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-rw-r--r--fontconfig/src/fccache.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fontconfig/src/fccache.c b/fontconfig/src/fccache.c
index db7561f9e..343ece9a7 100644
--- a/fontconfig/src/fccache.c
+++ b/fontconfig/src/fccache.c
@@ -609,6 +609,9 @@ FcDirCacheMapFd (int fd, struct stat *fd_stat, struct stat *dir_stat)
{
#if defined(HAVE_MMAP) || defined(__CYGWIN__)
cache = mmap (0, fd_stat->st_size, PROT_READ, MAP_SHARED, fd, 0);
+#ifdef HAVE_POSIX_FADVISE
+ posix_fadvise (fd, 0, fd_stat->st_size, POSIX_FADV_WILLNEED);
+#endif
if (cache == MAP_FAILED)
cache = NULL;
#elif defined(_WIN32)