                       goto getout;
+               }
+       }
+       acl = posix_acl_from_xattr(value, size);
+
+getout:
+       kfree(value);
+       return acl;
+}
+
+int
+nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
+{
+       struct inode *inode = fhp->fh_dentry->d_inode;
+       char *name;
+       void *value = NULL;
+       size_t size;
+       int error;
+
+       if (!IS_POSIXACL(inode) || !inode->i_op ||
+           !inode->i_op->setxattr || !inode->i_op->removexattr)
+               return -EOPNOTSUPP;
+       switch(type) {
+               case ACL_TYPE_ACCESS:
+                       name = POSIX_ACL_XATTR_ACCESS;
+                       break;
+               case ACL_TYPE_DEFAULT:
+                       name = POSIX_ACL_XATTR_DEFAULT;
+                       break;
+               default:
+                       return -EOPNOTSUPP;
+       }
+
+       if (acl && acl->a_count) {
+               size = posix_acl_xattr_size(acl->a_count);
+               value = kmalloc(size, GFP_KERNEL);
+               if (!value)
+                       return -ENOMEM;
+               size = posix_acl_to_xattr(acl, value, size);
+               if (size < 0) {
+                       error = size;
+                       goto getout;
+               }
+       } else
+               size = 0;
+
+       if (!fhp->fh_locked)
+               fh_lock(fhp);  /* unlocking is done automatically */
+       if (size)
+               error = inode->i_op->setxattr(fhp->fh_dentry, name,
+                                             value, size, 0);
+       else {
+               if (!S_ISDIR(inode->i_mode) && type == ACL_TYPE_DEFAULT)
+                       error = 0;
+               else {
+                       error = inode->i_op->removexattr(fhp->fh_dentry, name);
+                       if (error == -ENODATA)
+                               error = 0;
+               }
+       }
+
+getout:
+       kfree(value);
+       return error;
+}
+#endif  /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */