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authorAl Viro <viro@zeniv.linux.org.uk>2011-06-20 11:31:30 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-20 01:43:16 -0400
commit178ea73521d64ba41d7aa5488fb9f549c6d4507d (patch)
tree7fb6bfb6483577752e307a5bb2e3905658d44294
parent07b8ce1ee87d291ff564c02cf878fae973317a52 (diff)
downloadlinux-178ea73521d64ba41d7aa5488fb9f549c6d4507d.tar.gz
kill check_acl callback of generic_permission()
its value depends only on inode and does not change; we might as well store it in ->i_op->check_acl and be done with that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat
-rw-r--r--fs/afs/security.c2
-rw-r--r--fs/btrfs/inode.c7
-rw-r--r--fs/ceph/inode.c2
-rw-r--r--fs/cifs/cifsfs.c2
-rw-r--r--fs/fuse/dir.c4
-rw-r--r--fs/gfs2/inode.c5
-rw-r--r--fs/hostfs/hostfs_kern.c2
-rw-r--r--fs/hpfs/namei.c2
-rw-r--r--fs/namei.c17
-rw-r--r--fs/nfs/dir.c2
-rw-r--r--fs/nilfs2/inode.c2
-rw-r--r--fs/ocfs2/file.c4
-rw-r--r--fs/ocfs2/namei.c1
-rw-r--r--fs/proc/base.c2
-rw-r--r--fs/reiserfs/file.c1
-rw-r--r--fs/reiserfs/namei.c4
-rw-r--r--fs/reiserfs/xattr.c18
-rw-r--r--fs/sysfs/inode.c2
-rw-r--r--include/linux/fs.h3
-rw-r--r--include/linux/reiserfs_xattr.h2
20 files changed, 47 insertions, 37 deletions
diff --git a/fs/afs/security.c b/fs/afs/security.c
index f44b9d35537713..745ee654165f90 100644
--- a/fs/afs/security.c
+++ b/fs/afs/security.c
@@ -350,7 +350,7 @@ int afs_permission(struct inode *inode, int mask, unsigned int flags)
}
key_put(key);
- ret = generic_permission(inode, mask, flags, NULL);
+ ret = generic_permission(inode, mask, flags);
_leave(" = %d", ret);
return ret;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3601f0aebddf61..f0bd873715666e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7339,7 +7339,7 @@ static int btrfs_permission(struct inode *inode, int mask, unsigned int flags)
return -EROFS;
if ((BTRFS_I(inode)->flags & BTRFS_INODE_READONLY) && (mask & MAY_WRITE))
return -EACCES;
- return generic_permission(inode, mask, flags, btrfs_check_acl);
+ return generic_permission(inode, mask, flags);
}
static const struct inode_operations btrfs_dir_inode_operations = {
@@ -7359,10 +7359,12 @@ static const struct inode_operations btrfs_dir_inode_operations = {
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
+ .check_acl = btrfs_check_acl,
};
static const struct inode_operations btrfs_dir_ro_inode_operations = {
.lookup = btrfs_lookup,
.permission = btrfs_permission,
+ .check_acl = btrfs_check_acl,
};
static const struct file_operations btrfs_dir_file_operations = {
@@ -7431,6 +7433,7 @@ static const struct inode_operations btrfs_file_inode_operations = {
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
.fiemap = btrfs_fiemap,
+ .check_acl = btrfs_check_acl,
};
static const struct inode_operations btrfs_special_inode_operations = {
.getattr = btrfs_getattr,
@@ -7440,6 +7443,7 @@ static const struct inode_operations btrfs_special_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
+ .check_acl = btrfs_check_acl,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
.readlink = generic_readlink,
@@ -7451,6 +7455,7 @@ static const struct inode_operations btrfs_symlink_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
+ .check_acl = btrfs_check_acl,
};
const struct dentry_operations btrfs_dentry_operations = {
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index d8858e96ab1870..beb5d55d6fd23c 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1805,7 +1805,7 @@ int ceph_permission(struct inode *inode, int mask, unsigned int flags)
err = ceph_do_getattr(inode, CEPH_CAP_AUTH_SHARED);
if (!err)
- err = generic_permission(inode, mask, flags, NULL);
+ err = generic_permission(inode, mask, flags);
return err;
}
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index bc4b12ca537bfa..b79804fa410fa3 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -239,7 +239,7 @@ static int cifs_permission(struct inode *inode, int mask, unsigned int flags)
on the client (above and beyond ACL on servers) for
servers which do not support setting and viewing mode bits,
so allowing client to check permissions is useful */
- return generic_permission(inode, mask, flags, NULL);
+ return generic_permission(inode, mask, flags);
}
static struct kmem_cache *cifs_inode_cachep;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index d501607145951d..0a2fcd860ad659 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1018,7 +1018,7 @@ static int fuse_permission(struct inode *inode, int mask, unsigned int flags)
}
if (fc->flags & FUSE_DEFAULT_PERMISSIONS) {
- err = generic_permission(inode, mask, flags, NULL);
+ err = generic_permission(inode, mask, flags);
/* If permission is denied, try to refresh file
attributes. This is also needed, because the root
@@ -1027,7 +1027,7 @@ static int fuse_permission(struct inode *inode, int mask, unsigned int flags)
err = fuse_perm_getattr(inode, flags);
if (!err)
err = generic_permission(inode, mask,
- flags, NULL);
+ flags);
}
/* Note: the opposite of the above test does not
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 03e0c529063e45..d5f0f4ea25dc63 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1564,7 +1564,7 @@ int gfs2_permission(struct inode *inode, int mask, unsigned int flags)
if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode))
error = -EACCES;
else
- error = generic_permission(inode, mask, flags, gfs2_check_acl);
+ error = generic_permission(inode, mask, flags);
if (unlock)
gfs2_glock_dq_uninit(&i_gh);
@@ -1854,6 +1854,7 @@ const struct inode_operations gfs2_file_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
+ .check_acl = gfs2_check_acl,
};
const struct inode_operations gfs2_dir_iops = {
@@ -1874,6 +1875,7 @@ const struct inode_operations gfs2_dir_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
+ .check_acl = gfs2_check_acl,
};
const struct inode_operations gfs2_symlink_iops = {
@@ -1888,5 +1890,6 @@ const struct inode_operations gfs2_symlink_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
+ .check_acl = gfs2_check_acl,
};
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 2638c834ed281d..a98d0d1aef6533 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -770,7 +770,7 @@ int hostfs_permission(struct inode *ino, int desired, unsigned int flags)
err = access_file(name, r, w, x);
__putname(name);
if (!err)
- err = generic_permission(ino, desired, flags, NULL);
+ err = generic_permission(ino, desired, flags);
return err;
}
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index acf95dab2aac97..bd2ce7dd8df3d2 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -398,7 +398,7 @@ again:
hpfs_unlock(dir->i_sb);
return -ENOSPC;
}
- if (generic_permission(inode, MAY_WRITE, 0, NULL) ||
+ if (generic_permission(inode, MAY_WRITE, 0) ||
!S_ISREG(inode->i_mode) ||
get_write_access(inode)) {
d_rehash(dentry);
diff --git a/fs/namei.c b/fs/namei.c
index d286cbc3f3e5ff..c5af0f37e67d73 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -176,9 +176,9 @@ EXPORT_SYMBOL(putname);
/*
* This does basic POSIX ACL permission checking
*/
-static int acl_permission_check(struct inode *inode, int mask, unsigned int flags,
- int (*check_acl)(struct inode *inode, int mask, unsigned int flags))
+static int acl_permission_check(struct inode *inode, int mask, unsigned int flags)
{
+ int (*check_acl)(struct inode *inode, int mask, unsigned int flags);
unsigned int mode = inode->i_mode;
mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
@@ -189,6 +189,7 @@ static int acl_permission_check(struct inode *inode, int mask, unsigned int flag
if (current_fsuid() == inode->i_uid)
mode >>= 6;
else {
+ check_acl = inode->i_op->check_acl;
if (IS_POSIXACL(inode) && (mode & S_IRWXG) && check_acl) {
int error = check_acl(inode, mask, flags);
if (error != -EAGAIN)
@@ -212,7 +213,6 @@ other_perms:
* generic_permission - check for access rights on a Posix-like filesystem
* @inode: inode to check access rights for
* @mask: right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
- * @check_acl: optional callback to check for Posix ACLs
* @flags: IPERM_FLAG_ flags.
*
* Used to check for read/write/execute permissions on a file.
@@ -224,15 +224,14 @@ other_perms:
* request cannot be satisfied (eg. requires blocking or too much complexity).
* It would then be called again in ref-walk mode.
*/
-int generic_permission(struct inode *inode, int mask, unsigned int flags,
- int (*check_acl)(struct inode *inode, int mask, unsigned int flags))
+int generic_permission(struct inode *inode, int mask, unsigned int flags)
{
int ret;
/*
* Do the basic POSIX ACL permission checks.
*/
- ret = acl_permission_check(inode, mask, flags, check_acl);
+ ret = acl_permission_check(inode, mask, flags);
if (ret != -EACCES)
return ret;
@@ -290,8 +289,7 @@ int inode_permission(struct inode *inode, int mask)
if (inode->i_op->permission)
retval = inode->i_op->permission(inode, mask, 0);
else
- retval = generic_permission(inode, mask, 0,
- inode->i_op->check_acl);
+ retval = generic_permission(inode, mask, 0);
if (retval)
return retval;
@@ -326,8 +324,7 @@ static inline int exec_permission(struct inode *inode, unsigned int flags)
if (likely(!ret))
goto ok;
} else {
- ret = acl_permission_check(inode, MAY_EXEC, flags,
- inode->i_op->check_acl);
+ ret = acl_permission_check(inode, MAY_EXEC, flags);
if (likely(!ret))
goto ok;
if (ret != -EACCES)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index ededdbd0db3891..0485dca34fb10b 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2328,7 +2328,7 @@ out:
out_notsup:
res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (res == 0)
- res = generic_permission(inode, mask, flags, NULL);
+ res = generic_permission(inode, mask, flags);
goto out;
}
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index b9b45fc2903e6c..650aa7755003f0 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -806,7 +806,7 @@ int nilfs_permission(struct inode *inode, int mask, unsigned int flags)
root->cno != NILFS_CPTREE_CURRENT_CNO)
return -EROFS; /* snapshot is not writable */
- return generic_permission(inode, mask, flags, NULL);
+ return generic_permission(inode, mask, flags);
}
int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh)
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index b1e35a392ca527..d058cb7e12d4c0 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1293,7 +1293,7 @@ int ocfs2_permission(struct inode *inode, int mask, unsigned int flags)
goto out;
}
- ret = generic_permission(inode, mask, flags, ocfs2_check_acl);
+ ret = generic_permission(inode, mask, flags);
ocfs2_inode_unlock(inode, 0);
out:
@@ -2593,12 +2593,14 @@ const struct inode_operations ocfs2_file_iops = {
.listxattr = ocfs2_listxattr,
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
+ .check_acl = ocfs2_check_acl,
};
const struct inode_operations ocfs2_special_file_iops = {
.setattr = ocfs2_setattr,
.getattr = ocfs2_getattr,
.permission = ocfs2_permission,
+ .check_acl = ocfs2_check_acl,
};
/*
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index e5d738cd9cc054..33889dc52dd7ee 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2498,4 +2498,5 @@ const struct inode_operations ocfs2_dir_iops = {
.listxattr = ocfs2_listxattr,
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
+ .check_acl = ocfs2_check_acl,
};
diff --git a/fs/proc/base.c b/fs/proc/base.c
index fc5bc27676926c..8b84701135763b 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2169,7 +2169,7 @@ static const struct file_operations proc_fd_operations = {
*/
static int proc_fd_permission(struct inode *inode, int mask, unsigned int flags)
{
- int rv = generic_permission(inode, mask, flags, NULL);
+ int rv = generic_permission(inode, mask, flags);
if (rv == 0)
return 0;
if (task_pid(current) == proc_pid(inode))
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 91f080cc76c8d9..bbf31003d30882 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -312,4 +312,5 @@ const struct inode_operations reiserfs_file_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
+ .check_acl = reiserfs_check_acl,
};
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 118662690cdf7a..551f1b79dbc479 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -1529,6 +1529,7 @@ const struct inode_operations reiserfs_dir_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
+ .check_acl = reiserfs_check_acl,
};
/*
@@ -1545,6 +1546,7 @@ const struct inode_operations reiserfs_symlink_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
+ .check_acl = reiserfs_check_acl,
};
@@ -1558,5 +1560,5 @@ const struct inode_operations reiserfs_special_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
-
+ .check_acl = reiserfs_check_acl,
};
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index d78089690965b3..ddc5301d2986eb 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -868,11 +868,17 @@ out:
return err;
}
-static int reiserfs_check_acl(struct inode *inode, int mask, unsigned int flags)
+int reiserfs_check_acl(struct inode *inode, int mask, unsigned int flags)
{
struct posix_acl *acl;
int error = -EAGAIN; /* do regular unix permission checks by default */
+ /*
+ * Stat data v1 doesn't support ACLs.
+ */
+ if (get_inode_sd_version(inode) == STAT_DATA_V1)
+ return -EAGAIN;
+
if (flags & IPERM_FLAG_RCU)
return -ECHILD;
@@ -961,15 +967,7 @@ int reiserfs_permission(struct inode *inode, int mask, unsigned int flags)
if (IS_PRIVATE(inode))
return 0;
-#ifdef CONFIG_REISERFS_FS_XATTR
- /*
- * Stat data v1 doesn't support ACLs.
- */
- if (get_inode_sd_version(inode) != STAT_DATA_V1)
- return generic_permission(inode, mask, flags,
- reiserfs_check_acl);
-#endif
- return generic_permission(inode, mask, flags, NULL);
+ return generic_permission(inode, mask, flags);
}
static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd)
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 0a12eb89cd32b5..a37165c64757c5 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -362,5 +362,5 @@ int sysfs_permission(struct inode *inode, int mask, unsigned int flags)
sysfs_refresh_inode(sd, inode);
mutex_unlock(&sysfs_mutex);
- return generic_permission(inode, mask, flags, NULL);
+ return generic_permission(inode, mask, flags);
}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8c84ed930389f6..0c15d5e459d541 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2187,8 +2187,7 @@ extern sector_t bmap(struct inode *, sector_t);
#endif
extern int notify_change(struct dentry *, struct iattr *);
extern int inode_permission(struct inode *, int);
-extern int generic_permission(struct inode *, int, unsigned int,
- int (*check_acl)(struct inode *, int, unsigned int));
+extern int generic_permission(struct inode *, int, unsigned int);
static inline bool execute_ok(struct inode *inode)
{
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 6deef5dc95fb03..1a3ca8f802000d 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -45,6 +45,7 @@ int reiserfs_permission(struct inode *inode, int mask, unsigned int flags);
#ifdef CONFIG_REISERFS_FS_XATTR
#define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
+int reiserfs_check_acl(struct inode *inode, int mask, unsigned int flags);
ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size);
int reiserfs_setxattr(struct dentry *dentry, const char *name,
@@ -122,6 +123,7 @@ static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
#define reiserfs_setxattr NULL
#define reiserfs_listxattr NULL
#define reiserfs_removexattr NULL
+#define reiserfs_check_acl NULL
static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
{
generated by cgit 1.2.3-korg (git 2.43.0) at 2025-12-06 21:29:01 +0000