[LU-11140] unassume cl page upon write error

• Type: Bug
• Resolution: Not a Bug
• Priority: Minor
• Severity: 3
• Assignee: Wang Shilong (Inactive)
• Reporter: Wang Shilong (Inactive)

Description

commit b7d38ece00135e74a627a9702d6dadff10c3c89d
LU-9618 clio: Use readahead for partial page write

introduced a regression that we might miss to unassume
cl page when write error happen, this could make
following panic happen:

treError: 18584:0:(cl_page.c:443:cl_page_owner_clear())
ASSERTION( page->cp_owner->ci_owned_nr > 0 ) failed:
[4569800.103708] LustreError:
18584:0:(cl_page.c:443:cl_page_owner_clear()) LBUG

Issue Links

• is related to: LU-9618 Connect readahead to prep_partial_page to improve small (< 1 page) write performance