These routines set up set and start a new deferred attribute
operation. These functions are meant to be called by other
code needing to initiate a deferred attribute operation. We
will use these routines later in the parent pointer patches.
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_attr.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++
fs/xfs/xfs_attr.h | 7 ++++++
2 files changed, 65 insertions(+)
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index 5325ec2..59f3502 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -458,6 +458,37 @@ xfs_attr_set(
return error;
}
+int
+xfs_attr_set_deferred(
+ struct xfs_inode *dp,
+ struct xfs_defer_ops *dfops,
+ const unsigned char *name,
+ unsigned int namelen,
+ unsigned char *value,
+ unsigned int valuelen,
+ int flags)
+{
+
+ struct xfs_attr_item *new;
+
+ ASSERT(namelen != 0);
+ ASSERT(valuelen != 0);
+
+ new = kmem_alloc(sizeof(struct xfs_attr_item), KM_SLEEP|KM_NOFS);
+ memset(new, 0, sizeof(struct xfs_attr_item));
+ new->xattri_ino = dp->i_ino;
+ new->xattri_op_flags = ATTR_OP_FLAGS_SET;
+ new->xattri_name_len = namelen;
+ new->xattri_value_len = valuelen;
+ new->xattri_flags = flags;
+ memcpy(new->xattri_name, name, namelen);
+ memcpy(&new->xattri_value, value, valuelen);
+
+ xfs_defer_add(dfops, XFS_DEFER_OPS_TYPE_ATTR, &new->xattri_list);
+
+ return 0;
+}
+
/*
* Generic handler routine to remove a name from an attribute list.
* Transitions attribute list from Btree to shortform as necessary.
@@ -531,6 +562,33 @@ xfs_attr_remove(
return error;
}
+int
+xfs_attr_remove_deferred(
+ struct xfs_inode *dp,
+ struct xfs_defer_ops *dfops,
+ const unsigned char *name,
+ unsigned int namelen,
+ int flags)
+{
+
+ struct xfs_attr_item *new;
+
+ ASSERT(namelen != 0);
+
+ new = kmem_alloc(sizeof(struct xfs_attr_item), KM_SLEEP|KM_NOFS);
+ memset(new, 0, sizeof(struct xfs_attr_item));
+ new->xattri_ino = dp->i_ino;
+ new->xattri_op_flags = ATTR_OP_FLAGS_REMOVE;
+ new->xattri_name_len = namelen;
+ new->xattri_value_len = 0;
+ new->xattri_flags = flags;
+ memcpy(new->xattri_name, name, namelen);
+
+ xfs_defer_add(dfops, XFS_DEFER_OPS_TYPE_ATTR, &new->xattri_list);
+
+ return 0;
+}
+
/*========================================================================
* External routines when attribute list is inside the inode
*========================================================================*/
diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h
index 34bb4cb..f4a53fd 100644
--- a/fs/xfs/xfs_attr.h
+++ b/fs/xfs/xfs_attr.h
@@ -173,5 +173,12 @@ int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize,
int xfs_attr_args_init(struct xfs_da_args *args, struct xfs_inode *dp,
const unsigned char *name, int flags);
int xfs_attr_calc_size(struct xfs_da_args *args, int *local);
+int xfs_attr_set_deferred(struct xfs_inode *dp, struct xfs_defer_ops *dfops,
+ const unsigned char *name, unsigned int name_len,
+ unsigned char *value, unsigned int valuelen,
+ int flags);
+int xfs_attr_remove_deferred(struct xfs_inode *dp, struct xfs_defer_ops *dfops,
+ const unsigned char *name, unsigned int namelen,
+ int flags);
#endif /* __XFS_ATTR_H__ */
--
2.7.4
--
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