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8afa0a7367ovl_whiteout() relies on the workdir i_rwsem to provide exclusive access to ofs->whiteout which it manipulates. Rather than depending on this, add a new mutex, "whiteout_lock" to explicitly provide the required locking. Use guard(mutex) for this so that we can return without needing to explicitly unlock. Then take the lock on workdir only when needed - to lookup the temp name and to do the whiteout or link. Signed-off-by: NeilBrown <neil@brown.name> Link: https://lore.kernel.org/20250716004725.1206467-19-neil@brown.name Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
1072 lines
27 KiB
1072 lines
27 KiB