From: Vito Caputo <vcaputo@pengaru.com>
Date: Thu, 25 Nov 2021 23:07:39 +0000 (-0800)
Subject: mmap-cache: add MMapFileDescriptor.cache accessor
X-Git-Tag: v250-rc1~27^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=176bf8b82783b76c85e890610a6c2c6fafb5db6a;p=thirdparty%2Fsystemd.git

mmap-cache: add MMapFileDescriptor.cache accessor

Sometimes we want to reuse an existing MMapFileDescriptor's
cache, but it's a private struct.

This lets us access that pointer if necessary.
---

diff --git a/src/libsystemd/sd-journal/mmap-cache.c b/src/libsystemd/sd-journal/mmap-cache.c
index 4ecaaf23887..124ee3f8c1b 100644
--- a/src/libsystemd/sd-journal/mmap-cache.c
+++ b/src/libsystemd/sd-journal/mmap-cache.c
@@ -591,3 +591,9 @@ void mmap_cache_fd_free(MMapFileDescriptor *f) {
 
         free(f);
 }
+
+MMapCache* mmap_cache_fd_cache(MMapFileDescriptor *f) {
+        assert(f);
+
+        return f->cache;
+}
diff --git a/src/libsystemd/sd-journal/mmap-cache.h b/src/libsystemd/sd-journal/mmap-cache.h
index 28f699dbd13..907ebae843b 100644
--- a/src/libsystemd/sd-journal/mmap-cache.h
+++ b/src/libsystemd/sd-journal/mmap-cache.h
@@ -22,7 +22,8 @@ int mmap_cache_fd_get(
         size_t size,
         struct stat *st,
         void **ret);
-MMapFileDescriptor * mmap_cache_add_fd(MMapCache *m, int fd, int prot);
+MMapFileDescriptor* mmap_cache_add_fd(MMapCache *m, int fd, int prot);
+MMapCache* mmap_cache_fd_cache(MMapFileDescriptor *f);
 void mmap_cache_fd_free(MMapFileDescriptor *f);
 
 void mmap_cache_stats_log_debug(MMapCache *m);