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Honor CONFIG_FS_POSIX_ACL kernel option

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The required Posix ACL interfaces are only available for kernels
with CONFIG_FS_POSIX_ACL defined.  Therefore, only enable Posix
ACL support for these kernels.  All major distribution kernels
enable CONFIG_FS_POSIX_ACL by default.

If your kernel does not support Posix ACLs the following warning
will be printed at ZFS module load time.

  "ZFS: Posix ACLs disabled by kernel"

Signed-off-by: Massimo Maggi <me@massimo-maggi.eu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1825
This commit is contained in:
Massimo Maggi
2013-11-03 00:40:26 +01:00
committed by Brian Behlendorf
parent 78e2739d3c
commit b695c34ea4
7 changed files with 38 additions and 0 deletions
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module/zfs/zfs_vfsops.c
+5
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@@ -165,8 +165,13 @@ acltype_changed_cb(void *arg, uint64_t newval)
zsb->z_sb->s_flags &= ~MS_POSIXACL;
break;
case ZFS_ACLTYPE_POSIXACL:
#ifdef CONFIG_FS_POSIX_ACL
zsb->z_acl_type = ZFS_ACLTYPE_POSIXACL;
zsb->z_sb->s_flags |= MS_POSIXACL;
#else
zsb->z_acl_type = ZFS_ACLTYPE_OFF;
zsb->z_sb->s_flags &= ~MS_POSIXACL;
#endif /* CONFIG_FS_POSIX_ACL */
break;
default:
break;