diff options
| author | Gavin Shan <shangw@linux.vnet.ibm.com> | 2013-07-24 10:25:01 +0800 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-07-24 14:18:49 +1000 |
| commit | ab55d2187da27414f78056810713c92f9a4350c2 (patch) | |
| tree | 49df4aa27f4e6b946ef1c7e892478502a9d7bee6 /arch/powerpc/kernel/eeh.c | |
| parent | 91150af3adf67463c4ca7d72d4fe1a84da37792c (diff) | |
powerpc/eeh: Introdce flag to protect sysfs
The patch introduces flag EEH_DEV_SYSFS to keep track that the sysfs
entries for the corresponding EEH device (then PCI device) has been
added or removed, in order to avoid race condition.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/eeh.c')
| -rw-r--r-- | arch/powerpc/kernel/eeh.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index a5783f1a7a96..ea9414c8088d 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -911,6 +911,7 @@ void eeh_add_device_late(struct pci_dev *dev) eeh_rmv_from_parent_pe(edev); eeh_addr_cache_rmv_dev(edev->pdev); eeh_sysfs_remove_device(edev->pdev); + edev->mode &= ~EEH_DEV_SYSFS; edev->pdev = NULL; dev->dev.archdata.edev = NULL; @@ -1016,6 +1017,7 @@ void eeh_remove_device(struct pci_dev *dev) eeh_addr_cache_rmv_dev(dev); eeh_sysfs_remove_device(dev); + edev->mode &= ~EEH_DEV_SYSFS; } static int proc_eeh_show(struct seq_file *m, void *v) |