79 lines
2.8 KiB
Diff
79 lines
2.8 KiB
Diff
From b4b66b26620bfaf5818c95d5cffafd85207694e7 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Mon, 9 Sep 2024 17:53:03 +0200
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Subject: [PATCH] shutdown: replace unbounded fsync() with bounded sync_with_progress()
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Let's put a time-out on this syncing.
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Inspired-by: #34289 #34283
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Conflict:1.The file detach-loopback.c/detach-md.c/detach-dm.c all in
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umount.c file in systemd 249.
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2.context adaption:RET_NERRNO is a new macro for return elegant,no
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function difference.And we only need to include shutdown.h once in
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umount.c.
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Reference:https://github.com/systemd/systemd/pull/34330/commits/b4b66b26620bfaf5818c95d5cffafd85207694e7
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---
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src/shutdown/umount.c | 16 ++++++++--------
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1 file changed, 8 insertions(+), 8 deletions(-)
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diff --git a/src/shutdown/umount.c b/src/shutdown/umount.c
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index 9325870..0d5bc7e 100644
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--- a/src/shutdown/umount.c
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+++ b/src/shutdown/umount.c
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@@ -38,6 +38,7 @@
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#include "signal-util.h"
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#include "string-util.h"
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#include "strv.h"
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+#include "shutdown.h"
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#include "umount.h"
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#include "util.h"
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#include "virt.h"
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@@ -411,8 +412,7 @@ static int delete_loopback(const char *device) {
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/* Loopback block devices don't sync in-flight blocks when we clear the fd, hence sync explicitly
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* first */
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- if (fsync(fd) < 0)
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- log_debug_errno(errno, "Failed to sync loop block device %s, ignoring: %m", device);
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+ (void) sync_with_progress(fd);
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if (ioctl(fd, LOOP_CLR_FD, 0) < 0) {
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if (errno == ENXIO) /* Nothing bound, didn't do anything */
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@@ -474,7 +474,6 @@ static int delete_loopback(const char *device) {
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static int delete_dm(MountPoint *m) {
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_cleanup_close_ int fd = -1;
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- int r;
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assert(m);
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assert(major(m->devnum) != 0);
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@@ -484,9 +483,11 @@ static int delete_dm(MountPoint *m) {
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if (fd < 0)
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return -errno;
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- r = fsync_path_at(AT_FDCWD, m->path);
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- if (r < 0)
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- log_debug_errno(r, "Failed to sync DM block device %s, ignoring: %m", m->path);
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+ _cleanup_close_ int block_fd = open(m->path, O_RDONLY|O_CLOEXEC|O_NONBLOCK);
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+ if (block_fd < 0)
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+ log_debug_errno(errno, "Failed to open DM block device %s for syncing, ignoring: %m", m->path);
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+ else
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+ (void) sync_with_progress(block_fd);
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if (ioctl(fd, DM_DEV_REMOVE, &(struct dm_ioctl) {
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.version = {
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@@ -513,8 +514,7 @@ static int delete_md(MountPoint *m) {
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if (fd < 0)
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return -errno;
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- if (fsync(fd) < 0)
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- log_debug_errno(errno, "Failed to sync MD block device %s, ignoring: %m", m->path);
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+ (void) sync_with_progress(fd);
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if (ioctl(fd, STOP_ARRAY, NULL) < 0)
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return -errno;
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--
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2.19.1
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