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fs: make nop_mnt_idmap and invalid_mnt_idmap const

Make both static maps const so they end up in rodata. Any attempt to modify them now faults instead of silently corrupting the initial idmapping. Link: https://patch.msgid.link/20260901-work-idmap-const-v1-27-54ccd48e100b@kernel.org Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Seth Forshee <sforshee@kernel.org> Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

Author Christian Brauner Date Commit Parent 025756ee
+4 -4
2 changed files
Unified Split
+4 -4
2 changed files