From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
---
fs/nfs/nfs4proc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 60501e10625d..a4e33e519f6e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5035,12 +5035,18 @@ static inline ssize_t nfs4_read_cached_acl(struct inode *inode, char *buf, size_
return ret;
}
+/*
+ * We don't cache ACLs over a certain size. I don't know if we have any
+ * real reason for this policy:
+ */
+#define NFS4_MAX_CACHED_ACL PAGE_SIZE
+
static void nfs4_write_cached_acl(struct inode *inode, struct page **pages, size_t pgbase, size_t acl_len)
{
struct nfs4_cached_acl *acl;
size_t buflen = sizeof(*acl) + acl_len;
- if (buflen <= PAGE_SIZE) {
+ if (buflen <= NFS4_MAX_CACHED_ACL) {
acl = kmalloc(buflen, GFP_KERNEL);
if (acl == NULL)
goto out;
--
2.9.3
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