46 lines
1.7 KiB
Diff
46 lines
1.7 KiB
Diff
From 1a1d36c2e421f496b52f5e607c1d5bcfa61df2e5 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Tue, 5 Oct 2021 10:32:56 +0200
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Subject: [PATCH 5/9] rm-rf: optionally fsync() after removing directory tree
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Conflict:modify files in basic instead of shared
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Reference:https://github.com/systemd/systemd/commit/bdfe7ada0d4d66e6d6e65f2822acbb1ec230f9c2
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(cherry picked from commit bdfe7ada0d4d66e6d6e65f2822acbb1ec230f9c2)
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(cherry picked from commit 2426beacca09d84091759be45b25c88116302184)
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(cherry picked from commit 0e180f8e9c25c707b0465ad1b9447a4360f785f1)
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---
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src/basic/rm-rf.c | 3 +++
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src/basic/rm-rf.h | 1 +
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2 files changed, 4 insertions(+)
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diff --git a/src/basic/rm-rf.c b/src/basic/rm-rf.c
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index 8e3eb59..4e46654 100644
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--- a/src/basic/rm-rf.c
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+++ b/src/basic/rm-rf.c
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@@ -251,6 +251,9 @@ int rm_rf_children(
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ret = r;
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}
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+ if (FLAGS_SET(flags, REMOVE_SYNCFS) && syncfs(dirfd(d)) < 0 && ret >= 0)
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+ ret = -errno;
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+
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return ret;
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}
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diff --git a/src/basic/rm-rf.h b/src/basic/rm-rf.h
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index 15f7a87..1ecd552 100644
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--- a/src/basic/rm-rf.h
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+++ b/src/basic/rm-rf.h
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@@ -12,6 +12,7 @@ typedef enum RemoveFlags {
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REMOVE_SUBVOLUME = 1 << 3, /* Drop btrfs subvolumes in the tree too */
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REMOVE_MISSING_OK = 1 << 4, /* If the top-level directory is missing, ignore the ENOENT for it */
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REMOVE_CHMOD = 1 << 5, /* chmod() for write access if we cannot delete something */
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+ REMOVE_SYNCFS = 1 << 6, /* syncfs() the root of the specified directory after removing everything in it */
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} RemoveFlags;
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int rm_rf_children(int fd, RemoveFlags flags, const struct stat *root_dev);
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--
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2.23.0
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