diff options
| author | Brian Behlendorf <[email protected]> | 2012-08-23 15:36:28 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2012-08-27 12:00:55 -0700 |
| commit | cd5ca4b2f86a606aa6ed68341a3672fdde1c9856 (patch) | |
| tree | b5e199851176895ea5adb347103e5f5f61d22eb2 /include | |
| parent | 3e904f40b4f24db61798ca8c8a9027731cf2ced6 (diff) | |
Switch KM_SLEEP to KM_PUSHPAGE
Under certain circumstances the following functions may be called
in a context where KM_SLEEP is unsafe and can result in a deadlocked
system. To avoid this problem the unconditional KM_SLEEPs are
converted to KM_PUSHPAGEs. This will prevent them from attempting
to initiate any I/O during direct reclaim.
Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sys/taskq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sys/taskq.h b/include/sys/taskq.h index a5d9492f2..a73f7703f 100644 --- a/include/sys/taskq.h +++ b/include/sys/taskq.h @@ -62,6 +62,7 @@ typedef struct taskq_ent { */ #define TQ_SLEEP KM_SLEEP #define TQ_NOSLEEP KM_NOSLEEP +#define TQ_PUSHPAGE KM_PUSHPAGE #define TQ_NOQUEUE 0x01000000 #define TQ_NOALLOC 0x02000000 #define TQ_NEW 0x04000000 |