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Linux 3.14 compat: assign inode->set_acl

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Linux 3.14 introduces inode->set_acl(). Normally, acl modification will come
from setxattr, which will handle by the acl xattr_handler, and we already
handles that well. However, nfsd will directly calls inode->set_acl or
return error if it doesn't exists.

Reviewed-by: Tim Chase <tim@chase2k.com>
Reviewed-by: Massimo Maggi <me@massimo-maggi.eu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Closes #5371 
Closes #5375
This commit is contained in:
tuxoko 2016-11-09 10:37:17 -08:00 committed by Brian Behlendorf
parent 66f801f00a
commit 0420c126ce
5 changed files with 42 additions and 7 deletions
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25
config/kernel-acl.m4
View File

@ -279,6 +279,31 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [
])
])
dnl #
dnl # 3.14 API change,
dnl # Check if inode_operations contains the function set_acl
dnl #
AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [
AC_MSG_CHECKING([whether iops->set_acl() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
int set_acl_fn(struct inode *inode, struct posix_acl *acl, int type)
{ return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.set_acl = set_acl_fn,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 4.7 API change,
dnl # The kernel get_acl will now check cache before calling i_op->get_acl and

1
config/kernel.m4
View File

@ -55,6 +55,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL
ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS
ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL
ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL
ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE
ZFS_AC_KERNEL_SHOW_OPTIONS
ZFS_AC_KERNEL_FILE_INODE

2
include/sys/zpl.h
View File

@ -76,7 +76,7 @@ extern ssize_t zpl_xattr_list(struct dentry *dentry, char *buf, size_t size);
extern int zpl_xattr_security_init(struct inode *ip, struct inode *dip,
const struct qstr *qstr);
#if defined(CONFIG_FS_POSIX_ACL)
extern int zpl_set_acl(struct inode *ip, int type, struct posix_acl *acl);
extern int zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type);
extern struct posix_acl *zpl_get_acl(struct inode *ip, int type);
#if !defined(HAVE_GET_ACL)
#if defined(HAVE_CHECK_ACL_WITH_FLAGS)

9
module/zfs/zpl_inode.c
View File

@ -716,6 +716,9 @@ const struct inode_operations zpl_inode_operations = {
.fallocate = zpl_fallocate,
#endif /* HAVE_INODE_FALLOCATE */
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif
#if defined(HAVE_GET_ACL)
.get_acl = zpl_get_acl,
#elif defined(HAVE_CHECK_ACL)
@ -752,6 +755,9 @@ const struct inode_operations zpl_dir_inode_operations = {
#endif
.listxattr = zpl_xattr_list,
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif
#if defined(HAVE_GET_ACL)
.get_acl = zpl_get_acl,
#elif defined(HAVE_CHECK_ACL)
@ -792,6 +798,9 @@ const struct inode_operations zpl_special_inode_operations = {
#endif
.listxattr = zpl_xattr_list,
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif
#if defined(HAVE_GET_ACL)
.get_acl = zpl_get_acl,
#elif defined(HAVE_CHECK_ACL)

12
module/zfs/zpl_xattr.c
View File

@ -936,7 +936,7 @@ xattr_handler_t zpl_xattr_security_handler = {
*/
#ifdef CONFIG_FS_POSIX_ACL
int
zpl_set_acl(struct inode *ip, int type, struct posix_acl *acl)
zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type)
{
struct super_block *sb = ITOZSB(ip)->z_sb;
char *name, *value = NULL;
@ -1140,7 +1140,7 @@ zpl_init_acl(struct inode *ip, struct inode *dir)
umode_t mode;
if (S_ISDIR(ip->i_mode)) {
error = zpl_set_acl(ip, ACL_TYPE_DEFAULT, acl);
error = zpl_set_acl(ip, acl, ACL_TYPE_DEFAULT);
if (error)
goto out;
}
@ -1151,7 +1151,7 @@ zpl_init_acl(struct inode *ip, struct inode *dir)
ip->i_mode = mode;
zfs_mark_inode_dirty(ip);
if (error > 0)
error = zpl_set_acl(ip, ACL_TYPE_ACCESS, acl);
error = zpl_set_acl(ip, acl, ACL_TYPE_ACCESS);
}
}
out:
@ -1178,7 +1178,7 @@ zpl_chmod_acl(struct inode *ip)
error = __posix_acl_chmod(&acl, GFP_KERNEL, ip->i_mode);
if (!error)
error = zpl_set_acl(ip, ACL_TYPE_ACCESS, acl);
error = zpl_set_acl(ip, acl, ACL_TYPE_ACCESS);
zpl_posix_acl_release(acl);
@ -1308,7 +1308,7 @@ __zpl_xattr_acl_set_access(struct inode *ip, const char *name,
acl = NULL;
}
error = zpl_set_acl(ip, type, acl);
error = zpl_set_acl(ip, acl, type);
zpl_posix_acl_release(acl);
return (error);
@ -1348,7 +1348,7 @@ __zpl_xattr_acl_set_default(struct inode *ip, const char *name,
acl = NULL;
}
error = zpl_set_acl(ip, type, acl);
error = zpl_set_acl(ip, acl, type);
zpl_posix_acl_release(acl);
return (error);