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ntfs: respect per-file chmod mode over mount masks

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fmask and dmask provide the default permissions for files without WSL
metadata. Once chmod stores a mode in $LXMOD, however, that per-file mode
must take precedence so selected files can retain permissions such as
execute across remounts.

Record whether $LXMOD was found while loading an inode and apply the mount
masks only when it is absent. Do not remask the in-memory mode after
setattr persists it. Continue loading $LXMOD even when optional $LXUID or
$LXGID metadata is missing, since chmod may create only $LXMOD.

Fixes: fc053f05ca ("ntfs: add reparse and ea operations")
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Namjae Jeon 2026-07-27 18:07:15 +09:00
commit 4d730a4dd7
5 changed files with 24 additions and 28 deletions
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