[Ocfs2-devel] Tiny patch for cached ACLs support
jeff.liu
jeff.liu at oracle.com
Thu Mar 31 01:54:43 PDT 2011
Hi Tristan,
Thanks for you info, I'll definitely try it tonight.
Regards,
-Jeff
Tristan Ye wrote:
> jeff.liu wrote:
>> Hello,
>>
>> Below is a tiny patch for adding cached ACLs support to OCFS2, I have run a few simple tests like
>> getacl/setacl/chacl on my single node OCFS2, it works for me.
>
> Hi Jeff,
> Take a look at http://oss.oracle.com/git/ocfs2-test.git/programs/acl_tests,
> there is a somewhat comprehensive testing script in existence for posix_acl,
> maybe it can be a bit overkilling for your patch, but please just take it as a
> double-checker if you wish;-)
>
>
>
>> Any comments and testing are appreciated.
>>
>> Thanks,
>> -Jeff
>>
>>
>> Signed-off-by: Jeff Liu <jeff.liu at oracle.com>
>> ---
>> fs/ocfs2/acl.c | 12 +++++++++++-
>> fs/ocfs2/inode.c | 4 ++++
>> 2 files changed, 15 insertions(+), 1 deletions(-)
>>
>> diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
>> index 704f6b1..13c58b0 100644
>> --- a/fs/ocfs2/acl.c
>> +++ b/fs/ocfs2/acl.c
>> @@ -152,6 +152,10 @@ static struct posix_acl *ocfs2_get_acl(struct inode *inode, int type)
>> if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
>> return NULL;
>>
>> + acl = get_cached_acl(inode, type);
>> + if (acl != ACL_NOT_CACHED)
>> + return acl;
>> +
>> ret = ocfs2_inode_lock(inode, &di_bh, 0);
>> if (ret < 0) {
>> mlog_errno(ret);
>> @@ -286,6 +290,9 @@ static int ocfs2_set_acl(handle_t *handle,
>> else
>> ret = ocfs2_xattr_set(inode, name_index, "", value, size, 0);
>>
>> + if (!ret)
>> + set_cached_acl(inode, type, acl);
>> +
>> kfree(value);
>>
>> return ret;
>> @@ -348,9 +355,12 @@ int ocfs2_acl_chmod(struct inode *inode)
>> if (!clone)
>> return -ENOMEM;
>> ret = posix_acl_chmod_masq(clone, inode->i_mode);
>> - if (!ret)
>> + if (!ret) {
>> ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
>> clone, NULL, NULL);
>> + set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
>> + }
>> +
>> posix_acl_release(clone);
>> return ret;
>> }
>> diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
>> index 4068c6c..80deac8 100644
>> --- a/fs/ocfs2/inode.c
>> +++ b/fs/ocfs2/inode.c
>> @@ -28,6 +28,7 @@
>> #include <linux/highmem.h>
>> #include <linux/pagemap.h>
>> #include <linux/quotaops.h>
>> +#include <linux/posix_acl.h>
>>
>> #include <asm/byteorder.h>
>>
>> @@ -783,6 +784,9 @@ static int ocfs2_wipe_inode(struct inode *inode,
>> goto bail_unlock_dir;
>> }
>>
>> + if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL)
>> + forget_all_cached_acls(inode);
>> +
>> status = ocfs2_remove_refcount_tree(inode, di_bh);
>> if (status < 0) {
>> mlog_errno(status);
>
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