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authorTrond Myklebust <Trond.Myklebust@netapp.com>2010-05-13 12:51:01 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-05-14 15:09:33 -0400
commit8535b2be5181fc3019e4150567ef53210fe3b04f (patch)
treeba366f5304f12876f1e45d3c2b423d12f9ec0c90 /fs/nfs/delegation.c
parent712a4338669d7d57f952244abb608e6ac07e39da (diff)
downloadop-kernel-dev-8535b2be5181fc3019e4150567ef53210fe3b04f.zip
op-kernel-dev-8535b2be5181fc3019e4150567ef53210fe3b04f.tar.gz
NFSv4: Don't use GFP_KERNEL allocations in state recovery
We do not want to have the state recovery thread kick off and wait for a memory reclaim, since that may deadlock when the writebacks end up waiting for the state recovery thread to complete. The safe thing is therefore to use GFP_NOFS in all open, close, delegation return, lock, etc. operations that may be called by the state recovery thread. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/delegation.c')
-rw-r--r--fs/nfs/delegation.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index ea61d26..3016345 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -213,7 +213,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
struct nfs_delegation *freeme = NULL;
int status = 0;
- delegation = kmalloc(sizeof(*delegation), GFP_KERNEL);
+ delegation = kmalloc(sizeof(*delegation), GFP_NOFS);
if (delegation == NULL)
return -ENOMEM;
memcpy(delegation->stateid.data, res->delegation.data,
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