smb: client: add drop_dir_cache module parameter to invalidate cached dirents

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Add write-only /sys/module/cifs/parameters/drop_dir_cache. Writing a
non-zero value iterates all tcons and calls invalidate_all_cached_dirs()
to drop cached directory entries. This is useful to force a dirent cache
drop across mounts for debugging and testing purpose.

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

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Bharath SM 2025-09-02 01:16:00 +05:30 • committed by Steve French

parent ac3ad9845b

commit dde6667fa3

1 changed files with 38 additions and 0 deletions

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fs/smb/client/cifsfs.c

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