239613e306
- multi-map doesn't pickup NIS updates automatically. - eliminate redundant DNS name lookups. - mount thread create condition handling fix. - allow directory create on NFS root. - check direct mount path length. - fix incorrect in check in get user info. - fix a couple of memory leaks.
224 lines
6.5 KiB
Diff
224 lines
6.5 KiB
Diff
autofs-5.0.3 - mount thread create condition handling fix
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From: Ian Kent <raven@themaw.net>
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Make the mount thread creation condition mutex specific to the
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thread being created.
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---
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CHANGELOG | 1 +
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daemon/direct.c | 31 +++++++++++++++++++++++--------
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daemon/indirect.c | 31 +++++++++++++++++++++++--------
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3 files changed, 47 insertions(+), 16 deletions(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index 995daea..f7aa839 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -18,6 +18,7 @@
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- update nsswitch parser to ignore nsswitch sources that aren't supported.
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- check for map key in (possible) alternate map sources when doing lookup.
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- eliminate redundant DNS name lookups.
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+- additional fix incorrect pthreads condition handling for mount requests.
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14/01/2008 autofs-5.0.3
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-----------------------
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diff --git a/daemon/direct.c b/daemon/direct.c
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index 86c817c..768fbf9 100644
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--- a/daemon/direct.c
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+++ b/daemon/direct.c
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@@ -50,7 +50,6 @@ pthread_key_t key_mnt_direct_params;
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pthread_key_t key_mnt_offset_params;
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pthread_once_t key_mnt_params_once = PTHREAD_ONCE_INIT;
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-static pthread_mutex_t ma_mutex = PTHREAD_MUTEX_INITIALIZER;
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static pthread_mutex_t ea_mutex = PTHREAD_MUTEX_INITIALIZER;
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static void key_mnt_params_destroy(void *arg)
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@@ -1218,9 +1217,18 @@ static void mount_send_fail(void *arg)
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close(mt->ioctlfd);
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}
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+static void pending_mutex_destroy(void *arg)
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+{
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+ struct pending_args *mt = (struct pending_args *) arg;
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+ int status = pthread_mutex_destroy(&mt->mutex);
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+ if (status)
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+ fatal(status);
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+}
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+
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static void mount_mutex_unlock(void *arg)
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{
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- int status = pthread_mutex_unlock(&ma_mutex);
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+ struct pending_args *mt = (struct pending_args *) arg;
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+ int status = pthread_mutex_unlock(&mt->mutex);
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if (status)
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fatal(status);
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}
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@@ -1243,7 +1251,7 @@ static void *do_mount_direct(void *arg)
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args = (struct pending_args *) arg;
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- status = pthread_mutex_lock(&ma_mutex);
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+ status = pthread_mutex_lock(&args->mutex);
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if (status)
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fatal(status);
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@@ -1256,7 +1264,7 @@ static void *do_mount_direct(void *arg)
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if (status)
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fatal(status);
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- mount_mutex_unlock(NULL);
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+ mount_mutex_unlock(args);
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pthread_cleanup_push(mount_send_fail, &mt);
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@@ -1533,7 +1541,11 @@ int handle_packet_missing_direct(struct autofs_point *ap, autofs_packet_missing_
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if (status)
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fatal(status);
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- status = pthread_mutex_lock(&ma_mutex);
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+ status = pthread_mutex_init(&mt->mutex, NULL);
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+ if (status)
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+ fatal(status);
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+
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+ status = pthread_mutex_lock(&mt->mutex);
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if (status)
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fatal(status);
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@@ -1553,8 +1565,9 @@ int handle_packet_missing_direct(struct autofs_point *ap, autofs_packet_missing_
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send_fail(ap->logopt, ioctlfd, pkt->wait_queue_token);
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close(ioctlfd);
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cache_unlock(mc);
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- mount_mutex_unlock(NULL);
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+ mount_mutex_unlock(mt);
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pending_cond_destroy(mt);
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+ pending_mutex_destroy(mt);
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free_pending_args(mt);
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pthread_setcancelstate(state, NULL);
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return 1;
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@@ -1562,13 +1575,14 @@ int handle_packet_missing_direct(struct autofs_point *ap, autofs_packet_missing_
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cache_unlock(mc);
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pthread_cleanup_push(free_pending_args, mt);
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+ pthread_cleanup_push(pending_mutex_destroy, mt);
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pthread_cleanup_push(pending_cond_destroy, mt);
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- pthread_cleanup_push(mount_mutex_unlock, NULL);
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+ pthread_cleanup_push(mount_mutex_unlock, mt);
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pthread_setcancelstate(state, NULL);
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mt->signaled = 0;
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while (!mt->signaled) {
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- status = pthread_cond_wait(&mt->cond, &ma_mutex);
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+ status = pthread_cond_wait(&mt->cond, &mt->mutex);
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if (status)
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fatal(status);
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}
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@@ -1576,6 +1590,7 @@ int handle_packet_missing_direct(struct autofs_point *ap, autofs_packet_missing_
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pthread_cleanup_pop(1);
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pthread_cleanup_pop(1);
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pthread_cleanup_pop(1);
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+ pthread_cleanup_pop(1);
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return 0;
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}
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diff --git a/daemon/indirect.c b/daemon/indirect.c
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index 11865b3..9f22ec9 100644
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--- a/daemon/indirect.c
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+++ b/daemon/indirect.c
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@@ -40,7 +40,6 @@
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extern pthread_attr_t thread_attr;
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-static pthread_mutex_t ma_mutex = PTHREAD_MUTEX_INITIALIZER;
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static pthread_mutex_t ea_mutex = PTHREAD_MUTEX_INITIALIZER;
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static int unlink_mount_tree(struct autofs_point *ap, struct mnt_list *mnts)
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@@ -651,9 +650,18 @@ static void mount_send_fail(void *arg)
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send_fail(mt->ap->logopt, mt->ap->ioctlfd, mt->wait_queue_token);
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}
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+static void pending_mutex_destroy(void *arg)
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+{
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+ struct pending_args *mt = (struct pending_args *) arg;
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+ int status = pthread_mutex_destroy(&mt->mutex);
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+ if (status)
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+ fatal(status);
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+}
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+
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static void mount_mutex_unlock(void *arg)
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{
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- int status = pthread_mutex_unlock(&ma_mutex);
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+ struct pending_args *mt = (struct pending_args *) arg;
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+ int status = pthread_mutex_unlock(&mt->mutex);
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if (status)
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fatal(status);
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}
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@@ -676,7 +684,7 @@ static void *do_mount_indirect(void *arg)
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args = (struct pending_args *) arg;
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- status = pthread_mutex_lock(&ma_mutex);
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+ status = pthread_mutex_lock(&args->mutex);
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if (status)
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fatal(status);
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@@ -689,7 +697,7 @@ static void *do_mount_indirect(void *arg)
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if (status)
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fatal(status);
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- mount_mutex_unlock(NULL);
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+ mount_mutex_unlock(args);
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pthread_cleanup_push(mount_send_fail, &mt);
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@@ -884,7 +892,11 @@ int handle_packet_missing_indirect(struct autofs_point *ap, autofs_packet_missin
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if (status)
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fatal(status);
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- status = pthread_mutex_lock(&ma_mutex);
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+ status = pthread_mutex_init(&mt->mutex, NULL);
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+ if (status)
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+ fatal(status);
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+
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+ status = pthread_mutex_lock(&mt->mutex);
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if (status)
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fatal(status);
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@@ -901,21 +913,23 @@ int handle_packet_missing_indirect(struct autofs_point *ap, autofs_packet_missin
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if (status) {
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error(ap->logopt, "expire thread create failed");
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send_fail(ap->logopt, ap->ioctlfd, pkt->wait_queue_token);
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- mount_mutex_unlock(NULL);
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+ mount_mutex_unlock(mt);
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pending_cond_destroy(mt);
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+ pending_mutex_destroy(mt);
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free_pending_args(mt);
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pthread_setcancelstate(state, NULL);
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return 1;
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}
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pthread_cleanup_push(free_pending_args, mt);
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+ pthread_cleanup_push(pending_mutex_destroy, mt);
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pthread_cleanup_push(pending_cond_destroy, mt);
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- pthread_cleanup_push(mount_mutex_unlock, NULL);
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+ pthread_cleanup_push(mount_mutex_unlock, mt);
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pthread_setcancelstate(state, NULL);
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mt->signaled = 0;
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while (!mt->signaled) {
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- status = pthread_cond_wait(&mt->cond, &ma_mutex);
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+ status = pthread_cond_wait(&mt->cond, &mt->mutex);
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if (status)
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fatal(status);
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}
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@@ -923,6 +937,7 @@ int handle_packet_missing_indirect(struct autofs_point *ap, autofs_packet_missin
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pthread_cleanup_pop(1);
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pthread_cleanup_pop(1);
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pthread_cleanup_pop(1);
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+ pthread_cleanup_pop(1);
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return 0;
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}
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