Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752870AbaA2Qiv (ORCPT ); Wed, 29 Jan 2014 11:38:51 -0500 Received: from mail-ea0-f170.google.com ([209.85.215.170]:65527 "EHLO mail-ea0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752382AbaA2Qit (ORCPT ); Wed, 29 Jan 2014 11:38:49 -0500 From: Ilya Dryomov To: Sage Weil Cc: Linus Torvalds , Dave Jones , Linux Kernel Mailing List , ceph-devel@vger.kernel.org, linux-fsdevel , Christoph Hellwig , Al Viro , Guangliang Zhao , Li Wang , zheng.z.yan@intel.com Subject: [PATCH v2] ceph: fix posix ACL hooks Date: Wed, 29 Jan 2014 18:37:47 +0200 Message-Id: <1391013467-7598-1-git-send-email-ilya.dryomov@inktank.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sage Weil The merge of 7221fe4c2 raced with upstream changes in the generic POSIX ACL code (2aeccbe95). Update Ceph to use the new helpers as well by dropping the now-generic functions and setting the set_acl inode op. Signed-off-by: Sage Weil --- v2: fixed the !CONFIG_CEPH_FS_POSIX_ACL case fs/ceph/acl.c | 112 +++---------------------------------------------------- fs/ceph/dir.c | 1 + fs/ceph/inode.c | 5 ++- fs/ceph/super.h | 6 +-- fs/ceph/xattr.c | 5 ++- 5 files changed, 16 insertions(+), 113 deletions(-) diff --git a/fs/ceph/acl.c b/fs/ceph/acl.c index 64fddbc1d17b..66d377a12f7c 100644 --- a/fs/ceph/acl.c +++ b/fs/ceph/acl.c @@ -107,14 +107,14 @@ struct posix_acl *ceph_get_acl(struct inode *inode, int type) return acl; } -static int ceph_set_acl(struct dentry *dentry, struct inode *inode, - struct posix_acl *acl, int type) +int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type) { int ret = 0, size = 0; const char *name = NULL; char *value = NULL; struct iattr newattrs; umode_t new_mode = inode->i_mode, old_mode = inode->i_mode; + struct dentry *dentry = d_find_alias(inode); if (acl) { ret = posix_acl_valid(acl); @@ -208,16 +208,15 @@ int ceph_init_acl(struct dentry *dentry, struct inode *inode, struct inode *dir) if (IS_POSIXACL(dir) && acl) { if (S_ISDIR(inode->i_mode)) { - ret = ceph_set_acl(dentry, inode, acl, - ACL_TYPE_DEFAULT); + ret = ceph_set_acl(inode, acl, ACL_TYPE_DEFAULT); if (ret) goto out_release; } - ret = posix_acl_create(&acl, GFP_NOFS, &inode->i_mode); + ret = __posix_acl_create(&acl, GFP_NOFS, &inode->i_mode); if (ret < 0) goto out; else if (ret > 0) - ret = ceph_set_acl(dentry, inode, acl, ACL_TYPE_ACCESS); + ret = ceph_set_acl(inode, acl, ACL_TYPE_ACCESS); else cache_no_acl(inode); } else { @@ -229,104 +228,3 @@ out_release: out: return ret; } - -int ceph_acl_chmod(struct dentry *dentry, struct inode *inode) -{ - struct posix_acl *acl; - int ret = 0; - - if (S_ISLNK(inode->i_mode)) { - ret = -EOPNOTSUPP; - goto out; - } - - if (!IS_POSIXACL(inode)) - goto out; - - acl = ceph_get_acl(inode, ACL_TYPE_ACCESS); - if (IS_ERR_OR_NULL(acl)) { - ret = PTR_ERR(acl); - goto out; - } - - ret = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode); - if (ret) - goto out; - ret = ceph_set_acl(dentry, inode, acl, ACL_TYPE_ACCESS); - posix_acl_release(acl); -out: - return ret; -} - -static int ceph_xattr_acl_get(struct dentry *dentry, const char *name, - void *value, size_t size, int type) -{ - struct posix_acl *acl; - int ret = 0; - - if (!IS_POSIXACL(dentry->d_inode)) - return -EOPNOTSUPP; - - acl = ceph_get_acl(dentry->d_inode, type); - if (IS_ERR(acl)) - return PTR_ERR(acl); - if (acl == NULL) - return -ENODATA; - - ret = posix_acl_to_xattr(&init_user_ns, acl, value, size); - posix_acl_release(acl); - - return ret; -} - -static int ceph_xattr_acl_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) -{ - int ret = 0; - struct posix_acl *acl = NULL; - - if (!inode_owner_or_capable(dentry->d_inode)) { - ret = -EPERM; - goto out; - } - - if (!IS_POSIXACL(dentry->d_inode)) { - ret = -EOPNOTSUPP; - goto out; - } - - if (value) { - acl = posix_acl_from_xattr(&init_user_ns, value, size); - if (IS_ERR(acl)) { - ret = PTR_ERR(acl); - goto out; - } - - if (acl) { - ret = posix_acl_valid(acl); - if (ret) - goto out_release; - } - } - - ret = ceph_set_acl(dentry, dentry->d_inode, acl, type); - -out_release: - posix_acl_release(acl); -out: - return ret; -} - -const struct xattr_handler ceph_xattr_acl_default_handler = { - .prefix = POSIX_ACL_XATTR_DEFAULT, - .flags = ACL_TYPE_DEFAULT, - .get = ceph_xattr_acl_get, - .set = ceph_xattr_acl_set, -}; - -const struct xattr_handler ceph_xattr_acl_access_handler = { - .prefix = POSIX_ACL_XATTR_ACCESS, - .flags = ACL_TYPE_ACCESS, - .get = ceph_xattr_acl_get, - .set = ceph_xattr_acl_set, -}; diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 619616d585b0..6da4df84ba30 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1303,6 +1303,7 @@ const struct inode_operations ceph_dir_iops = { .listxattr = ceph_listxattr, .removexattr = ceph_removexattr, .get_acl = ceph_get_acl, + .set_acl = ceph_set_acl, .mknod = ceph_mknod, .symlink = ceph_symlink, .mkdir = ceph_mkdir, diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 6fc10a7d7c59..32d519d8a2e2 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -9,6 +9,7 @@ #include #include #include +#include #include "super.h" #include "mds_client.h" @@ -96,6 +97,7 @@ const struct inode_operations ceph_file_iops = { .listxattr = ceph_listxattr, .removexattr = ceph_removexattr, .get_acl = ceph_get_acl, + .set_acl = ceph_set_acl, }; @@ -1615,6 +1617,7 @@ static const struct inode_operations ceph_symlink_iops = { .listxattr = ceph_listxattr, .removexattr = ceph_removexattr, .get_acl = ceph_get_acl, + .set_acl = ceph_set_acl, }; /* @@ -1805,7 +1808,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr) __mark_inode_dirty(inode, inode_dirty_flags); if (ia_valid & ATTR_MODE) { - err = ceph_acl_chmod(dentry, inode); + err = posix_acl_chmod(inode, attr->ia_mode); if (err) goto out_put; } diff --git a/fs/ceph/super.h b/fs/ceph/super.h index c299f7d19bf3..aa260590f615 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -718,6 +718,7 @@ extern void ceph_queue_writeback(struct inode *inode); extern int ceph_do_getattr(struct inode *inode, int mask); extern int ceph_permission(struct inode *inode, int mask); extern int ceph_setattr(struct dentry *dentry, struct iattr *attr); +extern int ceph_setattr(struct dentry *dentry, struct iattr *attr); extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); @@ -736,20 +737,19 @@ extern void __init ceph_xattr_init(void); extern void ceph_xattr_exit(void); /* acl.c */ -extern const struct xattr_handler ceph_xattr_acl_access_handler; -extern const struct xattr_handler ceph_xattr_acl_default_handler; extern const struct xattr_handler *ceph_xattr_handlers[]; #ifdef CONFIG_CEPH_FS_POSIX_ACL struct posix_acl *ceph_get_acl(struct inode *, int); +int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type); int ceph_init_acl(struct dentry *, struct inode *, struct inode *); -int ceph_acl_chmod(struct dentry *, struct inode *); void ceph_forget_all_cached_acls(struct inode *inode); #else #define ceph_get_acl NULL +#define ceph_set_acl NULL static inline int ceph_init_acl(struct dentry *dentry, struct inode *inode, struct inode *dir) diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index c7581f3733c1..898b6565ad3e 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -6,6 +6,7 @@ #include #include +#include #include #define XATTR_CEPH_PREFIX "ceph." @@ -17,8 +18,8 @@ */ const struct xattr_handler *ceph_xattr_handlers[] = { #ifdef CONFIG_CEPH_FS_POSIX_ACL - &ceph_xattr_acl_access_handler, - &ceph_xattr_acl_default_handler, + &posix_acl_access_xattr_handler, + &posix_acl_default_xattr_handler, #endif NULL, }; 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