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fast_commit mode. In addition, thanks to Mauricio for fixing a race where mmap'ed pages that are being changed in parallel with a data=journal transaction commit could result in bad checksums in the failure that could cause journal replays to fail. Also notable is Ritesh's buffered write optimization which can result in significant improvements on parallel write workloads. (The kernel test robot reported a 330.6% improvement on fio.write_iops on a 96 core system using DAX[1].) Besides that, we have the usual miscellaneous cleanups and bug fixes. [1] https://lore.kernel.org/r/20200925071217.GO28663@shao2-debian -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAl+RuCQACgkQ8vlZVpUN gaNebgf/dUnQp5SG2/2zczSDqr+f8DOiuAdn9I54BAr2HwdkMbbiktKfenfpu41k SMGNV6rYSs248dWFtkzM7C2T1dpGrdAe2OCYrU6HPR/xoZlx/RcDz39u7nXBDeup NV7RnPgIzCAGZXCOY/Zu1k88T1eosLRTIWvIcNOspt75MC0vJ8GSmkx1bVEUsv8w Uq6T0OREfDiLJpEZxtfbl3o+8Rfs82t3Soj4pwN8ESL/RWBTT8PlwAGhIcdjnHy/ lsgT35IrY4OL6Eas9msUmFYrWhO6cW21kWOugYALQXZ3ny4A+r5nZZcY/wCq01NX J2Z02ZiMTZUmFFREbtc0eJukXWEVvA== =14K9 -----END PGP SIGNATURE----- Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "The siginificant new ext4 feature this time around is Harshad's new fast_commit mode. In addition, thanks to Mauricio for fixing a race where mmap'ed pages that are being changed in parallel with a data=journal transaction commit could result in bad checksums in the failure that could cause journal replays to fail. Also notable is Ritesh's buffered write optimization which can result in significant improvements on parallel write workloads. (The kernel test robot reported a 330.6% improvement on fio.write_iops on a 96 core system using DAX) Besides that, we have the usual miscellaneous cleanups and bug fixes" Link: https://lore.kernel.org/r/20200925071217.GO28663@shao2-debian * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (46 commits) ext4: fix invalid inode checksum ext4: add fast commit stats in procfs ext4: add a mount opt to forcefully turn fast commits on ext4: fast commit recovery path jbd2: fast commit recovery path ext4: main fast-commit commit path jbd2: add fast commit machinery ext4 / jbd2: add fast commit initialization ext4: add fast_commit feature and handling for extended mount options doc: update ext4 and journalling docs to include fast commit feature ext4: Detect already used quota file early jbd2: avoid transaction reuse after reformatting ext4: use the normal helper to get the actual inode ext4: fix bs < ps issue reported with dioread_nolock mount opt ext4: data=journal: write-protect pages on j_submit_inode_data_buffers() ext4: data=journal: fixes for ext4_page_mkwrite() jbd2, ext4, ocfs2: introduce/use journal callbacks j_submit|finish_inode_data_buffers() jbd2: introduce/export functions jbd2_journal_submit|finish_inode_data_buffers() ext4: introduce ext4_sb_bread_unmovable() to replace sb_bread_unmovable() ext4: use ext4_sb_bread() instead of sb_bread() ...