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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-05-13 12:51:06 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-05-14 15:09:35 -0400 |
| commit | 61d5eb2985b3b1d69fd53d7dc9789037c27f8d91 (patch) | |
| tree | 6e73d0e7adcda510ec47d0cd50c57d4461e7fbdf /fs/nfs | |
| parent | 20673406534176ead9b984a84b662928110f77b1 (diff) | |
| download | lwn-61d5eb2985b3b1d69fd53d7dc9789037c27f8d91.tar.gz lwn-61d5eb2985b3b1d69fd53d7dc9789037c27f8d91.zip | |
NFS: Don't run nfs_access_cache_shrinker() when the mask is GFP_NOFS
Both iput() and put_rpccred() might allocate memory under certain
circumstances, so make sure that we don't recurse and deadlock...
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/dir.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 18da8abbece8..58b1f744c91e 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1703,6 +1703,8 @@ int nfs_access_cache_shrinker(int nr_to_scan, gfp_t gfp_mask) struct nfs_inode *nfsi; struct nfs_access_entry *cache; + if ((gfp_mask & GFP_KERNEL) != GFP_KERNEL) + return (nr_to_scan == 0) ? 0 : -1; restart: spin_lock(&nfs_access_lru_lock); list_for_each_entry(nfsi, &nfs_access_lru_list, access_cache_inode_lru) { |