xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/eeh: Introdce flag to protect sysfs

Browse Source 
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>
This commit is contained in:
Gavin Shan
2013-07-24 10:25:01 +08:00
committed by Benjamin Herrenschmidt
parent 91150af3ad
commit ab55d2187d
5 changed files with 22 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/include/asm/eeh.h
View File

@@ -90,6 +90,8 @@ struct eeh_pe {
#define EEH_DEV_IRQ_DISABLED (1 << 3) /* Interrupt disabled */
#define EEH_DEV_DISCONNECTED (1 << 4) /* Removing from PE */
#define EEH_DEV_SYSFS (1 << 8) /* Sysfs created */
struct eeh_dev {
int mode; /* EEH mode */
int class_code; /* Class code of the device */