X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Freadahead-replay.c;h=cb93fae806e7cbd3fd552b3ab4d10e230ec6e008;hp=a5a2936b3e816ce751ddb30d9160d36781af50bc;hb=f015eca2a2f4186208930cf23196967ed425e2c9;hpb=6624768c9c39ab409edebe07cb06ecd93cc6f3ed

diff --git a/src/readahead-replay.c b/src/readahead-replay.c
index a5a2936b3..cb93fae80 100644
--- a/src/readahead-replay.c
+++ b/src/readahead-replay.c
@@ -44,6 +44,8 @@
 
 static off_t arg_file_size_max = READAHEAD_FILE_SIZE_MAX;
 
+static ReadaheadShared *shared = NULL;
+
 static int unpack_file(FILE *pack) {
         char fn[PATH_MAX];
         int r = 0, fd = -1;
@@ -89,8 +91,8 @@ 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;
                         }
         }
@@ -100,8 +102,8 @@ 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;
                 }
         }
@@ -114,7 +116,7 @@ finish:
 }
 
 static int replay(const char *root) {
-        FILE *pack;
+        FILE *pack = NULL;
         char line[LINE_MAX];
         int r = 0;
         char *pack_fn = NULL, c;
@@ -143,6 +145,8 @@ static int replay(const char *root) {
                 goto finish;
         }
 
+        posix_fadvise(fileno(pack), 0, 0, POSIX_FADV_WILLNEED);
+
         if ((inotify_fd = open_inotify()) < 0) {
                 r = inotify_fd;
                 goto finish;
@@ -338,6 +342,12 @@ int main(int argc, char*argv[]) {
                 return 0;
         }
 
+        if (!(shared = shared_get()))
+                return 1;
+
+        shared->replay = getpid();
+        __sync_synchronize();
+
         if (replay(optind < argc ? argv[optind] : "/") < 0)
                 return 1;