diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/obsolete/automount-tracefs-debugfs | 20 | ||||
| -rw-r--r-- | Documentation/ABI/testing/debugfs-cxl | 2 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-firmware-efi | 7 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 22 |
4 files changed, 50 insertions, 1 deletions
diff --git a/Documentation/ABI/obsolete/automount-tracefs-debugfs b/Documentation/ABI/obsolete/automount-tracefs-debugfs new file mode 100644 index 000000000000..a5196ec78cb5 --- /dev/null +++ b/Documentation/ABI/obsolete/automount-tracefs-debugfs @@ -0,0 +1,20 @@ +What: /sys/kernel/debug/tracing +Date: May 2008 +KernelVersion: 2.6.27 +Contact: linux-trace-kernel@vger.kernel.org +Description: + + The ftrace was first added to the kernel, its interface was placed + into the debugfs file system under the "tracing" directory. Access + to the files were in /sys/kernel/debug/tracing. As systems wanted + access to the tracing interface without having to enable debugfs, a + new interface was created called "tracefs". This was a stand alone + file system and was usually mounted in /sys/kernel/tracing. + + To allow older tooling to continue to operate, when mounting + debugfs, the tracefs file system would automatically get mounted in + the "tracing" directory of debugfs. The tracefs interface was added + in January 2015 in the v4.1 kernel. + + All tooling should now be using tracefs directly and the "tracing" + directory in debugfs should be removed by January 2030. diff --git a/Documentation/ABI/testing/debugfs-cxl b/Documentation/ABI/testing/debugfs-cxl index 12488c14be64..e95e21f131e9 100644 --- a/Documentation/ABI/testing/debugfs-cxl +++ b/Documentation/ABI/testing/debugfs-cxl @@ -20,7 +20,7 @@ Description: visible for devices supporting the capability. -What: /sys/kernel/debug/memX/clear_poison +What: /sys/kernel/debug/cxl/memX/clear_poison Date: April, 2023 KernelVersion: v6.4 Contact: linux-cxl@vger.kernel.org diff --git a/Documentation/ABI/testing/sysfs-firmware-efi b/Documentation/ABI/testing/sysfs-firmware-efi index 5e4d0b27cdfe..927e362d4974 100644 --- a/Documentation/ABI/testing/sysfs-firmware-efi +++ b/Documentation/ABI/testing/sysfs-firmware-efi @@ -36,3 +36,10 @@ Description: Displays the content of the Runtime Configuration Interface Table version 2 on Dell EMC PowerEdge systems in binary format Users: It is used by Dell EMC OpenManage Server Administrator tool to populate BIOS setup page. + +What: /sys/firmware/efi/ovmf_debug_log +Date: July 2025 +Contact: Gerd Hoffmann <kraxel@redhat.com>, linux-efi@vger.kernel.org +Description: Displays the content of the OVMF debug log buffer. The file is + only present in case the firmware supports logging to a memory + buffer. diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index bf03263b9f46..bc0e7fefc39d 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -861,3 +861,25 @@ Description: This is a read-only entry to show the value of sb.s_encoding_flags, SB_ENC_STRICT_MODE_FL 0x00000001 SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002 ============================ ========== + +What: /sys/fs/f2fs/<disk>/reserved_pin_section +Date: June 2025 +Contact: "Chao Yu" <chao@kernel.org> +Description: This threshold is used to control triggering garbage collection while + fallocating on pinned file, so, it can guarantee there is enough free + reserved section before preallocating on pinned file. + By default, the value is ovp_sections, especially, for zoned ufs, the + value is 1. + +What: /sys/fs/f2fs/<disk>/gc_boost_gc_multiple +Date: June 2025 +Contact: "Daeho Jeong" <daehojeong@google.com> +Description: Set a multiplier for the background GC migration window when F2FS GC is + boosted. The range should be from 1 to the segment count in a section. + Default: 5 + +What: /sys/fs/f2fs/<disk>/gc_boost_gc_greedy +Date: June 2025 +Contact: "Daeho Jeong" <daehojeong@google.com> +Description: Control GC algorithm for boost GC. 0: cost benefit, 1: greedy + Default: 1 |