16 qpr2 muzel

Documentation/ABI/testing/sysfs-fs-f2fs

@@ -867,3 +867,18 @@ Description:	This threshold is used to control triggering garbage collection whi
 		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>/effective_lookup_mode
+Date:		August 2025
+Contact:	"Daniel Lee" <[email protected]>
+Description:
+		This is a read-only entry to show the effective directory lookup mode
+		F2FS is currently using for casefolded directories.
+		This considers both the "lookup_mode" mount option and the on-disk
+		encoding flag, SB_ENC_NO_COMPAT_FALLBACK_FL.
+
+		Possible values are:
+		- "perf": Hash-only lookup.
+		- "compat": Hash-based lookup with a linear search fallback enabled
+		- "auto:perf": lookup_mode is auto and fallback is disabled on-disk
+		- "auto:compat": lookup_mode is auto and fallback is enabled on-disk

Documentation/admin-guide/cgroup-v2.rst

@@ -1246,17 +1246,10 @@ PAGE_SIZE multiple when read back.
 	This is a simple interface to trigger memory reclaim in the
 	target cgroup.
 
-	This file accepts a single key, the number of bytes to reclaim.
-	No nested keys are currently supported.
-
 	Example::
 
 	  echo "1G" > memory.reclaim
 
-	The interface can be later extended with nested keys to
-	configure the reclaim behavior. For example, specify the
-	type of memory to reclaim from (anon, file, ..).
-
 	Please note that the kernel can over or under reclaim from
 	the target cgroup. If less bytes are reclaimed than the
 	specified amount, -EAGAIN is returned.
@@ -1268,6 +1261,17 @@ PAGE_SIZE multiple when read back.
 	This means that the networking layer will not adapt based on
 	reclaim induced by memory.reclaim.
 
+The following nested keys are defined.
+
+	  ==========            ================================
+	  swappiness            Swappiness value to reclaim with
+	  ==========            ================================
+
+	Specifying a swappiness value instructs the kernel to perform
+	the reclaim with that swappiness value. Note that this has the
+	same semantics as vm.swappiness applied to memcg reclaim with
+	all the existing limitations and potential future extensions.
+
   memory.peak
 	A read-only single value file which exists on non-root
 	cgroups.

Documentation/admin-guide/kernel-parameters.txt

@@ -2655,6 +2655,11 @@
 			(enabled). Disable by KVM if hardware lacks support
 			for NPT.
 
+	kvm-arm.hyp_lm_size_mb=
+			[KVM,ARM,EARLY] Maximum amount of contiguous memory mappable in
+			the pKVM hypervisor linear map, in MB. Any attempt to map more
+			memory than this into pKVM stage-1 at run-time may be fatal.
+
 	kvm-arm.mode=
 			[KVM,ARM] Select one of KVM/arm64's modes of operation.
 

Documentation/filesystems/f2fs.rst

@@ -365,6 +365,25 @@ errors=%s		 Specify f2fs behavior on critical errors. This supports modes:
 			 pending node write	drop		keep		N/A
 			 pending meta write	keep		keep		N/A
 			 ====================== =============== =============== ========
+lookup_mode=%s		 Control the directory lookup behavior for casefolded
+			 directories. This option has no effect on directories
+			 that do not have the casefold feature enabled.
+
+			 ================== ========================================
+			 Value		    Description
+			 ================== ========================================
+			 perf		    (Default) Enforces a hash-only lookup.
+					    The linear search fallback is always
+					    disabled, ignoring the on-disk flag.
+			 compat		    Enables the linear search fallback for
+					    compatibility with directory entries
+					    created by older kernel that used a
+					    different case-folding algorithm.
+					    This mode ignores the on-disk flag.
+			 auto		    F2FS determines the mode based on the
+					    on-disk `SB_ENC_NO_COMPAT_FALLBACK_FL`
+					    flag.
+			 ================== ========================================
 ======================== ============================================================
 
 Debugfs Entries

Documentation/networking/ip-sysctl.rst

@@ -2304,6 +2304,20 @@ accept_ra_pinfo - BOOLEAN
 		- enabled if accept_ra is enabled.
 		- disabled if accept_ra is disabled.
 
+ra_honor_pio_pflag - BOOLEAN
+	The Prefix Information Option P-flag indicates the network can
+	allocate a unique IPv6 prefix per client using DHCPv6-PD.
+	This sysctl can be enabled when a userspace DHCPv6-PD client
+	is running to cause the P-flag to take effect: i.e. the
+	P-flag suppresses any effects of the A-flag within the same
+	PIO. For a given PIO, P=1 and A=1 is treated as A=0.
+
+	- If disabled, the P-flag is ignored.
+	- If enabled, the P-flag will disable SLAAC autoconfiguration
+	  for the given Prefix Information Option.
+
+	Default: 0 (disabled)
+
 accept_ra_rt_info_min_plen - INTEGER
 	Minimum prefix length of Route Information in RA.
 

Makefile

@@ -970,16 +970,9 @@ endif
 
 ifdef CONFIG_LTO_CLANG
 ifdef CONFIG_LTO_CLANG_THIN
-CC_FLAGS_LTO	:= -flto=thin -fsplit-lto-unit
+CC_FLAGS_LTO	:= -flto=thin -fsplit-lto-unit -fvisibility=default
 else
-CC_FLAGS_LTO	:= -flto
-endif
-
-ifeq ($(SRCARCH),x86)
-# Workaround for compiler / linker bug
-CC_FLAGS_LTO	+= -fvisibility=hidden
-else
-CC_FLAGS_LTO	+= -fvisibility=default
+CC_FLAGS_LTO	:= -flto -fvisibility=hidden
 endif
 
 # Limit inlining across translation units to reduce binary size