[systemd-devel] [PATCH 1/6] readahead-replay: use posix_fadvise instead of readahead

[harald at redhat.com]

From: Harald Hoyer <harald at redhat.com>

---
 src/readahead-replay.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/readahead-replay.c b/src/readahead-replay.c
index 1f1ec52..c93f147 100644
--- a/src/readahead-replay.c
+++ b/src/readahead-replay.c
@@ -85,8 +85,8 @@ static int unpack_file(FILE *pack) {
                 any = true;
 
                 if (fd >= 0)
-                        if (readahead(fd, b * PAGE_SIZE, (c - b) * PAGE_SIZE) < 0) {
-                                log_warning("readahead() failed: %m");
+                        if (posix_fadvise(fd, b * PAGE_SIZE, (c - b) * PAGE_SIZE, POSIX_FADV_WILLNEED) < 0) {
+                                log_warning("posix_fadvise() failed: %m");
                                 goto finish;
                         }
         }
@@ -96,8 +96,8 @@ static int unpack_file(FILE *pack) {
                  * intended to mean that the whole file shall be
                  * read */
 
-                if (readahead(fd, 0, st.st_size) < 0) {
-                        log_warning("readahead() failed: %m");
+                if (posix_fadvise(fd, 0, st.st_size, POSIX_FADV_WILLNEED) < 0) {
+                        log_warning("posix_fadvise() failed: %m");
                         goto finish;
                 }
         }
-- 
1.7.3