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SUSE:SLE-12-SP5:Update
autofs.5460
autofs-5-1-1-use-monotonic-clock-for-indirect-m...
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File autofs-5-1-1-use-monotonic-clock-for-indirect-mount-condition.patch of Package autofs.5460
From: Yu Ning <ning.yu@ubuntu.com> Subject: autofs-5.1.1 - use monotonic clock for indirect mount condition Git-repo: git://git.kernel.org/pub/scm/linux/storage/autofs/autofs.git Git-commit: 5e73b84d5260d9a7c1b8c045c4674dbc30ab1c2f Patch-mainline: 5.1.2 References: bsc#1046493 The time returned by gettimeofday() is affected by discontinuous jumps in the system time, so it causes an issue that autofs may not auto unmount a mount point if system time is manually changed by the system administrator. To fix the issue we need to convert to using a monotonic clock source instead of the clock source used by gettimeofday(). Change the indirect mount and expire thread creation to use a monotonic clock source. Signed-off-by: Yu Ning <ning.yu@ubuntu.com> Signed-off-by: Ian Kent <raven@themaw.net> Acked-by: Jeff Mahoney <jeffm@suse.com> --- daemon/indirect.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) --- a/daemon/indirect.c +++ b/daemon/indirect.c @@ -638,7 +638,6 @@ int handle_packet_expire_indirect(struct char buf[MAX_ERR_BUF]; pthread_t thid; struct timespec wait; - struct timeval now; int status, state; pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &state); @@ -656,9 +655,7 @@ int handle_packet_expire_indirect(struct return 1; } - status = pthread_cond_init(&mt->cond, NULL); - if (status) - fatal(status); + pending_cond_init(mt); status = pthread_mutex_init(&mt->mutex, NULL); if (status) @@ -693,9 +690,8 @@ int handle_packet_expire_indirect(struct mt->signaled = 0; while (!mt->signaled) { - gettimeofday(&now, NULL); - wait.tv_sec = now.tv_sec + 2; - wait.tv_nsec = now.tv_usec * 1000; + clock_gettime(CLOCK_MONOTONIC, &wait); + wait.tv_sec += 2; status = pthread_cond_timedwait(&mt->cond, &mt->mutex, &wait); if (status && status != ETIMEDOUT) fatal(status); @@ -797,7 +793,6 @@ int handle_packet_missing_indirect(struc char buf[MAX_ERR_BUF]; struct pending_args *mt; struct timespec wait; - struct timeval now; struct mapent *me; int status, state; @@ -843,9 +838,7 @@ int handle_packet_missing_indirect(struc } memset(mt, 0, sizeof(struct pending_args)); - status = pthread_cond_init(&mt->cond, NULL); - if (status) - fatal(status); + pending_cond_init(mt); status = pthread_mutex_init(&mt->mutex, NULL); if (status) @@ -886,9 +879,8 @@ int handle_packet_missing_indirect(struc mt->signaled = 0; while (!mt->signaled) { - gettimeofday(&now, NULL); - wait.tv_sec = now.tv_sec + 2; - wait.tv_nsec = now.tv_usec * 1000; + clock_gettime(CLOCK_MONOTONIC, &wait); + wait.tv_sec += 2; status = pthread_cond_timedwait(&mt->cond, &mt->mutex, &wait); if (status && status != ETIMEDOUT) fatal(status);
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