[LU-16292] ERROR: modpost: "delete_from_page_cache" undefined

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0, Lustre 2.15.3
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Jian Yu

Description

Kernel v5.16-rc4-44-g452e9e6992fe:

commit 452e9e6992fe058a650c81d01a9982e3faf10278
Author:     Matthew Wilcox (Oracle) <[e-mail]>
AuthorDate: Sun May 9 09:33:42 2021 -0400
Commit:     Matthew Wilcox (Oracle) <[e-mail]>
CommitDate: Tue Jan 4 13:15:33 2022 -0500

    filemap: Add filemap_remove_folio and __filemap_remove_folio
    
    Reimplement __delete_from_page_cache() as a wrapper around
    __filemap_remove_folio() and delete_from_page_cache() as a wrapper
    around filemap_remove_folio().  Remove the EXPORT_SYMBOL as
    delete_from_page_cache() was not used by any in-tree modules.
    Convert page_cache_free_page() into filemap_free_folio().
    
    Signed-off-by: Matthew Wilcox (Oracle) <[e-mail]>
    Reviewed-by: Christoph Hellwig <[e-mail]>
    Reviewed-by: William Kucharski <[e-mail]>

Lustre build failed:

ERROR: modpost: "delete_from_page_cache" [/tmp/rpmbuild-lustre-jenkins-NkFDQasu/BUILD/lustre-2.15.52_64_g2647af4/lustre/llite/lustre.ko] undefined!
ERROR: modpost: "delete_from_page_cache" [/tmp/rpmbuild-lustre-jenkins-NkFDQasu/BUILD/lustre-2.15.52_64_g2647af4/lustre/mdc/mdc.ko] undefined!

Issue Links

• is related to: LU-19113 cfs_delete_from_page_cache() should not unlock page
• is related to: LU-16221 RHEL 9.1 support