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| | | * | | | | | | | efi: Make efivarfs entries immutable by defaultPeter Jones2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879 upstream. "rm -rf" is bricking some peoples' laptops because of variables being used to store non-reinitializable firmware driver data that's required to POST the hardware. These are 100% bugs, and they need to be fixed, but in the mean time it shouldn't be easy to *accidentally* brick machines. We have to have delete working, and picking which variables do and don't work for deletion is quite intractable, so instead make everything immutable by default (except for a whitelist), and make tools that aren't quite so broad-spectrum unset the immutable flag. Signed-off-by: Peter Jones <pjones@redhat.com> Tested-by: Lee, Chun-Yi <jlee@suse.com> Acked-by: Matthew Garrett <mjg59@coreos.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | efi: Make our variable validation list include the guidPeter Jones2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 8282f5d9c17fe15a9e658c06e3f343efae1a2a2f upstream. All the variables in this list so far are defined to be in the global namespace in the UEFI spec, so this just further ensures we're validating the variables we think we are. Including the guid for entries will become more important in future patches when we decide whether or not to allow deletion of variables based on presence in this list. Signed-off-by: Peter Jones <pjones@redhat.com> Tested-by: Lee, Chun-Yi <jlee@suse.com> Acked-by: Matthew Garrett <mjg59@coreos.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | lib/ucs2_string: Add ucs2 -> utf8 helper functionsPeter Jones2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 73500267c930baadadb0d02284909731baf151f7 upstream. This adds ucs2_utf8size(), which tells us how big our ucs2 string is in bytes, and ucs2_as_utf8, which translates from ucs2 to utf8.. Signed-off-by: Peter Jones <pjones@redhat.com> Tested-by: Lee, Chun-Yi <jlee@suse.com> Acked-by: Matthew Garrett <mjg59@coreos.com> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | tcp/dccp: fix another race at listener dismantleEric Dumazet2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 7716682cc58e305e22207d5bb315f26af6b1e243 ] Ilya reported following lockdep splat: kernel: ========================= kernel: [ BUG: held lock freed! ] kernel: 4.5.0-rc1-ceph-00026-g5e0a311 #1 Not tainted kernel: ------------------------- kernel: swapper/5/0 is freeing memory ffff880035c9d200-ffff880035c9dbff, with a lock still held there! kernel: (&(&queue->rskq_lock)->rlock){+.-...}, at: [<ffffffff816f6a88>] inet_csk_reqsk_queue_add+0x28/0xa0 kernel: 4 locks held by swapper/5/0: kernel: #0: (rcu_read_lock){......}, at: [<ffffffff8169ef6b>] netif_receive_skb_internal+0x4b/0x1f0 kernel: #1: (rcu_read_lock){......}, at: [<ffffffff816e977f>] ip_local_deliver_finish+0x3f/0x380 kernel: #2: (slock-AF_INET){+.-...}, at: [<ffffffff81685ffb>] sk_clone_lock+0x19b/0x440 kernel: #3: (&(&queue->rskq_lock)->rlock){+.-...}, at: [<ffffffff816f6a88>] inet_csk_reqsk_queue_add+0x28/0xa0 To properly fix this issue, inet_csk_reqsk_queue_add() needs to return to its callers if the child as been queued into accept queue. We also need to make sure listener is still there before calling sk->sk_data_ready(), by holding a reference on it, since the reference carried by the child can disappear as soon as the child is put on accept queue. Reported-by: Ilya Dryomov <idryomov@gmail.com> Fixes: ebb516af60e1 ("tcp/dccp: fix race at listener dismantle phase") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | route: check and remove route cache when we get routeXin Long2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit deed49df7390d5239024199e249190328f1651e7 ] Since the gc of ipv4 route was removed, the route cached would has no chance to be removed, and even it has been timeout, it still could be used, cause no code to check it's expires. Fix this issue by checking and removing route cache when we get route. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | net:Add sysctl_max_skb_fragsHans Westgaard Ry2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 5f74f82ea34c0da80ea0b49192bb5ea06e063593 ] Devices may have limits on the number of fragments in an skb they support. Current codebase uses a constant as maximum for number of fragments one skb can hold and use. When enabling scatter/gather and running traffic with many small messages the codebase uses the maximum number of fragments and may thereby violate the max for certain devices. The patch introduces a global variable as max number of fragments. Signed-off-by: Hans Westgaard Ry <hans.westgaard.ry@oracle.com> Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | tcp: do not drop syn_recv on all icmp reportsEric Dumazet2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 9cf7490360bf2c46a16b7525f899e4970c5fc144 ] Petr Novopashenniy reported that ICMP redirects on SYN_RECV sockets were leading to RST. This is of course incorrect. A specific list of ICMP messages should be able to drop a SYN_RECV. For instance, a REDIRECT on SYN_RECV shall be ignored, as we do not hold a dst per SYN_RECV pseudo request. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=111751 Fixes: 079096f103fa ("tcp/dccp: install syn_recv requests into ehash table") Reported-by: Petr Novopashenniy <pety@rusnet.ru> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | unix: correctly track in-flight fds in sending process user_structHannes Frederic Sowa2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 415e3d3e90ce9e18727e8843ae343eda5a58fad6 ] The commit referenced in the Fixes tag incorrectly accounted the number of in-flight fds over a unix domain socket to the original opener of the file-descriptor. This allows another process to arbitrary deplete the original file-openers resource limit for the maximum of open files. Instead the sending processes and its struct cred should be credited. To do so, we add a reference counted struct user_struct pointer to the scm_fp_list and use it to account for the number of inflight unix fds. Fixes: 712f4aad406bb1 ("unix: properly account for FDs passed over unix sockets") Reported-by: David Herrmann <dh.herrmann@gmail.com> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: Willy Tarreau <w@1wt.eu> Cc: Linus Torvalds <torvalds@linux-foundation.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()Paolo Abeni2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 6f21c96a78b835259546d8f3fb4edff0f651d478 ] The current implementation of ip6_dst_lookup_tail basically ignore the egress ifindex match: if the saddr is set, ip6_route_output() purposefully ignores flowi6_oif, due to the commit d46a9d678e4c ("net: ipv6: Dont add RT6_LOOKUP_F_IFACE flag if saddr set"), if the saddr is 'any' the first route lookup in ip6_dst_lookup_tail fails, but upon failure a second lookup will be performed with saddr set, thus ignoring the ifindex constraint. This commit adds an output route lookup function variant, which allows the caller to specify lookup flags, and modify ip6_dst_lookup_tail() to enforce the ifindex match on the second lookup via said helper. ip6_route_output() becames now a static inline function build on top of ip6_route_output_flags(); as a side effect, out-of-tree modules need now a GPL license to access the output route lookup functionality. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | | * | | | | | | | gro: Make GRO aware of lightweight tunnels.Jesse Gross2016-03-03
| | | | |_|_|_|/ / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit ce87fc6ce3f9f4488546187e3757cf666d9d4a2a ] GRO is currently not aware of tunnel metadata generated by lightweight tunnels and stored in the dst. This leads to two possible problems: * Incorrectly merging two frames that have different metadata. * Leaking of allocated metadata from merged frames. This avoids those problems by comparing the tunnel information before merging, similar to how we handle other metadata (such as vlan tags), and releasing any state when we are done. Reported-by: John <john.phillips5@hpe.com> Fixes: 2e15ea39 ("ip_gre: Add support to collect tunnel metadata.") Signed-off-by: Jesse Gross <jesse@kernel.org> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * | | | | | | | Merge remote-tracking branch 'lsk/v4.4/topic/ro-vdso' into linux-linaro-lsk-v4.4Mark Brown2016-03-17
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| | | * | | | | | | arch: Introduce post-init read-only memoryKees Cook2016-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit c74ba8b3480da6ddaea17df2263ec09b869ac496 upstream. One of the easiest ways to protect the kernel from attack is to reduce the internal attack surface exposed when a "write" flaw is available. By making as much of the kernel read-only as possible, we reduce the attack surface. Many things are written to only during __init, and never changed again. These cannot be made "const" since the compiler will do the wrong thing (we do actually need to write to them). Instead, move these items into a memory region that will be made read-only during mark_rodata_ro() which happens after all kernel __init code has finished. This introduces __ro_after_init as a way to mark such memory, and adds some documentation about the existing __read_mostly marking. This improves the security of the Linux kernel by marking formerly read-write memory regions as read-only on a fully booted up system. Based on work by PaX Team and Brad Spengler. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brad Spengler <spender@grsecurity.net> Cc: Brian Gerst <brgerst@gmail.com> Cc: David Brown <david.brown@linaro.org> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Emese Revfy <re.emese@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mathias Krause <minipli@googlemail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: PaX Team <pageexec@freemail.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kernel-hardening@lists.openwall.com Cc: linux-arch <linux-arch@vger.kernel.org> Link: http://lkml.kernel.org/r/1455748879-21872-5-git-send-email-keescook@chromium.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: David Brown <david.brown@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | * | | | | | | asm-generic: Consolidate mark_rodata_ro()Kees Cook2016-03-17
| | | | |_|_|_|/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit e267d97b83d9cecc16c54825f9f3ac7f72dc1e1e upstream. Instead of defining mark_rodata_ro() in each architecture, consolidate it. Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Gross <agross@codeaurora.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Ashok Kumar <ashoks@broadcom.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Brown <david.brown@linaro.org> Cc: David Hildenbrand <dahi@linux.vnet.ibm.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Emese Revfy <re.emese@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Helge Deller <deller@gmx.de> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathias Krause <minipli@googlemail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: PaX Team <pageexec@freemail.hu> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Toshi Kani <toshi.kani@hp.com> Cc: kernel-hardening@lists.openwall.com Cc: linux-arch <linux-arch@vger.kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-parisc@vger.kernel.org Link: http://lkml.kernel.org/r/1455748879-21872-2-git-send-email-keescook@chromium.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: David Brown <david.brown@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* | | | | | | | | Merge "leds: qpnp-flash-v2: Separate switch node disable sequence"Linux Build Service Account2016-07-13
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| * | | | | | | | | leds: qpnp-flash-v2: Separate switch node disable sequenceDevesh Jhunjhunwala2016-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the leds_off label and move the switch node disable sequence into a separate function. Also take this opportunity to move the flash-led structs from header file to driver file. CRs-Fixed: 1024187 Change-Id: I5d4eb58f5ed3ace03190f3c48b98f0d88e8b8965 Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>
* | | | | | | | | | Merge "leds: qpnp-flash-v2: Add support for multiple switch nodes"Linux Build Service Account2016-07-13
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| * | | | | | | | | leds: qpnp-flash-v2: Add support for multiple switch nodesDevesh Jhunjhunwala2016-07-12
| |/ / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since multiple devices may need to use the flash module, each will need its own switch node to be able to independently control the different leds. Add support for this functionality. CRs-Fixed: 1024187 Change-Id: Ibeebaff8456d8d338ac9bebb50e205e1196ce8a6 Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>
* | | | | | | | | Merge "clk: msm: clock-mmss-cobalt: Add display port pixel clocks"Linux Build Service Account2016-07-13
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| * | | | | | | | | clk: msm: clock-local: Add RCG support for DP pixel sourceDeepak Katragadda2016-07-12
| |/ / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new RCG op specific for the DP pixel clock source. CRs-Fixed: 1028725 Change-Id: I65dcac9f4d17d30dfa1a00f4edabef33a3d75c6a Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
* | | | | | | | | Merge "net lro: extend LRO to use hardware assists"Linux Build Service Account2016-07-13
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| * | | | | | | | | net lro: extend LRO to use hardware assistsDhanashri Atre2016-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change extends the existing LRO module to use the hardware assits provided by certain NICs thereby reducing the CPU utilization. CRs-Fixed: 1035499 Change-Id: I4ed497c69042a4d15f9340f91d60c262ca79a36b Signed-off-by: Dhanashri Atre <datre@codeaurora.org>
* | | | | | | | | | Merge "sched: break the forever prev_cpu selection preference"Linux Build Service Account2016-07-13
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| * | | | | | | | | | sched: break the forever prev_cpu selection preferencePavankumar Kondeti2016-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The select_best_cpu() algorithm selects the previous CPU as the target CPU if the task did not sleep for more than 2 msec (controlled by /proc/sys/kernel/sched_select_prev_cpu_us). The complete CPU search is not done for a long time for tasks which sleeps for a short duration in between the long execution slices. Enforce a 100 msec threshold since the last selection time to run the complete algorithm. CRs-Fixed: 984463 Change-Id: I329eecc6bae8f130cd5598f6cee8ca5a01391cca [joonwoop@codeaurora.org: fixed conflict in bias_to_prev_cpu() and sched.h where CONFIG_SCHED_QHMP used to be.] Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
* | | | | | | | | | | Merge "cnss: Refactor CNSS Platform Driver for better code maintenance"Linux Build Service Account2016-07-13
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| * | | | | | | | | | cnss: Refactor CNSS Platform Driver for better code maintenanceKomal Seelam2016-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Retain API's in cnss_common.h file for cnss use only. cnss.h is to be used to expose the EXPORT_SYMBOL API's. CRs-Fixed: 1009898 Change-Id: I2b9eb81552f4803c3accd0221ea891697a9a93bc Signed-off-by: Komal Kumar <kseelam@codeaurora.org>
* | | | | | | | | | | msm: sde: Updating linear format definition for v4l2 rotatorBenjamin Chan2016-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Providing additonal linear format support for v4l2 rotator in mdss 3.x hardware. CRs-Fixed: 1032294 Change-Id: Ie8a19341831d4ffaea36898a80c71ab25f5daf3c Signed-off-by: Benjamin Chan <bkchan@codeaurora.org>
* | | | | | | | | | | clk: msm: clock-mmss-cobalt: Add display port clock supportDeepak Katragadda2016-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the DP link and crypto clocks on MSMCOBALT. CRs-Fixed: 1028725 Change-Id: I6cdb366499f9589dff9a42491c7ff357e98d65c5 Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
* | | | | | | | | | | leds: qpnp-flash-v2: add regulator supportDevesh Jhunjhunwala2016-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support to control regulators required for flash-led. The pmicobalt_bob regulator is one such regulator required by the flash-led device. CRs-Fixed: 1024187 Change-Id: I1515fba2fb04c0b4d21828af3cea6d322262ab14 Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>
* | | | | | | | | | | leds: qpnp-flash-v2: add callback for max current queryChun Zhang2016-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Flash LED is a high energy aggregator from system as it is capable to provide current up to 3750mA for illumination. Therefore, it should be used with caution especially when battery state of charge is low. Therefore, add a function which can be used by clients like camera to query the flash current limit before using flash LED. This protects the system from a possible UVLO condition. CRs-Fixed: 964855 Change-Id: I17fa4f28cc151e3a3ad89d284995a3fa770bec68 Signed-off-by: Chun Zhang <chunz@codeaurora.org> Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>
* | | | | | | | | | | leds: qpnp-flash-v2: add support for strobe configurationChun Zhang2016-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Flash LED module supports various kinds of strobe support. Strobe type can be hardware or software, active high or low, and level or edge trigger. Add support for configuring strobe type through device tree properties. CRs-Fixed: 1024187 Change-Id: Ief6a610c82b7f645966c596f543a1d30f7a40dcc Signed-off-by: Chun Zhang <chunz@codeaurora.org> Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>
* | | | | | | | | | | media: videobuf2: Increase max buffersShubhraprakash Das2016-07-11
| |_|/ / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increase the maximum video buffers to 64 as with camera 64 buffers are allocated and used. CRs-Fixed: 1039456 Change-Id: I37d91c4f7e5d98333cf6be3c75168e134ae78060 Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
* | | | | | | | | | leds: qpnp-flash-v2: Add operational current propertyDevesh Jhunjhunwala2016-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the qcom,current-ma property to specify the operational current for the flash led. Also limit the minimum flash current to 25mA since currents below this value cause unstable flash operation. CRs-Fixed: 1033071 Change-Id: Ia133b6c0cf0c21484f61631f04cba0d1112c9d48 Signed-off-by: Devesh Jhunjhunwala <deveshj@codeaurora.org>
* | | | | | | | | | msm: camera: Return HAL buffer to fix drain issuesHariram Purushothaman2016-07-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return the HAL buffer to avoid drain issue and provide the get buf by index interface so clients can get buffer based on index. CRs-Fixed: 1018651 Change-Id: I20329a6834f5f1498388c39b1dd95db2896b3239 Signed-off-by: Hariram Purushothaman <hariramp@codeaurora.org>
* | | | | | | | | | usb: xhci: Add helper APIs to return xhci dma addressesHemant Kumar2016-07-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dma address of secondary event ring, transfer ring and device context base address are required to pass to remote entity. Remote entity uses these addresses to program xhci controller registers. Change-Id: Ie0756d646a396a11b41b93e886bca9aff636ee5d Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* | | | | | | | | | usb: xhci: Add support for secondary interruptersHemant Kumar2016-07-06
| |_|_|_|_|_|/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement APIs to dynamically allocate and free secondary event rings based upon interrupter number. Also add exported APIs in usb core layer which allows secondary event ring management via remote processor entity. Change-Id: I5ee7d44d6cad8e35e22d3c1a027a1eec5d208585 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
* | | | | | | | | msm: thermal: Add support to monitor only one tsens for MX restrictionManaf Meethalavalappu Pallikunhi2016-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently VDD MX restriction feature monitors all tsens for low temperature condition. Some targets which has higher MX restriction thresholds shows frequent interrupts from multiple sensors causing power impact. Add support to monitor only one sensor for VDD MX restriction feature. Add an optional device tree property "qcom,mx-restriction-sensor_id" to specify sensor id for monitor. If not defined, monitor all tsens for VDD MX restriction. Change-Id: Ib709b00c27f43c2603ac8a08b75f2fbd5800983b Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
* | | | | | | | | bluetooth: Add support for clocksSungjun Park2016-07-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some platforms, clock needs to be controlled by Bluetooth driver. Add support for that by obtaining it through a device tree property and use it for voting when required. Change-Id: I42a16f6dc8d5c11963713ae489ca6d8c9bf927e5 Signed-off-by: Sungjun Park <sjpark@codeaurora.org>
* | | | | | | | | clock: qcom: Add the clocks supported on MSMFalconTaniya Das2016-07-05
| |_|_|_|_|/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add all the clocks which are supported on msmfalcon and would be used by the clients for all clock operations for GCC, MMSS, GPU clock controllers. Change-Id: Ie328cb0516644d8a3d66fd0c054575a5cff637dc Signed-off-by: Taniya Das <tdas@codeaurora.org>
* | | | | | | | mm: process reclaim: vmpressure based process reclaimVinayak Menon2016-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch, anon pages of inactive tasks can be reclaimed, depending on memory pressure. Memory pressure is detected using vmpressure events. 'N' best tasks in terms of anon size is selected and pages proportional to their tasksize is reclaimed. The total number of pages reclaimed at each run of the swap work, can be tuned from userspace, the default being SWAP_CLUSTER_MAX * 32. The patch also adds tracepoints to debug and tune the feature. echo 1 > /sys/module/process_reclaim/parameters/enable_process_reclaim to enable the feature. echo <pages> > /sys/module/process_reclaim/parameters/per_swap_size, to set the number of pages reclaimed in each scan. /sys/module/process_reclaim/parameters/reclaim_avg_efficiency, provides the average efficiency (scan to reclaim ratio) of the algorithm. /sys/module/process_reclaim/parameters/swap_eff_win, to set the window period (in unit of number of times reclaim is triggered) to detect low efficiency runs. /sys/module/process_reclaim/parameters/swap_opt_eff, to set the optimal efficiency threshold for low efficiency detection. Change-Id: I895986f10c997d1715761eaaadc4bbbee60db9d2 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
* | | | | | | | ARM: mm: Update the kernel log messagesSusheel Khiani2016-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After reclaiming vmalloc and adjusting lowmem, the two regions are no longer contiguous. Update the messages printed during bootup to list all regions corresponding to low memory and vmalloc respectively. Change-Id: Ib3e25b530b3dfbd1f9796cdc580fb79da484e850 Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>
* | | | | | | | msm: thermal: Maintain state in the mitigation device monitorManaf Meethalavalappu Pallikunhi2016-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If KTM get a trip threshold trigger notification and if the temperature stays the same as the recent trip threshold, KTM will re-activate the recently triggered threshold, resulting in back to back interrupts. To avoid this add support in KTM to maintain the recently triggered threshold state and then re-active the threshold based on the last threshold trip. This state is updated for mitigation features like VDD MX retention, CX phase control, VDD restriction, OCR monitor and external clients like CPR low temperature monitor etc. CRs-Fixed: 969112 972634 Change-Id: I44c0a93e1507a9f0b8a65e5c2ce5a98962bb335b Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
* | | | | | | | devm: add helper devm_add_action_or_reset()Sudip Mukherjee2016-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a helper function devm_add_action_or_reset() which will internally call devm_add_action(). But if devm_add_action() fails then it will execute the action mentioned and return the error code. Change-Id: I70562e95e0ef672db7dc9bd9f24d9a3b356bf89c (cherry picked from commit a3499e9bf0fe ("devm: add helper devm_add_action_or_reset()") Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Taniya Das <tdas@codeaurora.org> Signed-off-by: Kyle Yan <kyan@codeaurora.org>
* | | | | | | | msm: camera: isp: Add drop reporting in RESUMING stateHarsh Shah2016-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In RESUMING state, WM is stopped causing skip in diverted buffers. Add drop reporting for these frames, so that modules down stream can be notified in case of reg_update miss. CRs-Fixed: 1012335 Change-Id: I67d700c5c844fd6be3bf6ded756fb93e0ebfb537 Signed-off-by: Harsh Shah <harshs@codeaurora.org> Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
* | | | | | | | ASoC: msm: qdspv2: add support for MULTI_CHANNEL_PCM_V3 commandManish Dewangan2016-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Driver changes to use ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V3 command. This command supports playback/record of both 32 bit (24 bit data in 32 bit word) and 24 bit packed. Update platform drivers to use this for SNDRV_PCM_FORMAT_S24_LE record and playback. CRs-Fixed: 1011048 Change-Id: I6f98bf3402a737bc21daff33b13b137850a690ea Signed-off-by: Manish Dewangan <manish@codeaurora.org>
* | | | | | | | soc: qcom: smem: Renaming smem item SMEM_SMEM_STATIC_LOG_EVENTSDhoat Harpal2016-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SMEM_SMEM_STATIC_LOG_EVENTS is currently unused as its usecase has been deprecated for a long time. Reallocate the ID to SMEM_CHARGER_BATTERY_INFO. CRs-Fixed: 1032131 Change-Id: I35a8307001ac14e3ade733d5f41d6231fe63ebd0 Signed-off-by: Dhoat Harpal <hdhoat@codeaurora.org>
* | | | | | | | clk: qcom: rpmcc: Add rpm clock data for msm8996Rajendra Nayak2016-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add all RPM clock data for msm8996 family of devices ToDo: Adapt to changes needed for RPM over GLINK against RPM over SMD that the driver currently supports Change-Id: Ib095af601a4f03d866cf94c8e277d04630abb42b Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Taniya Das <tdas@codeaurora.org>
* | | | | | | | clk: qcom: Add support for RPM ClocksGeorgi Djakov2016-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds initial support for clocks controlled by the Resource Power Manager (RPM) processor on some Qualcomm SoCs, which use the qcom_rpm driver to communicate with RPM. Such platforms are apq8064 and msm8960. Change-Id: I1a73355bc9117c34589a25cf58446cad13ceb6e3 (cherry picked from commit 06d998a24c68be94685af38e8becfda3c8bf757b) Git-commit: 06d998a24c68be94685af38e8becfda3c8bf757b Git-repo: https://git.linaro.org/landing-teams/working/qualcomm/kernel.git Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Taniya Das <tdas@codeaurora.org>
* | | | | | | | clk: qcom: Add support for SMD-RPM ClocksGeorgi Djakov2016-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds initial support for clocks controlled by the Resource Power Manager (RPM) processor on some Qualcomm SoCs, which use the qcom_smd_rpm driver to communicate with RPM. Such platforms are msm8916, apq8084 and msm8974. The RPM is a dedicated hardware engine for managing the shared SoC resources in order to keep the lowest power profile. It communicates with other hardware subsystems via shared memory and accepts clock requests, aggregates the requests and turns the clocks on/off or scales them on demand. This driver is based on the codeaurora.org driver: https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/clk/qcom/clock-rpm.c Change-Id: I8d2882de9410a992a8045caedc7ab71e3c3e45b2 (cherry picked from commit 69edeaf51c07c24e06b433762b3ada7b3d786315) Git-commit: 69edeaf51c07c24e06b433762b3ada7b3d786315 Git-repo: https://git.linaro.org/landing-teams/working/qualcomm/kernel.git Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Taniya Das <tdas@codeaurora.org>
* | | | | | | | ASoC: msm: qdsp6v2: pull mode playback and push mode recordHaynes Mathew George2016-06-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement platform drivers to support shared memory based pcm playback and capture. Change-Id: I882c67ae1c3d950b98bd002ac384cc3a7e77874a CRs-Fixed: 992798 Signed-off-by: Haynes Mathew George <hgeorge@codeaurora.org>
* | | | | | | | mm: Enhance per process reclaim to consider shared pagesMinchan Kim2016-06-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some pages could be shared by several processes. (ex, libc) In case of that, it's too bad to reclaim them from the beginnig. This patch causes VM to keep them on memory until last task try to reclaim them so shared pages will be reclaimed only if all of task has gone swapping out. This feature doesn't handle non-linear mapping on ramfs because it's very time-consuming and doesn't make sure of reclaiming and not common. Change-Id: I7e5f34f2e947f5db6d405867fe2ad34863ca40f7 Signed-off-by: Sangseok Lee <sangseok.lee@lge.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 9 May 2013 16:21:27 [vinmenon@codeaurora.org: trivial merge conflict fixes + changes to make the patch work with 3.18 kernel] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-13 18:18:27 +0000