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Switch KM_SLEEP to KM_PUSHPAGE

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This warning indicates the incorrect use of KM_SLEEP in a call
path which must use KM_PUSHPAGE to avoid deadlocking in direct
reclaim.  See commit b8d06fca08
for additional details.

  SPL: Fixing allocation for task txg_sync (6093) which
  used GFP flags 0x297bda7c with PF_NOFS set

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #917
This commit is contained in:
Brian Behlendorf
2012-09-04 15:52:36 -07:00
parent 395350c85d
commit 0ef0ff546e
2 changed files with 3 additions and 2 deletions
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include/sys/zfs_context.h
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@@ -391,6 +391,7 @@ typedef struct taskq_ent {
#define TQ_SLEEP KM_SLEEP /* Can block for memory */
#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
#define TQ_PUSHPAGE KM_PUSHPAGE /* Cannot perform I/O */
#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
#define TQ_FRONT 0x08 /* Queue in front */