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Subject[PATCH 4.19 12/52] nfs: NFS_SWAP should depend on SWAP
From: Geert Uytterhoeven <>

commit 474c4f306eefbb21b67ebd1de802d005c7d7ecdc upstream.

If CONFIG_SWAP=n, it does not make much sense to offer the user the
option to enable support for swapping over NFS, as that will still fail
at run time:

# swapon /swap
swapon: /swap: swapon failed: Function not implemented

Fix this by adding a dependency on CONFIG_SWAP.

Fixes: a564b8f0398636ba ("nfs: enable swap on NFS")
Signed-off-by: Geert Uytterhoeven <>
Signed-off-by: Anna Schumaker <>
Signed-off-by: Greg Kroah-Hartman <>

fs/nfs/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -89,7 +89,7 @@ config NFS_V4
config NFS_SWAP
bool "Provide swap over NFS support"
default n
- depends on NFS_FS
+ depends on NFS_FS && SWAP
This option enables swapon to work on files located on NFS mounts.

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