diff options
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man9/mbuf_tags.9 | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/share/man/man9/mbuf_tags.9 b/share/man/man9/mbuf_tags.9 index ab74791..6992b05 100644 --- a/share/man/man9/mbuf_tags.9 +++ b/share/man/man9/mbuf_tags.9 @@ -91,8 +91,7 @@ fields are set to type, length, and cookie, respectively. .Va m_tag_free -points to -.Xr free 9 . +points to a function which will be used to free this tag. Following this structure are .Va m_tag_len bytes of space that can be used to store tag-specific information. @@ -194,11 +193,16 @@ Return the first tag associated with .It Fn m_tag_free tag Free .Fa tag -using its -.Va m_tag_free -method. -.Xr free 9 -is used by default. +using default free method. +This function should only be used at the end of a custom free method. +It should never be used to free a packet tag of an unknown origination. +To perform the latter +.Fn m_tag_delete +should be used in case of an attached +.Fa tag +or (tag->m_tag_free)(tag) +should be called in case of a detached +.Fa tag . .It Fn m_tag_init mbuf Initialize the tag storage for packet .Fa mbuf . |
