ovl: validate superblock in OVL_FS()

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When CONFIG_OVERLAY_FS_DEBUG is enabled add an explicit check to make
sure that OVL_FS() is always used with a valid overlayfs superblock.
Otherwise trigger a WARN_ON_ONCE().

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>

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Andrea Righi 2023-05-21 10:28:13 +02:00 • committed by Amir Goldstein

parent f01d08899f

commit adcd459ff8

1 changed files with 3 additions and 0 deletions

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fs/overlayfs/ovl_entry.h

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