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66 lines
2.5 KiB
66 lines
2.5 KiB
5 months ago
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From 7e980efc7103d100fdf889a68b9d7c5e0bb7bf92 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Tue, 26 Mar 2024 12:45:24 +0100
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Subject: lsipc: fix semaphore USED counter
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The code incorrectly counts only with the first item in the linked
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list (due to a typo). It seems rather fragile to use "semds" and
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"semdsp" as variable names in the same code ...
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# lsipc -gs
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Old:
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KEY ID PERMS OWNER NSEMS RESOURCE DESCRIPTION LIMIT USED USE%
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SEMMNI Number of semaphore identifiers 32000 3 0.01%
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SEMMNS Total number of semaphores 1024000000 369 0.00%
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SEMMSL Max semaphores per semaphore set. 32000 - -
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SEMOPM Max number of operations per semop(2) 500 - -
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SEMVMX Semaphore max value 32767 - -
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Fixed:
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KEY ID PERMS OWNER NSEMS RESOURCE DESCRIPTION LIMIT USED USE%
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SEMMNI Number of semaphore identifiers 32000 3 0.01%
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SEMMNS Total number of semaphores 1024000000 156 0.00%
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SEMMSL Max semaphores per semaphore set. 32000 - -
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SEMOPM Max number of operations per semop(2) 500 - -
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SEMVMX Semaphore max value 32767 - -
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Addresses: https://issues.redhat.com/browse/RHEL-34165
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Upstream: http://github.com/util-linux/util-linux/commit/fa45a6e516065f489b1cfb924ec3fc06960e0839
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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sys-utils/lsipc.c | 8 +++++---
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1 file changed, 5 insertions(+), 3 deletions(-)
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diff --git a/sys-utils/lsipc.c b/sys-utils/lsipc.c
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index aa1dd4540..3e2cd639d 100644
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--- a/sys-utils/lsipc.c
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+++ b/sys-utils/lsipc.c
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@@ -712,16 +712,18 @@ static void do_sem(int id, struct lsipc_control *ctl, struct libscols_table *tb)
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static void do_sem_global(struct lsipc_control *ctl, struct libscols_table *tb)
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{
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- struct sem_data *semds, *semdsp;
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+ struct sem_data *semds;
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struct ipc_limits lim;
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int nsems = 0, nsets = 0;
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ipc_sem_get_limits(&lim);
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if (ipc_sem_get_info(-1, &semds) > 0) {
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- for (semdsp = semds; semdsp->next != NULL; semdsp = semdsp->next) {
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+ struct sem_data *p;
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+
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+ for (p = semds; p->next != NULL; p = p->next) {
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++nsets;
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- nsems += semds->sem_nsems;
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+ nsems += p->sem_nsems;
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}
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ipc_sem_free_info(semds);
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}
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--
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2.46.0
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