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Linux compat: Minimum kernel version 3.10

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Increase the minimum supported kernel version from 2.6.32 to 3.10.
This removes support for the following Linux enterprise distributions.

    Distribution     | Kernel | End of Life
    ---------------- | ------ | -------------
    Ubuntu 12.04 LTS | 3.2    | Apr 28, 2017
    SLES 11          | 3.0    | Mar 32, 2019
    RHEL / CentOS 6  | 2.6.32 | Nov 30, 2020

The following changes were made as part of removing support.

* Updated `configure` to enforce a minimum kernel version as
  specified in the META file (Linux-Minimum: 3.10).

    configure: error:
        *** Cannot build against kernel version 2.6.32.
        *** The minimum supported kernel version is 3.10.

* Removed all `configure` kABI checks and matching C code for
  interfaces which solely predate the Linux 3.10 kernel.

* Updated all `configure` kABI checks to fail when an interface is
  missing which was in the 3.10 kernel up to the latest 5.1 kernel.
  Removed the HAVE_* preprocessor defines for these checks and
  updated the code to unconditionally use the verified interface.

* Inverted the detection logic in several kABI checks to match
  the new interface as it appears in 3.10 and newer and not the
  legacy interface.

* Consolidated the following checks in to individual files. Due
  the large number of changes in the checks it made sense to handle
  this now.  It would be desirable to group other related checks in
  the same fashion, but this as left as future work.

  - config/kernel-blkdev.m4 - Block device kABI checks
  - config/kernel-blk-queue.m4 - Block queue kABI checks
  - config/kernel-bio.m4 - Bio interface kABI checks

* Removed the kABI checks for sops->nr_cached_objects() and
  sops->free_cached_objects().  These interfaces are currently unused.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9566
This commit is contained in:
Brian Behlendorf
2019-11-12 08:59:06 -08:00
committed by GitHub
parent 035ebb3653
commit 066e825221
102 changed files with 1136 additions and 2965 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/zfs/zpl_xattr.c
+5 -84
View File
@@ -113,9 +113,6 @@ zpl_xattr_permission(xattr_filldir_t *xf, const char *name, int name_len)
#elif defined(HAVE_XATTR_LIST_HANDLER)
if (!handler->list(handler, d, NULL, 0, name, name_len))
return (0);
#elif defined(HAVE_XATTR_LIST_INODE)
if (!handler->list(d->d_inode, NULL, 0, name, name_len))
return (0);
#endif
}
@@ -870,9 +867,8 @@ __zpl_xattr_security_set(struct inode *ip, const char *name,
}
ZPL_XATTR_SET_WRAPPER(zpl_xattr_security_set);
#ifdef HAVE_CALLBACK_SECURITY_INODE_INIT_SECURITY
static int
__zpl_xattr_security_init(struct inode *ip, const struct xattr *xattrs,
zpl_xattr_security_init_impl(struct inode *ip, const struct xattr *xattrs,
void *fs_info)
{
const struct xattr *xattr;
@@ -894,37 +890,9 @@ zpl_xattr_security_init(struct inode *ip, struct inode *dip,
const struct qstr *qstr)
{
return security_inode_init_security(ip, dip, qstr,
&__zpl_xattr_security_init, NULL);
&zpl_xattr_security_init_impl, NULL);
}
#else
int
zpl_xattr_security_init(struct inode *ip, struct inode *dip,
const struct qstr *qstr)
{
int error;
size_t len;
void *value;
char *name;
error = zpl_security_inode_init_security(ip, dip, qstr,
&name, &value, &len);
if (error) {
if (error == -EOPNOTSUPP)
return (0);
return (error);
}
error = __zpl_xattr_security_set(ip, name, value, len, 0);
kfree(name);
kfree(value);
return (error);
}
#endif /* HAVE_CALLBACK_SECURITY_INODE_INIT_SECURITY */
/*
* Security xattr namespace handlers.
*/
@@ -958,7 +926,7 @@ zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type)
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
zpl_equivmode_t mode = ip->i_mode;
umode_t mode = ip->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
if (error < 0) {
return (error);
@@ -1073,53 +1041,6 @@ zpl_get_acl(struct inode *ip, int type)
return (acl);
}
#if !defined(HAVE_GET_ACL)
static int
__zpl_check_acl(struct inode *ip, int mask)
{
struct posix_acl *acl;
int error;
acl = zpl_get_acl(ip, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return (PTR_ERR(acl));
if (acl) {
error = posix_acl_permission(ip, acl, mask);
zpl_posix_acl_release(acl);
return (error);
}
return (-EAGAIN);
}
#if defined(HAVE_CHECK_ACL_WITH_FLAGS)
int
zpl_check_acl(struct inode *ip, int mask, unsigned int flags)
{
return (__zpl_check_acl(ip, mask));
}
#elif defined(HAVE_CHECK_ACL)
int
zpl_check_acl(struct inode *ip, int mask)
{
return (__zpl_check_acl(ip, mask));
}
#elif defined(HAVE_PERMISSION_WITH_NAMEIDATA)
int
zpl_permission(struct inode *ip, int mask, struct nameidata *nd)
{
return (generic_permission(ip, mask, __zpl_check_acl));
}
#elif defined(HAVE_PERMISSION)
int
zpl_permission(struct inode *ip, int mask)
{
return (generic_permission(ip, mask, __zpl_check_acl));
}
#endif /* HAVE_CHECK_ACL | HAVE_PERMISSION */
#endif /* !HAVE_GET_ACL */
int
zpl_init_acl(struct inode *ip, struct inode *dir)
{
@@ -1295,7 +1216,7 @@ __zpl_xattr_acl_set_access(struct inode *ip, const char *name,
if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIXACL)
return (-EOPNOTSUPP);
if (!zpl_inode_owner_or_capable(ip))
if (!inode_owner_or_capable(ip))
return (-EPERM);
if (value) {
@@ -1335,7 +1256,7 @@ __zpl_xattr_acl_set_default(struct inode *ip, const char *name,
if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIXACL)
return (-EOPNOTSUPP);
if (!zpl_inode_owner_or_capable(ip))
if (!inode_owner_or_capable(ip))
return (-EPERM);
if (value) {