Kernel-Log – Was 3.6 bringt (1): Dateisysteme und Storage

Seite 2: Die kleinen Perlen

Die kleinen Perlen

Einige weitere Neuerungen finden sich in der folgenden Liste mit den englischen Commit-Überschriften der jeweiligen Änderung. Die Einträge verlinken genau wie viele Verweise im vorangegangenen Text auf das Webfrontend des von Linus Torvalds gepflegten Git-Zweigs auf Kernel.org. Der über diese Links angezeigte Commit-Kommentar und der darunter ausgegebene Patch liefern zahlreiche weitere Informationen zur jeweiligen Änderung.

Btrfs

[ ] Btrfs: add DEVICE_READY ioctl
[ ] Btrfs: add qgroup inheritance
[ ] Btrfs: add qgroup ioctls
[ ] Btrfs: flush delayed inodes if we're short on space
[ ] Btrfs: improve multi-thread buffer read
[ ] Btrfs: make btrfs's allocation smoothly with preallocation
[ N4] Btrfs: qgroup implementation and prototypes
[ ] Btrfs: qgroup on-disk format
[ ] Btrfs: rework shrink_delalloc
[ 1] Btrfs: rewrite BTRFS_SETGET_FUNCS

File systems

[ D 1] ->atomic_open() prototype change - pass int * instead of bool *
[ ] btrfs: Convert to new freezing mechanism
[ N1] CIFS: Add capability to send SMB2 negotiate message
[ ] CIFS: Add echo request support for SMB2
[ 1] CIFS: Add session setup/logoff capability for SMB2
[ ] CIFS: Add SMB2 credits support
[ N9] CIFS: Add SMB2 status codes
[ ] CIFS: Add SMB2 support for async requests
[ ] CIFS: Add SMB2 support for build_path_to_root
[ 1] CIFS: Add SMB2 support for is_path_accessible
[ ] CIFS: Add SMB2 support for mkdir operation
[ ] CIFS: Add SMB2 support for rmdir
[ 1] CIFS: Add tree connect/disconnect capability for SMB2
[ N1] CIFS: Make demultiplex_thread work with SMB2 code
[ N1] CIFS: Make transport routines work with SMB2
[ N9] CIFS: Map SMB2 status codes to POSIX errors
[ N1] CIFS: Query SMB2 inode info
[ D ] Documentation: Correct s_umount state for freeze_fs/unfreeze_fs
[ D ] Documentation: get rid of write_super
[ D 2] don't pass nameidata to ->create()
[ ] ext4: Convert to new freezing mechanism
[ ] ext4: weed out ext4_write_super
[ ] fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
[ ] fs: add link restriction audit reporting
[ ] fs: cachefiles: add support for large files in filesystem caching
[ 2] fs: Improve filesystem freezing handling
[ D ] fs: make dumpable=2 require fully qualified path
[ ] fs: Remove old freezing mechanism
[ ] fs/sysv: remove another useless write_super call
[ ] fs/sysv: remove useless write_super call
[ ] fs/sysv: stop using write_super and s_dirt
[ ] fs/ufs: get rid of write_super
[ 3] GFS2: Reduce file fragmentation
[ ] hfsplus: get rid of write_super
[ D 2] kill struct opendata
[ ] libceph: add some fine ASCII art
[ ] libceph: support crush tunables
[ D 1] make ->atomic_open() return int
[C 1] NFS: Convert v2 into a module
[C ] NFS: Convert v3 into a module
[C 3] NFS: Convert v4 into a module
[ ] NFS: Fix a number of bugs in the idmapper
[C ] NFS: Simplify NFSv4.1 Kconfig
[ ] proc: do not allow negative offsets on /proc/<pid>/environ
[C ] pstore: Add console log messages support
[C N ] pstore: Add persistent function tracing
[ ] pstore/platform: Make automatic updates interval configurable
[ ] pstore/ram: Add console messages handling
[ D ] pstore/ram: Add ftrace messages handling
[ D ] pstore/ram: Add some more documentation and examples
[ D ] rbd: create pool_id device attribute
[ D 2] stop passing nameidata * to ->d_revalidate()
[ D 5] stop passing nameidata to ->lookup()
[ D 1] vfs: add i_op->atomic_open()
[ D ] vfs: update documentation on ->i_dentry handling
[ 1] xfs: Convert to new freezing code
[ 1] xfs: support discontiguous buffers in the xfs_buf_log_item

Storage

[ ] ahci: Enable SB600 64bit DMA on MSI K9AGM2 (MS-7327) v2
[ DN ] ATA: sata_mv: Add device tree support
[ D 1] blkcg: implement per-blkg request allocation
[ ] dm stripe: optimize chunk_size calculations
[ D ] dm stripe: support for non power of 2 chunksize
[ ] dm: support non power of two target max_io_len
[ D 2] dm thin: add read only and fail io modes
[ ] dm thin: optimize power of two block size
[ ] dm thin: support for non power of 2 pool blocksize
[ ] libata: detect Device Attention support
[ ] libata: tell scsi layer device supports runtime power off
[ ] md/raid1: submit IO from originating thread instead of md thread.
[ D ] mmc: dt: Add reg/interrupts to mmc.txt for clarity.
[ D ] mmc: dt: Deduplicate binding docs by referencing mmc.txt
[ DN ] mmc: sdhci-pxa: Add device tree support
[ 1] MTD: NAND: JZ4740: Multi-bank support with autodetection
[ ] raid5: add a per-stripe lock
[ ] sata_dwc_460ex: support hardreset
[ ] SCSI: bnx2fc: Bumped version to 1.0.12
[ ] SCSI: lpfc 8.3.32: Fix ability to change FCP EQ delay multiplier
[ ] SCSI: lpfc 8.3.32: Update lpfc to version 8.3.32
[ ] SCSI: qla4xxx: Update driver version to 5.02.00-k18
[C ] SCSI: Remove scsi_wait_scan module
[ ] SCSI: virtio-scsi: split scatterlist per target
[C ] UBI: Change the default percentage of reserved PEB

Ein "C" im Bereich zwischen den eckigen Klammern kennzeichnet Commits mit Änderungen an Kconfig-Dateien, welche die Konfigurationsoptionen samt der zugehörigen Hilfetexte enthalten. Mit "I" ausgezeichneten Patches rüsten neue PCI- oder USB-IDs nach; jene mit "D" verändern die dem Kernel beiliegende Dokumentation; Commits mit "N" legen neue Dateien an. Die Zahl vermittelt einen groben Eindruck zur Größe des Patches: Eine "1" kennzeichnet Patches, die inklusive Kommentar zwischen 10 und 20 KByte groß sind; Patches mit einer "9" sind 90 KByte oder größer

Weitere Hintergründe und Informationen rund um Entwicklungen im Linux-Kernel und dessen Umfeld finden sich in den vorangegangenen Kernel-Logs auf heise open. Neue Ausgaben des Kernel-Logs werden auf den Identi.ca- und Twitter-Konten "@kernellog" erwähnt; die englischen, bei den Kollegen von "The H" erscheinenden Übersetzungen auf den Identi.ca- und Twitter-Konten "@kernellog2". Gelegentlich zwitschert der Autor des Kernel-Logs unabhängig davon über einige Kernel-Log-Themen bei Identi.ca und Twitter als "@kernellogauthor".

(thl)