[Ocfs2-devel] Tiny patch for cached ACLs support
jeff.liu
jeff.liu at oracle.com
Thu Mar 31 01:28:59 PDT 2011
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.
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);
--
1.5.4.3
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