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| author | Lennart Poettering <lennart@poettering.net> | 2020-05-27 17:22:46 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2020-05-29 15:41:31 +0200 |
| commit | d197c403b2b71b6ab9b8cc9f3a171064b615018c (patch) | |
| tree | feead96b6349ad5dde5d2058fd9b6dec94b28f46 | |
| parent | efi: as extra paranoia NUL terminate UTF-16 strings with three NUL bytes (diff) | |
| download | systemd-d197c403b2b71b6ab9b8cc9f3a171064b615018c.tar.xz systemd-d197c403b2b71b6ab9b8cc9f3a171064b615018c.zip | |
efi: explicitly update mtime of EFI variables when changing them
| -rw-r--r-- | src/basic/efivars.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/basic/efivars.c b/src/basic/efivars.c index 496b5d4d44..16982e4784 100644 --- a/src/basic/efivars.c +++ b/src/basic/efivars.c @@ -231,6 +231,14 @@ int efi_set_variable( if (r < 0) goto finish; + /* For some reason efivarfs doesn't update mtime automatically. Let's do it manually then. This is + * useful for processes that cache EFI variables to detect when changes occurred. */ + if (futimens(fd, (struct timespec[2]) { + { .tv_nsec = UTIME_NOW }, + { .tv_nsec = UTIME_NOW } + }) < 0) + log_debug_errno(errno, "Failed to update mtime/atime on %s, ignoring: %m", p); + r = 0; finish: |