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authorTrond Myklebust <Trond.Myklebust@netapp.com>2010-12-01 14:17:06 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-12-02 09:58:00 -0500
commit11de3b11e08cac26d59e88efaf4e316701883552 (patch)
treee4cc282e692560897c42c5fbc8df227d5da669d4 /include
parent6072d13c429373c5d63b69dadbbef40a9b035552 (diff)
NFS: Fix a memory leak in nfs_readdir
We need to ensure that the entries in the nfs_cache_array get cleared when the page is removed from the page cache. To do so, we use the freepage address_space operation. Change nfs_readdir_clear_array to use kmap_atomic(), so that the function can be safely called from all contexts. Finally, modify the cache_page_release helper to call nfs_readdir_clear_array directly, when dealing with an anonymous page from 'uncached_readdir'. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nfs_fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index c66fdb7d6998..29d504d5d1c3 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -401,6 +401,7 @@ extern const struct inode_operations nfs3_file_inode_operations;
#endif /* CONFIG_NFS_V3 */
extern const struct file_operations nfs_file_operations;
extern const struct address_space_operations nfs_file_aops;
+extern const struct address_space_operations nfs_dir_aops;
static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
{