orangefs: Implement inode_operations->permission().
Thus d_revalidate is not obliged to check on as much, which will
eventually lead the way to hammering the filesystem servers much less.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c
index e8fb79d..a6911db 100644
--- a/fs/orangefs/dcache.c
+++ b/fs/orangefs/dcache.c
@@ -119,8 +119,9 @@
goto out;
/* Now we must perform a getattr to validate the inode contents. */
+
ret = orangefs_inode_getattr(dentry->d_inode,
- ORANGEFS_ATTR_SYS_ALL_NOHINT, 1);
+ ORANGEFS_ATTR_SYS_TYPE|ORANGEFS_ATTR_SYS_LNK_TARGET, 1);
if (ret < 0) {
gossip_debug(GOSSIP_DCACHE_DEBUG, "%s:%s:%d getattr failure.\n",
__FILE__, __func__, __LINE__);
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 040cd95..e9688f0 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -291,6 +291,24 @@
return ret;
}
+int orangefs_permission(struct inode *inode, int mask)
+{
+ int ret;
+
+ if (mask & MAY_NOT_BLOCK)
+ return -ECHILD;
+
+ gossip_debug(GOSSIP_INODE_DEBUG, "%s: refreshing\n", __func__);
+
+ /* Make sure the permission (and other common attrs) are up to date. */
+ ret = orangefs_inode_getattr(inode,
+ ORANGEFS_ATTR_SYS_ALL_NOHINT_NOSIZE, 0);
+ if (ret < 0)
+ return ret;
+
+ return generic_permission(inode, mask);
+}
+
/* ORANGEDS2 implementation of VFS inode operations for files */
struct inode_operations orangefs_file_inode_operations = {
.get_acl = orangefs_get_acl,
@@ -301,6 +319,7 @@
.getxattr = generic_getxattr,
.listxattr = orangefs_listxattr,
.removexattr = generic_removexattr,
+ .permission = orangefs_permission,
};
static int orangefs_init_iops(struct inode *inode)
diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c
index 50bc45d..8fc55c6 100644
--- a/fs/orangefs/namei.c
+++ b/fs/orangefs/namei.c
@@ -443,4 +443,5 @@
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
.listxattr = orangefs_listxattr,
+ .permission = orangefs_permission,
};
diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h
index d4db962..a8cde90 100644
--- a/fs/orangefs/orangefs-kernel.h
+++ b/fs/orangefs/orangefs-kernel.h
@@ -493,6 +493,8 @@
struct dentry *dentry,
struct kstat *kstat);
+int orangefs_permission(struct inode *inode, int mask);
+
/*
* defined in xattr.c
*/
diff --git a/fs/orangefs/protocol.h b/fs/orangefs/protocol.h
index 56dd65a..6ac0c60 100644
--- a/fs/orangefs/protocol.h
+++ b/fs/orangefs/protocol.h
@@ -205,6 +205,15 @@
ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT | \
ORANGEFS_ATTR_SYS_DIRENT_COUNT | \
ORANGEFS_ATTR_SYS_BLKSIZE)
+
+#define ORANGEFS_ATTR_SYS_ALL_NOHINT_NOSIZE \
+ (ORANGEFS_ATTR_SYS_COMMON_ALL | \
+ ORANGEFS_ATTR_SYS_LNK_TARGET | \
+ ORANGEFS_ATTR_SYS_DFILE_COUNT | \
+ ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT | \
+ ORANGEFS_ATTR_SYS_DIRENT_COUNT | \
+ ORANGEFS_ATTR_SYS_BLKSIZE)
+
#define ORANGEFS_XATTR_REPLACE 0x2
#define ORANGEFS_XATTR_CREATE 0x1
#define ORANGEFS_MAX_SERVER_ADDR_LEN 256
diff --git a/fs/orangefs/symlink.c b/fs/orangefs/symlink.c
index 1b3ae63..2b8541a 100644
--- a/fs/orangefs/symlink.c
+++ b/fs/orangefs/symlink.c
@@ -28,4 +28,5 @@
.getattr = orangefs_getattr,
.listxattr = orangefs_listxattr,
.setxattr = generic_setxattr,
+ .permission = orangefs_permission,
};