fs/ntfs3: Update inode->i_mapping->a_ops on compression state

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Update inode->i_mapping->a_ops when the compression state changes to
ensure correct address space operations.
Clear ATTR_FLAG_SPARSED/FILE_ATTRIBUTE_SPARSE_FILE when enabling
compression to prevent flag conflicts.

v2:
Additionally, ensure that all dirty pages are flushed and concurrent access
to the page cache is blocked.

Fixes: 6b39bfaeec ("fs/ntfs3: Add support for the compression attribute")
Reported-by: Kun Hu <huk23@m.fudan.edu.cn>, Jiaji Qin <jjtan24@m.fudan.edu.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

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Konstantin Komarov 2025-01-30 17:03:41 +03:00

parent ff35592644

commit b432163ebd

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3 changed files with 26 additions and 5 deletions

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3

fs/ntfs3/attrib.c

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22

fs/ntfs3/file.c

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6

fs/ntfs3/frecord.c

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