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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_inode.c
+8 -82
View File
@@ -35,11 +35,7 @@
static struct dentry *
#ifdef HAVE_LOOKUP_NAMEIDATA
zpl_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
#else
zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
#endif
{
cred_t *cr = CRED();
struct inode *ip;
@@ -113,7 +109,7 @@ zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
}
void
zpl_vap_init(vattr_t *vap, struct inode *dir, zpl_umode_t mode, cred_t *cr)
zpl_vap_init(vattr_t *vap, struct inode *dir, umode_t mode, cred_t *cr)
{
vap->va_mask = ATTR_MODE;
vap->va_mode = mode;
@@ -129,13 +125,7 @@ zpl_vap_init(vattr_t *vap, struct inode *dir, zpl_umode_t mode, cred_t *cr)
}
static int
#ifdef HAVE_CREATE_NAMEIDATA
zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
struct nameidata *nd)
#else
zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
bool flag)
#endif
zpl_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool flag)
{
cred_t *cr = CRED();
struct inode *ip;
@@ -169,7 +159,7 @@ zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
}
static int
zpl_mknod(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
zpl_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
dev_t rdev)
{
cred_t *cr = CRED();
@@ -213,7 +203,7 @@ zpl_mknod(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
#ifdef HAVE_TMPFILE
static int
zpl_tmpfile(struct inode *dir, struct dentry *dentry, zpl_umode_t mode)
zpl_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
{
cred_t *cr = CRED();
struct inode *ip;
@@ -277,7 +267,7 @@ zpl_unlink(struct inode *dir, struct dentry *dentry)
}
static int
zpl_mkdir(struct inode *dir, struct dentry *dentry, zpl_umode_t mode)
zpl_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
cred_t *cr = CRED();
vattr_t *vap;
@@ -612,46 +602,6 @@ out:
return (error);
}
#ifdef HAVE_INODE_TRUNCATE_RANGE
static void
zpl_truncate_range(struct inode *ip, loff_t start, loff_t end)
{
cred_t *cr = CRED();
flock64_t bf;
fstrans_cookie_t cookie;
ASSERT3S(start, <=, end);
/*
* zfs_freesp() will interpret (len == 0) as meaning "truncate until
* the end of the file". We don't want that.
*/
if (start == end)
return;
crhold(cr);
bf.l_type = F_WRLCK;
bf.l_whence = SEEK_SET;
bf.l_start = start;
bf.l_len = end - start;
bf.l_pid = 0;
cookie = spl_fstrans_mark();
zfs_space(ip, F_FREESP, &bf, FWRITE, start, cr);
spl_fstrans_unmark(cookie);
crfree(cr);
}
#endif /* HAVE_INODE_TRUNCATE_RANGE */
#ifdef HAVE_INODE_FALLOCATE
static long
zpl_fallocate(struct inode *ip, int mode, loff_t offset, loff_t len)
{
return (zpl_fallocate_common(ip, mode, offset, len));
}
#endif /* HAVE_INODE_FALLOCATE */
const struct inode_operations zpl_inode_operations = {
.setattr = zpl_setattr,
.getattr = zpl_getattr,
@@ -661,23 +611,11 @@ const struct inode_operations zpl_inode_operations = {
.removexattr = generic_removexattr,
#endif
.listxattr = zpl_xattr_list,
#ifdef HAVE_INODE_TRUNCATE_RANGE
.truncate_range = zpl_truncate_range,
#endif /* HAVE_INODE_TRUNCATE_RANGE */
#ifdef HAVE_INODE_FALLOCATE
.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)
#endif /* HAVE_SET_ACL */
.get_acl = zpl_get_acl,
#elif defined(HAVE_CHECK_ACL)
.check_acl = zpl_check_acl,
#elif defined(HAVE_PERMISSION)
.permission = zpl_permission,
#endif /* HAVE_GET_ACL | HAVE_CHECK_ACL | HAVE_PERMISSION */
#endif /* CONFIG_FS_POSIX_ACL */
};
@@ -709,14 +647,8 @@ const struct inode_operations zpl_dir_inode_operations = {
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif
#if defined(HAVE_GET_ACL)
#endif /* HAVE_SET_ACL */
.get_acl = zpl_get_acl,
#elif defined(HAVE_CHECK_ACL)
.check_acl = zpl_check_acl,
#elif defined(HAVE_PERMISSION)
.permission = zpl_permission,
#endif /* HAVE_GET_ACL | HAVE_CHECK_ACL | HAVE_PERMISSION */
#endif /* CONFIG_FS_POSIX_ACL */
};
@@ -754,13 +686,7 @@ const struct inode_operations zpl_special_inode_operations = {
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif
#if defined(HAVE_GET_ACL)
#endif /* HAVE_SET_ACL */
.get_acl = zpl_get_acl,
#elif defined(HAVE_CHECK_ACL)
.check_acl = zpl_check_acl,
#elif defined(HAVE_PERMISSION)
.permission = zpl_permission,
#endif /* HAVE_GET_ACL | HAVE_CHECK_ACL | HAVE_PERMISSION */
#endif /* CONFIG_FS_POSIX_ACL */
};