Hi, The following series fixes the generic/285 and generic/436 fstests for huge pages (huge=always). These are tests for llseek (SEEK_HOLE and SEEK_DATA). The implementation to fix above tests is based on iomap per-block tracking for uptodate and dirty states but applied to shmem uptodate flag. The motivation is to avoid any regressions in tmpfs once it gets support for large folios. Testing with kdevops Testing has been performed using fstests with kdevops for the v6.8-rc2 tag. There are currently different profiles supported [1] and for each of these, a baseline of 20 loops has been performed with the following failures for hugepages profiles: generic/080, generic/126, generic/193, generic/245, generic/285, generic/436, generic/551, generic/619 and generic/732. If anyone interested, please find all of the failures in the expunges directory: https://github.com/linux-kdevops/kdevops/tree/master/workflows/fstests/expunges/6.8.0-rc2/tmpfs/unassigned [1] tmpfs profiles supported in kdevops: default, tmpfs_noswap_huge_never, tmpfs_noswap_huge_always, tmpfs_noswap_huge_within_size, tmpfs_noswap_huge_advise, tmpfs_huge_always, tmpfs_huge_within_size and tmpfs_huge_advise. More information: https://github.com/linux-kdevops/kdevops/tree/master/workflows/fstests/expunges/6.8.0-rc2/tmpfs/unassigned All the patches has been tested on top of v6.8-rc2 and rebased onto latest next tag available (next-20240209). Daniel Daniel Gomez (8): shmem: add per-block uptodate tracking for hugepages shmem: move folio zero operation to write_begin() shmem: exit shmem_get_folio_gfp() if block is uptodate shmem: clear_highpage() if block is not uptodate shmem: set folio uptodate when reclaim shmem: check if a block is uptodate before splice into pipe shmem: clear uptodate blocks after PUNCH_HOLE shmem: enable per-block uptodate Pankaj Raghav (1): splice: don't check for uptodate if partially uptodate is impl fs/splice.c | 17 ++- mm/shmem.c | 340 ++++++++++++++++++++++++++++++++++++++++++++++++---- 2 files changed, 332 insertions(+), 25 deletions(-) -- 2.43.0
