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Upstream-Status: Backport
-Khem 2013/03/28
From b0640287f784a320661f7206c9ade07b99003fd5 Mon Sep 17 00:00:00 2001
From: Auke Kok <auke-jan.h.kok@intel.com>
Date: Tue, 26 Mar 2013 11:13:47 -0700
Subject: [PATCH 03/17] readahead: cleanups
- check for OOM
- no need to use floats and round()
---
Makefile.am | 2 +-
src/readahead/readahead-collect.c | 20 ++++++++++++++------
2 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index 5861976..37c1cc2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2956,7 +2956,7 @@ systemd_readahead_SOURCES = \
systemd_readahead_LDADD = \
libsystemd-shared.la \
libsystemd-daemon.la \
- libudev.la -lm
+ libudev.la
dist_doc_DATA += \
src/readahead/sd-readahead.c \
diff --git a/src/readahead/readahead-collect.c b/src/readahead/readahead-collect.c
index 5d22949..e2fd8df 100644
--- a/src/readahead/readahead-collect.c
+++ b/src/readahead/readahead-collect.c
@@ -68,7 +68,7 @@
*/
static ReadaheadShared *shared = NULL;
-static struct timespec starttime;
+static usec_t starttime;
/* Avoid collisions with the NULL pointer */
#define SECTOR_TO_PTR(s) ULONG_TO_PTR((s)+1)
@@ -260,7 +260,7 @@ static int collect(const char *root) {
goto finish;
}
- clock_gettime(CLOCK_MONOTONIC, &starttime);
+ starttime = now(CLOCK_MONOTONIC);
/* If there's no pack file yet we lower the kernel readahead
* so that mincore() is accurate. If there is a pack file
@@ -459,19 +459,27 @@ static int collect(const char *root) {
free(p);
else {
unsigned long ul;
- struct timespec ts;
+ usec_t entrytime;
struct item *entry;
entry = new0(struct item, 1);
+ if (!entry) {
+ r = log_oom();
+ goto finish;
+ }
ul = fd_first_block(m->fd);
- clock_gettime(CLOCK_MONOTONIC, &ts);
+ entrytime = now(CLOCK_MONOTONIC);
entry->block = ul;
entry->path = strdup(p);
- entry->bin = round((ts.tv_sec - starttime.tv_sec +
- ((ts.tv_nsec - starttime.tv_nsec) / 1000000000.0)) / 2.0);
+ if (!entry->path) {
+ free(entry);
+ r = log_oom();
+ goto finish;
+ }
+ entry->bin = (entrytime - starttime) / 2000000;
if ((k = hashmap_put(files, p, entry)) < 0) {
log_warning("set_put() failed: %s", strerror(-k));
--
1.7.9.5
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