diff options
Diffstat (limited to 'package/hotplug2/patches/120-throttling.patch')
| -rw-r--r-- | package/hotplug2/patches/120-throttling.patch | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/package/hotplug2/patches/120-throttling.patch b/package/hotplug2/patches/120-throttling.patch deleted file mode 100644 index bfb7fb075..000000000 --- a/package/hotplug2/patches/120-throttling.patch +++ /dev/null @@ -1,138 +0,0 @@ -Index: hotplug2-0.9/hotplug2.c -=================================================================== ---- hotplug2-0.9.orig/hotplug2.c 2008-08-04 10:02:27.000000000 +0200 -+++ hotplug2-0.9/hotplug2.c 2008-08-04 10:03:04.000000000 +0200 -@@ -21,6 +21,7 @@ - #include <sys/mman.h> - #include <linux/types.h> - #include <linux/netlink.h> -+#include <poll.h> - - #include "mem_utils.h" - #include "filemap_utils.h" -@@ -492,6 +493,11 @@ - char *coldplug_command = NULL; - char *rules_file = HOTPLUG2_RULE_PATH; - sigset_t block_mask; -+ struct pollfd msg_poll; -+ -+ struct hotplug2_event_t *backlog = NULL; -+ struct hotplug2_event_t *backlog_tail = NULL; -+ int n_backlog = 0; - - struct rules_t *rules = NULL; - struct filemap_t filemap; -@@ -602,6 +608,8 @@ - * Open netlink socket to read the uevents - */ - netlink_socket = init_netlink_socket(NETLINK_BIND); -+ msg_poll.fd = netlink_socket; -+ msg_poll.events = POLLIN; - - if (netlink_socket == -1) { - ERROR("netlink init","Unable to open netlink socket."); -@@ -642,20 +650,44 @@ - * Main loop reading uevents - */ - while (!terminate) { -- /* -- * Read the uevent packet -- */ -- size = recv(netlink_socket, &buffer, sizeof(buffer), 0); -- recv_errno = errno; -+ if ((n_backlog > 0) && (child_c < max_child_c)) { -+ /* dequeue backlog message */ -+ tmpevent = backlog; -+ backlog = backlog->next; -+ n_backlog--; -+ if (backlog_tail == tmpevent) -+ backlog_tail = NULL; -+ } else { -+ /* -+ * Read the uevent packet -+ */ -+ if (n_backlog >= HOTPLUG2_MSG_BACKLOG) { -+ usleep(HOTPLUG2_THROTTLE_INTERVAL * 1000); -+ continue; -+ } -+ -+ if ((n_backlog > 0) && (child_c >= max_child_c)) { -+ int fds; -+ msg_poll.revents = 0; -+ fds = poll(&msg_poll, 1, HOTPLUG2_THROTTLE_INTERVAL); -+ if (fds < 0) { -+ continue; -+ } -+ if (fds == 0) -+ continue; -+ } -+ size = recv(netlink_socket, &buffer, sizeof(buffer), 0); -+ recv_errno = errno; - -- /* -- * Parse the event into an event structure -- */ -- tmpevent = get_hotplug2_event(buffer, size); -+ /* -+ * Parse the event into an event structure -+ */ -+ tmpevent = get_hotplug2_event(buffer, size); - -- if (tmpevent == NULL) { -- ERROR("reading events", "Malformed event read (missing action prefix)."); -- continue; -+ if (tmpevent == NULL) { -+ ERROR("reading events", "Malformed event read (missing action prefix)."); -+ continue; -+ } - } - - /* -@@ -706,13 +738,16 @@ - * Unless, of course, we've specified otherwise and no rules that match - * need throttling. - */ -- if (!flags & FLAG_NOTHROTTLE) { -- /* -- * Okay, throttle away! -- */ -- while (child_c >= max_child_c) { -- usleep(HOTPLUG2_THROTTLE_INTERVAL); -- } -+ if (!(flags & FLAG_NOTHROTTLE) && (child_c >= max_child_c)) { -+ /* log the packet and process it later */ -+ if (backlog_tail) -+ backlog_tail->next = tmpevent; -+ else -+ backlog = tmpevent; -+ tmpevent->next = NULL; -+ backlog_tail = tmpevent; -+ n_backlog++; -+ continue; - } - - sigemptyset(&block_mask); -Index: hotplug2-0.9/hotplug2.h -=================================================================== ---- hotplug2-0.9.orig/hotplug2.h 2008-08-04 10:02:27.000000000 +0200 -+++ hotplug2-0.9/hotplug2.h 2008-08-04 10:02:27.000000000 +0200 -@@ -45,9 +45,9 @@ - #define DBG(action, fmt, arg...) - #endif - -+#define HOTPLUG2_MSG_BACKLOG 64 - #define UEVENT_BUFFER_SIZE 2048 --#define HOTPLUG2_POLL_INTERVAL 20000 --#define HOTPLUG2_THROTTLE_INTERVAL 10000 -+#define HOTPLUG2_THROTTLE_INTERVAL 50 - #define HOTPLUG2_RULE_PATH "/etc/hotplug2.rules" - - #define ACTION_ADD 0 -@@ -76,6 +76,7 @@ - int env_vars_c; - char *plain; - int plain_s; -+ struct hotplug2_event_t *next; - }; - - struct options_t { |