mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-09 07:51:16 -04:00
906d7ce3b5
Add the missing migrate_folio operation to jfs_metapage_aops to fix warnings during memory compaction. These warnings were introduced by commit7ee3647243("migrate: Remove call to ->writepage") which added explicit warnings when filesystems don't implement migrate_folio. System reports following warnings: jfs_metapage_aops does not implement migrate_folio WARNING: CPU: 0 PID: 6870 at mm/migrate.c:955 fallback_migrate_folio mm/migrate.c:953 [inline] WARNING: CPU: 0 PID: 6870 at mm/migrate.c:955 move_to_new_folio+0x70e/0x840 mm/migrate.c:1007 Implement metapage_migrate_folio() which handles both single and multiple metapages per page configurations. [shivankg@amd.com: change comment style] Link: https://lkml.kernel.org/r/1967593d-8084-4a4a-b384-35d5adc54eb4@amd.com [akpm@linux-foundation.org: fix build] [shivankg@amd.com: remove redundant NULL check in __metapage_migrate_folio()] Link: https://lkml.kernel.org/r/a67db238-0ca6-4725-abb2-dc092de87e1b@amd.com Link: https://lkml.kernel.org/r/20250430100150.279751-3-shivankg@amd.com Fixes:35474d52c6("jfs: Convert metapage_writepage to metapage_write_folio") Signed-off-by: Shivank Garg <shivankg@amd.com> Reported-by: syzbot+8bb6fd945af4e0ad9299@syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/67faff52.050a0220.379d84.001b.GAE@google.com Tested-by: syzbot+8bb6fd945af4e0ad9299@syzkaller.appspotmail.com Cc: Alistair Popple <apopple@nvidia.com> Cc: Dave Kleikamp <shaggy@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Donet Tom <donettom@linux.ibm.com> Cc: Jane Chu <jane.chu@oracle.com> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Zi Yan <ziy@nvidia.com> Cc: Dan Carpenter <dan.carpenter@linaro.org> Cc: kernel test robot <lkp@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.