{"id":4180,"date":"2022-12-20T17:39:38","date_gmt":"2022-12-20T20:39:38","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/skb_dequeue-man9\/"},"modified":"2022-12-20T17:39:38","modified_gmt":"2022-12-20T20:39:38","slug":"skb_dequeue-man9","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/skb_dequeue-man9\/","title":{"rendered":"SKB_DEQUEUE (man9)"},"content":{"rendered":"

SKB_DEQUEUE<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
RETURN VALUE<\/a>
NOTES<\/a>
AVAILABILITY<\/a>
SEE ALSO<\/a>
AUTHOR<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

__skb_dequeue, skb_dequeue \u2212 remove an sk_buff from the head of a list<\/p>\n

SYNOPSIS <\/a> <\/h2>\n

#include <\/b><\/p>\n\n\n
<\/td>\n\n

struct sk_buff *__skb_dequeue(struct sk_buff_head<\/b> *list<\/i>);<\/b><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

struct sk_buff *skb_dequeue(struct sk_buff_head<\/b> *list<\/i>);<\/b><\/p>\n<\/table>\n

DESCRIPTION <\/a> <\/h2>\n

The skb_dequeue<\/b> function removes the head element of an sk_buff_head. It decrements the list qlen pointer, and cleanly detaches the head from the queue. This function should be used instead of performing this task manually, as it provides a clean, standardized way of manipulating an sk_buff_head, and provides interrupt disabling (see NOTES<\/b> below.)<\/p>\n

RETURN VALUE <\/a> <\/h2>\n

Returns a pointer to the head element of list<\/i>, or NULL<\/b> if list<\/i> is empty.<\/p>\n

NOTES <\/a> <\/h2>\n

It is important to note the difference between not only __skb_dequeue<\/b> and skb_dequeue<\/b>, but all the __skb_<\/b> functions and their skb_<\/b> counterparts. Essentially, the __skb_<\/b> functions are non-atomic, and should only be used with interrupts disabled. As a convenience, the skb_<\/b> functions are provided, which perform interrupt disable \/ enable wrapper functionality in addition to performing their specific tasks.<\/p>\n

AVAILABILITY <\/a> <\/h2>\n

Linux 1.0+<\/p>\n

SEE ALSO <\/a> <\/h2>\n

intro<\/b>(9), skb_unlink<\/b>(9), skb_insert<\/b>(9), skb_queue_head<\/b>(9), skb_queue_tail<\/b>(9)<\/p>\n

\/usr\/src\/linux\/net\/netlink.c \/usr\/src\/linux\/net\/ax25\/af_ax25.c \/usr\/src\/linux\/net\/core\/datagram.c \/usr\/src\/linux\/net\/ipv4\/ipmr.c \/usr\/src\/linux\/net\/ipv4\/tcp.c<\/p>\n

AUTHOR <\/a> <\/h2>\n

Cyrus Durgin <\/p>\n

\n","protected":false},"excerpt":{"rendered":"

__skb_dequeue, skb_dequeue \u2212 remove an sk_buff from the head of a list <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1222],"tags":[1226,1223,1225,1260],"class_list":["post-4180","post","type-post","status-publish","format-standard","hentry","category-9-rutinas-del-nucleo","tag-1226","tag-kernel","tag-man9","tag-skb_dequeue"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/4180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=4180"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/4180\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=4180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=4180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=4180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}