3546816d4d
- Escape printed device path in machine mode (bsc#1066467) - Add support for NVDIMM devices (bsc#1064446) - Prepare to fix the resizepart command (bsc#1058667) OBS-URL: https://build.opensuse.org/request/show/541560 OBS-URL: https://build.opensuse.org/package/show/Base:System/parted?expand=0&rev=134
68 lines
2.5 KiB
Diff
68 lines
2.5 KiB
Diff
From: "Brian C. Lane" <bcl@redhat.com>
|
|
Date: Thu, 25 May 2017 09:42:23 -0700
|
|
Subject: libparted: Fix udev cookie leak in _dm_resize_partition
|
|
References: bsc#1058667
|
|
Patch-mainline: v3.3
|
|
Git-commit: e7870afe3c13dcc77845d48409daa35e3e42b5fb
|
|
|
|
The function is setting udev cookies, but not using them when waiting
|
|
for the task. This results in leaked cookies, which can eventually
|
|
exhaust the available number of semaphores.
|
|
|
|
'dmsetup udevcookies' will show a cookie remaining afterwards, and 'ipcs -s'
|
|
will show the semaphores in use.
|
|
|
|
Also simplified the exit so that the task is always destroyed and memory
|
|
is all freed in the same path.
|
|
|
|
Resolves: rhbz#1455564
|
|
Acked-by: Sebastian Parschauer <sparschauer@suse.de>
|
|
---
|
|
libparted/arch/linux.c | 14 +++++++-------
|
|
1 file changed, 7 insertions(+), 7 deletions(-)
|
|
|
|
--- a/libparted/arch/linux.c
|
|
+++ b/libparted/arch/linux.c
|
|
@@ -2964,6 +2964,7 @@ _dm_resize_partition (PedDisk* disk, con
|
|
char* vol_name = NULL;
|
|
const char* dev_name = NULL;
|
|
uint32_t cookie = 0;
|
|
+ int rc = 0;
|
|
|
|
/* Get map name from devicemapper */
|
|
struct dm_task *task = dm_task_create (DM_DEVICE_INFO);
|
|
@@ -3004,8 +3005,9 @@ _dm_resize_partition (PedDisk* disk, con
|
|
/* device-mapper uses 512b units, not the device's sector size */
|
|
dm_task_add_target (task, 0, part->geom.length * (disk->dev->sector_size / PED_SECTOR_SIZE_DEFAULT),
|
|
"linear", params);
|
|
- if (!dm_task_set_cookie (task, &cookie, 0))
|
|
- goto err;
|
|
+ /* NOTE: DM_DEVICE_RELOAD doesn't generate udev events, so no cookie is needed (it will freeze).
|
|
+ * DM_DEVICE_RESUME does, so get a cookie and synchronize with udev.
|
|
+ */
|
|
if (dm_task_run (task)) {
|
|
dm_task_destroy (task);
|
|
task = dm_task_create (DM_DEVICE_RESUME);
|
|
@@ -3014,10 +3016,8 @@ _dm_resize_partition (PedDisk* disk, con
|
|
dm_task_set_name (task, vol_name);
|
|
if (!dm_task_set_cookie (task, &cookie, 0))
|
|
goto err;
|
|
- if (dm_task_run (task)) {
|
|
- free (params);
|
|
- free (vol_name);
|
|
- return 1;
|
|
+ if (_dm_task_run_wait (task, cookie)) {
|
|
+ rc = 1;
|
|
}
|
|
}
|
|
err:
|
|
@@ -3026,7 +3026,7 @@ err:
|
|
dm_task_destroy (task);
|
|
free (params);
|
|
free (vol_name);
|
|
- return 0;
|
|
+ return rc;
|
|
}
|
|
|
|
#endif
|