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Starting from Linux 4.7, get_acl will set acl cache pointer to temporary
sentinel value before calling i_op->get_acl. Therefore we can't compare
against ACL_NOT_CACHED and return.
Since from Linux 3.14, get_acl already check the cache for us, so we
disable this in zpl_get_acl.
Linux 4.7 also does set_cached_acl for us so we disable it in zpl_get_acl.
Signed-off-by: Chunwei Chen <[email protected]>
Signed-off-by: Nikolay Borisov <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #4944
Closes #4946
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The posix_acl_valid() function has been updated to require a
user namespace. Filesystem callers should normally provide the
user_ns from the super block associcated with the ACL; the
zpl_posix_acl_valid() wrapper has been added for this purpose.
See https://github.com/torvalds/linux/commit/0d4d717f for
complete details.
Signed-off-by: Brian Behlendorf <[email protected]>
Signed-off-by: Nikolay Borisov <[email protected]>
Signed-off-by: Chunwei Chen <[email protected]>
Closes #4922
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Remove ZFS_AC_KERNEL_CURRENT_UMASK and ZFS_AC_KERNEL_POSIX_ACL_CACHING
configure checks, all supported kernel provide this functionality.
Signed-off-by: Brian Behlendorf <[email protected]>
Signed-off-by: Nikolay Borisov <[email protected]>
Signed-off-by: Chunwei Chen <[email protected]>
Closes #4922
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The GPL test for posix_acl_release() didn't include <linux/module.h>.
Also run this test only when posix_acl_release() exists.
Signed-off-by: Chunwei Chen <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #4665
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Apply the license specified in the META file to ensure the
compatibility checks are all performed consistently.
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #2757
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posix_acl_{create,chmod} is changed to __posix_acl_{create_chmod}
Signed-off-by: Chunwei Chen <[email protected]>
Signed-off-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #2124
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This change adds support for Posix ACLs by storing them as an xattr
which is common practice for many Linux file systems. Since the
Posix ACL is stored as an xattr it will not overwrite any existing
ZFS/NFSv4 ACLs which may have been set. The Posix ACL will also
be non-functional on other platforms although it may be visible
as an xattr if that platform understands SA based xattrs.
By default Posix ACLs are disabled but they may be enabled with
the new 'aclmode=noacl|posixacl' property. Set the property to
'posixacl' to enable them. If ZFS/NFSv4 ACL support is ever added
an appropriate acltype will be added.
This change passes the POSIX Test Suite cleanly with the exception
of xacl/00.t test 45 which is incorrect for Linux (Ext4 fails too).
http://www.tuxera.com/community/posix-test-suite/
Signed-off-by: Massimo Maggi <[email protected]>
Signed-off-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #170
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