From: Joel Rosdahl <joel@rosdahl.net>
Date: Mon, 15 Sep 2025 19:26:04 +0000 (+0200)
Subject: fix: Correct saving of current position in fallocate fallback code
X-Git-Tag: v4.12.1~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7e15ad0c71637ba76acf7390db47c27749c32ffa;p=thirdparty%2Fccache.git

fix: Correct saving of current position in fallocate fallback code

(cherry picked from commit af0731a6a2dd3622fd1307ba3baac22dffbfede6)
---

diff --git a/src/ccache/util/file.cpp b/src/ccache/util/file.cpp
index 61950b5b..d8f1cb55 100644
--- a/src/ccache/util/file.cpp
+++ b/src/ccache/util/file.cpp
@@ -239,7 +239,7 @@ fallocate(int fd, size_t new_size)
   // The underlying filesystem does not support the operation so fall back to
   // lseek.
 #endif
-  off_t saved_pos = lseek(fd, 0, SEEK_END);
+  off_t saved_pos = lseek(fd, 0, SEEK_CUR);
   off_t old_size = lseek(fd, 0, SEEK_END);
   if (old_size == -1) {
     int err = errno;