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autofs-5.1.3 - reset master map list on startup retry
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From: Ian Kent <raven@themaw.net>
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On autofs startup if automount thinks the master map read failed
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for some reason it retries the read after waiting for a fairly
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short delay.
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It should be ok to retry with the entries seen so far but there
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may be cases where that causes problems so release any existing
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master map entries before retrying.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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daemon/automount.c | 25 +++++++++++++++++++++++++
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2 files changed, 26 insertions(+)
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--- autofs-5.0.7.orig/CHANGELOG
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+++ autofs-5.0.7/CHANGELOG
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@@ -254,6 +254,7 @@
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- revert fix argc off by one in mount_autofs.c.
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- allow dot in OPTIONSTR value lexer pattern.
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- handle additional nfs versions in mount_nfs.c.
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+- reset master map list on startup retry.
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25/07/2012 autofs-5.0.7
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=======================
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--- autofs-5.0.7.orig/daemon/automount.c
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+++ autofs-5.0.7/daemon/automount.c
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@@ -2099,6 +2099,27 @@ static void remove_empty_args(char **arg
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*argc = j;
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}
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+static void do_master_list_reset(struct master *master)
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+{
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+ struct list_head *head, *p;
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+
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+ master_mutex_lock();
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+
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+ head = &master->mounts;
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+ list_for_each(p, head) {
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+ struct master_mapent *entry;
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+
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+ entry = list_entry(p, struct master_mapent, list);
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+
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+ if (!list_empty(&entry->list))
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+ list_del(&entry->list);
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+ master_free_mapent_sources(entry, 1);
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+ master_free_mapent(entry);
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+ }
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+
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+ master_mutex_unlock();
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+}
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+
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static int do_master_read_master(struct master *master, int wait)
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{
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sigset_t signalset;
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@@ -2118,6 +2139,8 @@ static int do_master_read_master(struct
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while (1) {
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struct timespec t = { retry_wait, 0 };
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+ do_master_list_reset(master);
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+
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age = time(NULL);
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if (master_read_master(master, age, 0)) {
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ret = 1;
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@@ -2586,6 +2609,8 @@ int main(int argc, char *argv[])
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* Failed to read master map, continue with what
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* we have anyway.
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*/
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+ do_master_list_reset(master_list);
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+ age = time(NULL);
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master_read_master(master_list, age, 1);
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}
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}
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