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readahead: a bit of reformatting

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This commit is contained in:
Lennart Poettering 2012-08-25 00:16:19 +02:00
parent cde9cb343a
commit 268ba0ef60
1 changed files with 14 additions and 8 deletions
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22
src/readahead/readahead-common.c
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@ -71,14 +71,16 @@ int fs_on_ssd(const char *p) {
if (major(st.st_dev) == 0)
return false;
if (!(udev = udev_new()))
udev = udev_new();
if (!udev)
return -ENOMEM;
if (!(udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev)))
udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
if (!udev_device)
goto finish;
if ((devtype = udev_device_get_property_value(udev_device, "DEVTYPE")) &&
streq(devtype, "partition"))
devtype = udev_device_get_property_value(udev_device, "DEVTYPE");
if (devtype && streq(devtype, "partition"))
look_at = udev_device_get_parent(udev_device);
else
look_at = udev_device;
@ -87,21 +89,25 @@ int fs_on_ssd(const char *p) {
goto finish;
/* First, try high-level property */
if ((id = udev_device_get_property_value(look_at, "ID_SSD"))) {
id = udev_device_get_property_value(look_at, "ID_SSD");
if (id) {
b = streq(id, "1");
goto finish;
}
/* Second, try kernel attribute */
if ((rotational = udev_device_get_sysattr_value(look_at, "queue/rotational")))
rotational = udev_device_get_sysattr_value(look_at, "queue/rotational");
if (rotational)
if ((b = streq(rotational, "0")))
goto finish;
/* Finally, fallback to heuristics */
if (!(look_at = udev_device_get_parent(look_at)))
look_at = udev_device_get_parent(look_at);
if (!look_at)
goto finish;
if ((model = udev_device_get_sysattr_value(look_at, "model")))
model = udev_device_get_sysattr_value(look_at, "model");
if (model)
b = !!strstr(model, "SSD");
finish: