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Subject[PATCH] nfs client: kill compile warning on NOMMU machine
Date
On nommu machine such as Blackfin, when compling NFS we got an warning about
nfs_file_mmap() function defined but not used.

This patch kills this warning.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
---
fs/nfs/file.c | 16 ++++++++++++----
1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d319b49..66b8b8e 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -64,11 +64,7 @@ const struct file_operations nfs_file_operations = {
.write = do_sync_write,
.aio_read = nfs_file_read,
.aio_write = nfs_file_write,
-#ifdef CONFIG_MMU
.mmap = nfs_file_mmap,
-#else
- .mmap = generic_file_mmap,
-#endif
.open = nfs_file_open,
.flush = nfs_file_flush,
.release = nfs_file_release,
@@ -294,6 +290,7 @@ nfs_file_splice_read(struct file *filp, loff_t *ppos,
return res;
}

+#ifdef CONFIG_MMU
static int
nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
{
@@ -312,6 +309,17 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
}
return status;
}
+#else
+static int
+nfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ /* Kill warning: 'nfs_file_vm_ops' defined but not used */
+ struct vm_operations_struct *vm_ops;
+ vm_ops = &nfs_file_vm_ops;
+
+ return generic_file_mmap(file, vma);
+}
+#endif

/*
* Flush any dirty pages for this process, and check for write errors.
--
1.5.6.3

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