diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 22 | ||||
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 38 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/apple,i2c.yaml | 5 | ||||
| -rw-r--r-- | Documentation/filesystems/f2fs.rst | 6 |
4 files changed, 56 insertions, 15 deletions
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 diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index c1a5cd991f2e..747a55abf494 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1828,6 +1828,27 @@ backtraces on all cpus. Format: 0 | 1 + hash_pointers= + [KNL,EARLY] + By default, when pointers are printed to the console + or buffers via the %p format string, that pointer is + "hashed", i.e. obscured by hashing the pointer value. + This is a security feature that hides actual kernel + addresses from unprivileged users, but it also makes + debugging the kernel more difficult since unequal + pointers can no longer be compared. The choices are: + Format: { auto | always | never } + Default: auto + + auto - Hash pointers unless slab_debug is enabled. + always - Always hash pointers (even if slab_debug is + enabled). + never - Never hash pointers. This option should only + be specified when debugging the kernel. Do + not use on production kernels. The boot + param "no_hash_pointers" is an alias for + this mode. + hashdist= [KNL,NUMA] Large hashes allocated during boot are distributed across NUMA nodes. Defaults on for 64-bit NUMA, off otherwise. @@ -4216,18 +4237,7 @@ no_hash_pointers [KNL,EARLY] - Force pointers printed to the console or buffers to be - unhashed. By default, when a pointer is printed via %p - format string, that pointer is "hashed", i.e. obscured - by hashing the pointer value. This is a security feature - that hides actual kernel addresses from unprivileged - users, but it also makes debugging the kernel more - difficult since unequal pointers can no longer be - compared. However, if this command-line option is - specified, then all normal pointers will have their true - value printed. This option should only be specified when - debugging the kernel. Please do not use on production - kernels. + Alias for "hash_pointers=never". nohibernate [HIBERNATION] Disable hibernation and resume. @@ -6644,6 +6654,10 @@ Documentation/admin-guide/mm/slab.rst. (slub_debug legacy name also accepted for now) + Using this option implies the "no_hash_pointers" + option which can be undone by adding the + "hash_pointers=always" option. + slab_max_order= [MM] Determines the maximum allowed order for slabs. A high setting may cause OOMs due to memory diff --git a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml index 077d2a539c83..fed3e1b8c43f 100644 --- a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml @@ -22,6 +22,11 @@ properties: compatible: items: - enum: + - apple,s5l8960x-i2c + - apple,t7000-i2c + - apple,s8000-i2c + - apple,t8010-i2c + - apple,t8015-i2c - apple,t8103-i2c - apple,t8112-i2c - apple,t6000-i2c diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 8eeb7ea14f61..e5bb89452aff 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -238,9 +238,9 @@ usrjquota=<file> Appoint specified file and type during mount, so that quota grpjquota=<file> information can be properly updated during recovery flow, prjjquota=<file> <quota file>: must be in root directory; jqfmt=<quota type> <quota type>: [vfsold,vfsv0,vfsv1]. -offusrjquota Turn off user journalled quota. -offgrpjquota Turn off group journalled quota. -offprjjquota Turn off project journalled quota. +usrjquota= Turn off user journalled quota. +grpjquota= Turn off group journalled quota. +prjjquota= Turn off project journalled quota. quota Enable plain user disk quota accounting. noquota Disable all plain disk quota option. alloc_mode=%s Adjust block allocation policy, which supports "reuse" |