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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/fs/overlayfs/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
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 config OVERLAY_FS
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 	tristate "Overlay filesystem support"
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 	select EXPORTFS
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 	  'lower' filesystem is either hidden or, in the case of directories,
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 	  merged with the 'upper' object.
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-	  For more information see Documentation/filesystems/overlayfs.txt
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+	  For more information see Documentation/filesystems/overlayfs.rst
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 config OVERLAY_FS_REDIRECT_DIR
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 	bool "Overlayfs: turn on redirect directory feature by default"
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 	  If backward compatibility is not an issue, then it is safe and
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 	  recommended to say N here.
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-	  For more information, see Documentation/filesystems/overlayfs.txt
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+	  For more information, see Documentation/filesystems/overlayfs.rst
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 	  If unsure, say Y.
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 	bool "Overlayfs: auto enable inode number mapping"
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 	default n
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 	depends on OVERLAY_FS
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+	depends on 64BIT
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 	help
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 	  If this config option is enabled then overlay filesystems will use
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 	  unused high bits in undelying filesystem inode numbers to map all
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 	  If compatibility with applications that expect 32bit inodes is not an
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 	  issue, then it is safe and recommended to say Y here.
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-	  For more information, see Documentation/filesystems/overlayfs.txt
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+	  For more information, see Documentation/filesystems/overlayfs.rst
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 	  If unsure, say N.
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