KernelNewbies:

Linux 4.13 [https://lkml.org/lkml/2017/9/3/155 has been released] on Sun, 3 Sep 2017.

Summary:

TableOfContents()

1. Prominent features

1.1. Asynchronous I/O improvements

The asynchronous I/O implementation in Linux has some deficiencies, one of them is that it unexpectedly blocks in some situations. This release adds a way for asynchronous I/O to return errors instead of blocking.

Recommended LWN article: [https://lwn.net/Articles/724198/ Toward non-blocking asynchronous I/O]

Code: [https://git.kernel.org/linus/fdd2f5b7de2afaa931e5f7bad7bcda35d1f1b479 commit], [https://git.kernel.org/linus/7fc9e4722435cd8459182c4975f48934f2bb1274 commit], [https://git.kernel.org/linus/9830f4be159b29399d107bffb99e0132bc5aedd4 commit], [https://git.kernel.org/linus/b745fafaf70c0a98a2e1e7ac8cb14542889ceb0e commit], [https://git.kernel.org/linus/6be96d3ad34a124450028dabba43f07fe1d0c86d commit], [https://git.kernel.org/linus/a38d1243704f501a4c42de1db1062ff6eba83453 commit], [https://git.kernel.org/linus/03a07c92a9ed9938d828ca7f1d11b8bc63a7bb89 commit], [https://git.kernel.org/linus/728fbc0e10b7f3ce2ee043b32e3453fd5201c055 commit], [https://git.kernel.org/linus/29a5d29ec181ebdc98a26cedbd76ce9870248892 commit], [https://git.kernel.org/linus/edf064e7c6fec3646b06c944a8e35d1a3de5c2c3 commit]

1.2. Ext4 support for a larger number of directory entries

This release adds "largedir", which allows ext4 directories to support over 2 billion directory entries (assuming ~64 byte file names; in practice, users will run into practical performance limits first). This feature adds a "incompatible feature" flag.

Code:[https://git.kernel.org/linus/e08ac99fa2a25626f573cfa377ef3ddedf2cfe8f commit]

1.3. Ext4 support for bigger extended attribute values

This release adds support for extended attribute values up to 64k. It also implements a deduplication feature so that if multiple files have the same xattr value (for example, Windows ACL's stored by Samba), only one copy will be stored on disk for encoding and caching efficiency. This feature adds a "incompatible feature" flag.

Code: [https://git.kernel.org/linus/e50e5129f384ae282adebfb561189cdb19b81cee commit], [https://git.kernel.org/linus/33d201e0277b2d496f66b621f63693ced2da4198 commit], [https://git.kernel.org/linus/0de5983d354adbf1c9fa57eca8b5dd8155132fb1 commit], [https://git.kernel.org/linus/1b917ed8ae0d4ce2ee3d6c56ac6748cd1cd92d4b commit], [https://git.kernel.org/linus/bd3b963b273e247e13979f98812a6e4979b5c1e4 commit], [https://git.kernel.org/linus/9e1ba00161a6f3bec8d4e7912025cbf889878e59 commit], [https://git.kernel.org/linus/ddfa17e4adc4bd19c32216aaa6250dc38b0579df commit], [https://git.kernel.org/linus/1e7d359d710e84b996bd034f4ecc7c721e445603 commit], [https://git.kernel.org/linus/0eefb10758e696616f19a84d8c5f15b9ffc0dccd commit], [https://git.kernel.org/linus/bab79b04999ccbbf59f1693d0783cd6ae27e4278 commit], [https://git.kernel.org/linus/909666933210eb145bc93426ce07f66bf3d1f798 commit], [https://git.kernel.org/linus/990461dd85d57875accc798919e6fe42ab7e294d commit], [https://git.kernel.org/linus/0bd454c04f02e7bb101d8ff510b54826eda4a5f0 commit], [https://git.kernel.org/linus/9bb21cedda7cd69789e1f93d7d918f5ca48ba165 commit], [https://git.kernel.org/linus/f6109100ba8692c677cfdc88af1887a43263e63a commit], [https://git.kernel.org/linus/7cec191894e4e2200d942415c3ebccb146214d26 commit], [https://git.kernel.org/linus/b3155298910c64a312620309f320d26e9461eb19 commit], [https://git.kernel.org/linus/b347e2bcd18eba7ed44659d12e4a39a9b5bdc873 commit], [https://git.kernel.org/linus/65d3000520c50f3c160403a210a7504d789eafca commit], [https://git.kernel.org/linus/c1a5d5f6ab21eb7e6ff8cb99489d9001cf2a2850 commit], [https://git.kernel.org/linus/0421a189bc8cdefa18a34aee962ac0558679b944 commit], [https://git.kernel.org/linus/b6d9029df083c0a9ce1d4eda1480105e635e0d61 commit], [https://git.kernel.org/linus/c07dfcb45877fbc6798fa042bab3c4b85378efd4 commit], [https://git.kernel.org/linus/47387409ee2e09db6d0e79a026a02073dc56bb8c commit], [https://git.kernel.org/linus/02749a4c20827649859bf7e2435f1b238c24f935 commit], [https://git.kernel.org/linus/30a7eb970c3aae6f1b74b2edea896fdca1cbea38 commit], [https://git.kernel.org/linus/dec214d00e0d78a08b947d7dccdfdb84407a9f4d commit], [https://git.kernel.org/linus/7a9ca53aea10ad4677a0f347ad7639c304b80194 commit], [https://git.kernel.org/linus/9c6e7853c531c7cecca8c257bde767d089e5c880 commit], [https://git.kernel.org/linus/daf8328172dffabb4a6b5e1970d6e9628669f51c commit], [https://git.kernel.org/linus/b9fc761ea2d82e910e92f83d01bbbbe1f5e99bfc commit], [https://git.kernel.org/linus/cdb7ee4c632759075866bb8da5fb16b764e66ded commit]

2. Core (various)

3. File systems

4. Memory management

5. Block layer

6. Tracing and perf tool

7. Virtualization

8. Cryptography

9. Security

10. Networking

11. Architectures

12. Drivers

12.1. Graphics

12.2. Storage

12.3. Drivers in the Staging area

12.4. Networking

12.5. Audio

12.6. Tablets, touch screens, keyboards, mouses

12.7. TV tuners, webcams, video capturers

12.8. Universal Serial Bus

12.9. Serial Peripheral Interface (SPI)

12.10. Watchdog

12.11. Serial

12.12. ACPI, EFI, cpufreq, thermal, Power Management

12.13. Real Time Clock (RTC)

12.14. Voltage, current regulators, power capping, power supply

12.15. Pin Controllers (pinctrl)

12.16. Multi Media Card (MMC)

12.17. Memory Technology Devices (MTD)

12.18. Industrial I/O (iio)

12.19. Multi Function Devices (MFD)

12.20. Inter-Integrated Circuit (I2C)

12.21. Hardware monitoring (hwmon)

12.22. General Purpose I/O (gpio)

12.23. Leds

12.24. DMA engines

12.25. Cryptography hardware acceleration

12.26. PCI

12.27. Non-Transparent Bridge (NTB)

12.28. Clock

12.29. Thunderbolt

12.30. Various

13. List of merges

14. Other news sites

KernelNewbies: Linux_4.13 (last edited 2017-10-13 16:44:02 by diegocalleja)