libfs: massage path_from_stashed() to allow custom stashing behavior

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* Add a callback to struct stashed_operations so it's possible to
  implement custom behavior for pidfs and allow for it to return errors.

* Teach stashed_dentry_get() to handle error pointers.

Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-2-98f3456fd552@kernel.org
Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Christian Brauner 2025-06-18 22:53:36 +02:00

parent 1a1ad73aa1

commit bda3f1608d

2 changed files with 23 additions and 7 deletions

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3

fs/internal.h

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27

fs/libfs.c

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