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systemd/1002-re-enable-by_path-links-for-ata-devices.patch
Stephan Kulow 48af67da26 Accepting request 147673 from Base:System
- udev: path_id - handle Hyper-V devices
  add: 1008-udev-path_id-handle-Hyper-V-devices.patch
- keymap: Update the list of Samsung Series 9 models
  add: 1009-keymap-Update-the-list-of-Samsung-Series-9-models.patch
- keymap: Add Samsung 700T
  add: 1010-keymap-Add-Samsung-700T.patch
- libudev: avoid leak during realloc failure
  add: 1011-libudev-avoid-leak-during-realloc-failure.patch
- libudev: do not resolve $attr{device} symlinks
  add: 1012-libudev-do-not-resolve-attr-device-symlinks.patch
- libudev: validate 'udev' argument to udev_enumerate_new()
  add: 1013-libudev-validate-udev-argument-to-udev_enumerate_new.patch
- udev: fix whitespace
  add: 1014-udev-fix-whitespace.patch
- udev: properly handle symlink removal by 'change' event
  add: 1015-udev-properly-handle-symlink-removal-by-change-event.patch
- udev: builtin - do not fail builtin initialization if one of 
  them returns an error
  add: 1016-udev-builtin-do-not-fail-builtin-initialization-if-o.patch
- udev: use usec_t and now()
  add: 1017-udev-use-usec_t-and-now.patch 

  closing an non-existent dbus connection and getting assertion 
  failures. 
- udev: path_id - handle Hyper-V devices
  add: 1008-udev-path_id-handle-Hyper-V-devices.patch
- keymap: Update the list of Samsung Series 9 models
  add: 1009-keymap-Update-the-list-of-Samsung-Series-9-models.patch
- keymap: Add Samsung 700T
  add: 1010-keymap-Add-Samsung-700T.patch

OBS-URL: https://build.opensuse.org/request/show/147673
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/systemd?expand=0&rev=120
2013-01-10 14:20:01 +00:00

109 lines
3.7 KiB
Diff

Index: systemd-195/src/udev/udev-builtin-path_id.c
===================================================================
--- systemd-195.orig/src/udev/udev-builtin-path_id.c
+++ systemd-195/src/udev/udev-builtin-path_id.c
@@ -302,6 +302,85 @@ out:
return hostdev;
}
+static struct udev_device *handle_ata(struct udev_device *parent, char **path)
+{
+ struct udev_device *hostdev;
+ int host, bus, target, lun;
+ const char *name;
+ char *base;
+ char *pos;
+ DIR *dir;
+ struct dirent *dent;
+ int basenum, len;
+
+ hostdev = udev_device_get_parent_with_subsystem_devtype(parent, "scsi", "scsi_host");
+ if (hostdev == NULL)
+ return NULL;
+
+ name = udev_device_get_sysname(parent);
+ if (sscanf(name, "%d:%d:%d:%d", &host, &bus, &target, &lun) != 4)
+ return NULL;
+
+ /* rebase ata offset to get the local relative number */
+ basenum = -1;
+ base = strdup(udev_device_get_syspath(hostdev));
+ if (base == NULL)
+ return NULL;
+ pos = strrchr(base, '/');
+ if (pos == NULL) {
+ parent = NULL;
+ goto out;
+ }
+ pos[0] = '\0';
+ len = strlen(base) - 5;
+ if (len <= 0) {
+ parent = NULL;
+ goto out;
+ }
+ base[len] = '\0';
+ dir = opendir(base);
+ if (dir == NULL) {
+ parent = NULL;
+ goto out;
+ }
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ char *rest;
+ int i;
+
+ if (dent->d_name[0] == '.')
+ continue;
+ if (dent->d_type != DT_DIR && dent->d_type != DT_LNK)
+ continue;
+ if (strncmp(dent->d_name, "ata", 3) != 0)
+ continue;
+ i = strtoul(&dent->d_name[3], &rest, 10);
+
+ /* ata devices start with 1, so decrease by 1 if i is bigger then 0 */
+ if (i > 0)
+ i--;
+ if (rest[0] != '\0')
+ continue;
+ /*
+ * find the smallest number; the host really needs to export its
+ * own instance number per parent device; relying on the global host
+ * enumeration and plainly rebasing the numbers sounds unreliable
+ */
+ if (basenum == -1 || i < basenum)
+ basenum = i;
+ }
+ closedir(dir);
+ if (basenum == -1) {
+ parent = NULL;
+ goto out;
+ }
+ host -= basenum;
+
+ path_prepend(path, "scsi-%u:%u:%u:%u", host, bus, target, lun);
+out:
+ free(base);
+ return hostdev;
+}
+
static struct udev_device *handle_scsi(struct udev_device *parent, char **path)
{
const char *devtype;
@@ -338,16 +417,8 @@ static struct udev_device *handle_scsi(s
goto out;
}
- /*
- * We do not support the ATA transport class, it creates duplicated link
- * names as the fake SCSI host adapters are all separated, they are all
- * re-based as host == 0. ATA should just stop faking two duplicated
- * hierarchies for a single topology and leave the SCSI stuff alone;
- * until that happens, there are no by-path/ links for ATA devices behind
- * an ATA transport class.
- */
if (strstr(name, "/ata") != NULL) {
- parent = NULL;
+ parent = handle_ata(parent, path);
goto out;
}