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* treewide: Switch DEFINE_TIMER callbacks to struct timer_list *Kees Cook2017-11-2139-82/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes all DEFINE_TIMER() callbacks to use a struct timer_list pointer instead of unsigned long. Since the data argument has already been removed, none of these callbacks are using their argument currently, so this renames the argument to "unused". Done using the following semantic patch: @match_define_timer@ declarer name DEFINE_TIMER; identifier _timer, _callback; @@ DEFINE_TIMER(_timer, _callback); @change_callback depends on match_define_timer@ identifier match_define_timer._callback; type _origtype; identifier _origarg; @@ void -_callback(_origtype _origarg) +_callback(struct timer_list *unused) { ... } Signed-off-by: Kees Cook <keescook@chromium.org>
* s390: cmm: Convert timers to use timer_setup()Kees Cook2017-11-211-5/+3
| | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-s390@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
* lightnvm: Convert timers to use timer_setup()Kees Cook2017-11-216-13/+13
| | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Matias Bjorling <mb@lightnvm.io> Cc: linux-block@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
* drivers/net: cris: Convert timers to use timer_setup()Kees Cook2017-11-211-19/+17
| | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: "David S. Miller" <davem@davemloft.net> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "yuval.shaia@oracle.com" <yuval.shaia@oracle.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Philippe Reynes <tremyfr@gmail.com> Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
* drm/vc4: Convert timers to use timer_setup()Kees Cook2017-11-212-12/+7
| | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Eric Anholt <eric@anholt.net> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20171024151648.GA104538@beast Reviewed-by: Eric Anholt <eric@anholt.net>
* block/laptop_mode: Convert timers to use timer_setup()Kees Cook2017-11-213-9/+10
| | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Jens Axboe <axboe@kernel.dk> Cc: Michal Hocko <mhocko@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jan Kara <jack@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Jeff Layton <jlayton@redhat.com> Cc: linux-block@vger.kernel.org Cc: linux-mm@kvack.org Signed-off-by: Kees Cook <keescook@chromium.org>
* net/atm/mpc: Avoid open-coded assignment of timer callback functionKees Cook2017-11-211-2/+1
| | | | | | | Instead of a single function assignment, just fold this into DEFINE_TIMER(). Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Kees Cook <keescook@chromium.org>
* drm/i915/selftests: Convert timers to use timer_setup()Kees Cook2017-11-211-3/+3
| | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: intel-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
* usb: usbatm: Convert timers to use timer_setup()Kees Cook2017-11-213-20/+29
| | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Additionally corrects and on-stack timer usage. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Duncan Sands <duncan.sands@free.fr> Cc: "Gustavo A. R. Silva" <garsilva@embeddedor.com> Cc: accessrunner-general@lists.sourceforge.net Cc: linux-usb@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Allen Pais <allen.lkml@gmail.com>
* drivers/firmware: psci: Convert timers to use timer_setup()Kees Cook2017-11-211-2/+2
| | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Also adds missing call to destroy_timer_on_stack(). Cc: Mark Rutland <mark.rutland@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Kees Cook <keescook@chromium.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2017-11-2132-176/+220
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix a reference to a module parameter which was lost during the GREv6 receive path rewrite, from Alexey Kodanev. 2) Fix deref before NULL check in ipheth, from Gustavo A. R. Silva. 3) RCU read lock imbalance in tun_build_skb(), from Xin Long. 4) Some stragglers from the mac80211 folks: a) Timer conversions from Kees Cook b) Fix some sequencing issue when cfg80211 is built statically, from Johannes Berg c) Memory leak in mac80211_hwsim, from Ben Hutchings. 5) Add new qmi_wwan device ID, from Sebastian Sjoholm. 6) Fix use after free in tipc, from Jon Maloy. 7) Missing kdoc in nfp driver, from Jakub Kicinski. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: nfp: flower: add missing kdoc tipc: fix access of released memory net: qmi_wwan: add Quectel BG96 2c7c:0296 mlxsw: spectrum: Do not try to create non-existing ports during unsplit mac80211: properly free requested-but-not-started TX agg sessions mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl() cfg80211: initialize regulatory keys/database later mac80211: aggregation: Convert timers to use timer_setup() nl80211: don't expose wdev->ssid for most interfaces mac80211: Convert timers to use timer_setup() net: vxge: Fix some indentation issues net: ena: fix race condition between device reset and link up setup r8169: use same RTL8111EVL green settings as in vendor driver r8169: fix RTL8111EVL EEE and green settings tun: fix rcu_read_lock imbalance in tun_build_skb tcp: when scheduling TLP, time of RTO should account for current ACK usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set gre6: use log_ecn_error module parameter in ip6_tnl_rcv()
| * Merge tag 'mac80211-for-davem-2017-11-20' of ↵David S. Miller2017-11-2117-137/+155
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== A few things: * straggler timer conversions from Kees * memory leak fix in hwsim * fix some fallout from regdb changes if wireless is built-in * also free aggregation sessions in startup state when station goes away, to avoid crashing the timer ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| | * mac80211: properly free requested-but-not-started TX agg sessionsJohannes Berg2017-11-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When deleting a station or otherwise tearing down all aggregation sessions, make sure to delete requested but not yet started ones, to avoid the following scenario: * session is requested, added to tid_start_tx[] * ieee80211_ba_session_work() runs, gets past BLOCK_BA check * ieee80211_sta_tear_down_BA_sessions() runs, locks &sta->ampdu_mlme.mtx, e.g. while deleting the station - deleting all active sessions * ieee80211_ba_session_work() continues since tear down flushes it, and calls ieee80211_tx_ba_session_handle_start() for the new session, arms the timer for it * station deletion continues to __cleanup_single_sta() and frees the session struct, while the timer is armed Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl()Ben Hutchings2017-11-201-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hwsim_new_radio_nl() now copies the name attribute in order to add a null-terminator. mac80211_hwsim_new_radio() (indirectly) copies it again into the net_device structure, so the first copy is not used or freed later. Free the first copy before returning. Fixes: ff4dd73dd2b4 ("mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length") Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * cfg80211: initialize regulatory keys/database laterJohannes Berg2017-11-201-15/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When cfg80211 is built as a module, everything is fine, and we can keep the code as is; in fact, we have to, because there can only be a single module_init(). When cfg80211 is built-in, however, it needs to initialize before drivers (device_initcall/module_init), and thus used to be at subsys_initcall(). I'd moved it to fs_initcall() earlier, where it can remain. However, this is still too early because at that point the key infrastructure hasn't been initialized yet, so X.509 certificates can't be parsed yet. To work around this problem, load the regdb keys only later in a late_initcall(), at which point the necessary infrastructure has been initialized. Fixes: 90a53e4432b1 ("cfg80211: implement regdb signature checking") Reported-by: Xiaolong Ye <xiaolong.ye@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * mac80211: aggregation: Convert timers to use timer_setup()Kees Cook2017-11-204-60/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. This removes the tid mapping array and expands the tid structures to add a pointer back to the station, along with the tid index itself. Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> [switch tid variables to u8, the valid range is 0-15 at most, initialize tid_tx->sta/tid properly] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * nl80211: don't expose wdev->ssid for most interfacesJohannes Berg2017-11-201-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For mesh, this is simply wrong - there's no SSID, only the mesh ID, so don't expose it at all. For (P2P) client, it's wrong, because it exposes an internal value that's only used when certain APIs are used. For AP, it's actually the only correct case, so leave that. All other interface types shouldn't be setting this anyway, so there it won't change anything. Fixes: b84e7a05f619 ("nl80211: send the NL80211_ATTR_SSID in nl80211_send_iface()") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * mac80211: Convert timers to use timer_setup()Kees Cook2017-11-2011-59/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | nfp: flower: add missing kdocJakub Kicinski2017-11-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 0115552eac14 ("nfp: remove false positive offloads in flower vxlan") missed adding kdoc for a new parameter of nfp_flower_add_offload(). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | tipc: fix access of released memoryJon Maloy2017-11-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the function tipc_group_filter_msg() finds that a member event indicates that the member is leaving the group, it first deletes the member instance, and then purges the message queue being handled by the call. But the message queue is an aggregated field in the just deleted item, leading the purge call to access freed memory. We fix this by swapping the order of the two actions. Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: qmi_wwan: add Quectel BG96 2c7c:0296Sebastian Sjoholm2017-11-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quectel BG96 is an Qualcomm MDM9206 based IoT modem, supporting both CAT-M and NB-IoT. Tested hardware is BG96 mounted on Quectel development board (EVB). The USB id is added to qmi_wwan.c to allow QMI communication with the BG96. Signed-off-by: Sebastian Sjoholm <ssjoholm@mac.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | mlxsw: spectrum: Do not try to create non-existing ports during unsplitIdo Schimmel2017-11-212-2/+8
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some systems, when we unsplit a port we need to re-create two ports instead. On other systems, only one needs to be re-created. Do not try to create a port if during driver initialization it was assigned a negative module number, which is invalid. This avoids the following error during unsplit: [ 941.012478] mlxsw_spectrum 0000:01:00.0: Port 43: Failed to map module The error is harmless and caused by the fact that a local port is already mapped to module 0. Fixes: be94535f9531 ("mlxsw: spectrum: Make split flow match firmware requirements") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: vxge: Fix some indentation issuesChristophe JAILLET2017-11-201-19/+18
| | | | | | | | | | | | | | | | Some statements are not enough or too much indented. Fix it to improve readalbility. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: ena: fix race condition between device reset and link up setupNetanel Belgazal2017-11-202-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In rare cases, ena driver would reset and re-start the device, for example, in case of misbehaving application that causes transmit timeout The first step in the reset procedure is to stop the Tx traffic by calling ena_carrier_off(). After the driver have just started the device reset procedure, device happens to send an asynchronous notification (via AENQ) to the driver than there was a link change (to link-up state). This link change is mapped to a call to netif_carrier_on() which re-activates the Tx queues, violating the assumption of no tx traffic until device reset is completed, as the reset task might still be in the process of queues initialization, leading to an access to uninitialized memory. Signed-off-by: Netanel Belgazal <netanel@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * r8169: use same RTL8111EVL green settings as in vendor driverHeiner Kallweit2017-11-191-0/+5
| | | | | | | | | | | | | | | | Adjust the code to use the same green settings as in the latest vendor driver. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * r8169: fix RTL8111EVL EEE and green settingsHeiner Kallweit2017-11-191-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Name of functions rtl_w0w1_eri and rtl_w0w1_phy is somewhat misleading regarding order of arguments. One could assume that w0w1 means argument with bits to be reset comes before argument with bits to set. However this is not the case. So fix the order of arguments in several statements. In addition fix EEE advertisement. The current code resets the bits for 100BaseT and 1000BaseT EEE advertisement what is not what we want. I have a little of a hard time to find a proper "Fixes" line as the issue seems to have been there forever (at least it existed already when the driver was moved to the current place in 2011). The patch was tested on a Zotac Mini-PC with a RTL8111E-VL chip. Before the patch EEE was disabled, now it's properly advertised and works fine. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tun: fix rcu_read_lock imbalance in tun_build_skbXin Long2017-11-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rcu_read_lock in tun_build_skb is used to rcu_dereference tun->xdp_prog safely, rcu_read_unlock should be done in every return path. Now I could see one place missing it, where it returns NULL in switch-case XDP_REDIRECT, another palce using rcu_read_lock wrongly, where it returns NULL in if (xdp_xmit) chunk. So fix both in this patch. Fixes: 761876c857cb ("tap: XDP support") Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tcp: when scheduling TLP, time of RTO should account for current ACKNeal Cardwell2017-11-193-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the TLP scheduling logic so that when scheduling a TLP probe, we ensure that the estimated time at which an RTO would fire accounts for the fact that ACKs indicating forward progress should push back RTO times. After the following fix: df92c8394e6e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed") we had an unintentional behavior change in the following kind of scenario: suppose the RTT variance has been very low recently. Then suppose we send out a flight of N packets and our RTT is 100ms: t=0: send a flight of N packets t=100ms: receive an ACK for N-1 packets The response before df92c8394e6e that was: -> schedule a TLP for now + RTO_interval The response after df92c8394e6e is: -> schedule a TLP for t=0 + RTO_interval Since RTO_interval = srtt + RTT_variance, this means that we have scheduled a TLP timer at a point in the future that only accounts for RTT_variance. If the RTT_variance term is small, this means that the timer fires soon. Before df92c8394e6e this would not happen, because in that code, when we receive an ACK for a prefix of flight, we did: 1) Near the top of tcp_ack(), switch from TLP timer to RTO at write_queue_head->paket_tx_time + RTO_interval: if (icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) tcp_rearm_rto(sk); 2) In tcp_clean_rtx_queue(), update the RTO to now + RTO_interval: if (flag & FLAG_ACKED) { tcp_rearm_rto(sk); 3) In tcp_ack() after tcp_fastretrans_alert() switch from RTO to TLP at now + RTO_interval: if (icsk->icsk_pending == ICSK_TIME_RETRANS) tcp_schedule_loss_probe(sk); In df92c8394e6e we removed that 3-phase dance, and instead directly set the TLP timer once: we set the TLP timer in cases like this to write_queue_head->packet_tx_time + RTO_interval. So if the RTT variance is small, then this means that this is setting the TLP timer to fire quite soon. This means if the ACK for the tail of the flight takes longer than an RTT to arrive (often due to delayed ACKs), then the TLP timer fires too quickly. Fixes: df92c8394e6e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed") Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_setGustavo A. R. Silva2017-11-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | _dev_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _dev_ has been null checked. Addresses-Coverity-ID: 1462020 Fixes: bb1b40c7cb86 ("usbnet: ipheth: prevent TX queue timeouts when device not ready") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gre6: use log_ecn_error module parameter in ip6_tnl_rcv()Alexey Kodanev2017-11-191-1/+1
| | | | | | | | | | | | | | | | | | | | After commit 308edfdf1563 ("gre6: Cleanup GREv6 receive path, call common GRE functions") it's not used anywhere in the module, but previously was used in ip6gre_rcv(). Fixes: 308edfdf1563 ("gre6: Cleanup GREv6 receive path, call common GRE functions") Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge tag 'for-linus-4.15-ofs1' of ↵Linus Torvalds2017-11-2110-154/+72
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux Pull orangefs updates from Mike Marshall: "Fix: - stop setting atime on inode dirty (Martin Brandenburg) Cleanups: - remove initialization of i_version (Jeff Layton) - use ARRAY_SIZE (Jérémy Lefaure) - call op_release sooner when creating inodes (Mike MarshallMartin Brandenburg)" * tag 'for-linus-4.15-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: orangefs: call op_release sooner when creating inodes orangefs: stop setting atime on inode dirty orangefs: use ARRAY_SIZE orangefs: remove initialization of i_version
| * | orangefs: call op_release sooner when creating inodesMartin Brandenburg2017-11-131-9/+15
| | | | | | | | | | | | | | | | | | | | | | | | Prevents holding an unnecessary op while the kernel processes another op and yields the CPU. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
| * | orangefs: stop setting atime on inode dirtyMartin Brandenburg2017-11-139-141/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous code path was to mark the inode dirty, let orangefs_inode_dirty set a flag in our private inode, then later during inode release call orangefs_flush_inode which notices the flag and writes the atime out. The code path worked almost identically for mtime, ctime, and mode except that those flags are set explicitly and not as side effects of dirty. Now orangefs_flush_inode is removed. Marking an inode dirty does not imply an atime update. Any place where flags were set before is now an explicit call to orangefs_inode_setattr. Since OrangeFS does not utilize inode writeback, the attribute change should be written out immediately. Fixes generic/120. In namei.c, there are several places where the directory mtime and ctime are set, but only the mtime is sent to the server. These don't seem right, but I've left them as is for now. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
| * | orangefs: use ARRAY_SIZEJérémy Lefaure2017-11-132-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using the ARRAY_SIZE macro improves the readability of the code. Found with Coccinelle with the following semantic patch: @r depends on (org || report)@ type T; T[] E; position p; @@ ( (sizeof(E)@p /sizeof(*E)) | (sizeof(E)@p /sizeof(E[...])) | (sizeof(E)@p /sizeof(T)) ) Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
| * | orangefs: remove initialization of i_versionJeff Layton2017-11-131-2/+0
| | | | | | | | | | | | | | | | | | | | | ...as it's completely unused. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* | | Merge tag 'ceph-for-4.15-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds2017-11-2111-150/+237
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ceph updates from Ilya Dryomov: "We have a set of file locking improvements from Zheng, rbd rw/ro state handling code cleanup from myself and some assorted CephFS fixes from Jeff. rbd now defaults to single-major=Y, lifting the limit of ~240 rbd images per host for everyone" * tag 'ceph-for-4.15-rc1' of git://github.com/ceph/ceph-client: rbd: default to single-major device number scheme libceph: don't WARN() if user tries to add invalid key rbd: set discard_alignment to zero ceph: silence sparse endianness warning in encode_caps_cb ceph: remove the bump of i_version ceph: present consistent fsid, regardless of arch endianness ceph: clean up spinlocking and list handling around cleanup_cap_releases() rbd: get rid of rbd_mapping::read_only rbd: fix and simplify rbd_ioctl_set_ro() ceph: remove unused and redundant variable dropping ceph: mark expected switch fall-throughs ceph: -EINVAL on decoding failure in ceph_mdsc_handle_fsmap() ceph: disable cached readdir after dropping positive dentry ceph: fix bool initialization/comparison ceph: handle 'session get evicted while there are file locks' ceph: optimize flock encoding during reconnect ceph: make lock_to_ceph_filelock() static ceph: keep auth cap when inode has flocks or posix locks
| * | | rbd: default to single-major device number schemeIlya Dryomov2017-11-131-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's been 3.5 years, let's turn it on by default. Support in rbd(8) utility goes back to pre-firefly, "rbd map" has been loading the module with single_major=Y ever since. However, if the module is already loaded (whether by hand or at boot time), we end up with single_major=N. Also, some people don't install rbd(8) and use the sysfs interface directly. (With single-major=N, a major number is consumed for every mapping, imposing a limit of ~240 rbd images per host. single-major=Y allows mapping thousands of rbd images on a single machine.) Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Jason Dillaman <dillaman@redhat.com>
| * | | libceph: don't WARN() if user tries to add invalid keyEric Biggers2017-11-131-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WARN_ON(!key->len) in set_secret() in net/ceph/crypto.c is hit if a user tries to add a key of type "ceph" with an invalid payload as follows (assuming CONFIG_CEPH_LIB=y): echo -e -n '\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' \ | keyctl padd ceph desc @s This can be hit by fuzzers. As this is merely bad input and not a kernel bug, replace the WARN_ON() with return -EINVAL. Fixes: 7af3ea189a9a ("libceph: stop allocating a new cipher on every crypto request") Cc: <stable@vger.kernel.org> # v4.10+ Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | rbd: set discard_alignment to zeroDavid Disseldorp2017-11-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RBD devices are currently incorrectly initialised with the block queue discard_alignment set to the underlying RADOS object size. As per Documentation/ABI/testing/sysfs-block: The discard_alignment parameter indicates how many bytes the beginning of the device is offset from the internal allocation unit's natural alignment. Correcting the discard_alignment parameter from the RADOS object size to zero (the blk_set_default_limits() default) has no effect on how discard requests are propagated through the block layer - @alignment in __blkdev_issue_discard() remains zero. However, it does fix the UNMAP granularity alignment value advertised to SCSI initiators via the Block Limits VPD. Signed-off-by: David Disseldorp <ddiss@suse.de> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: silence sparse endianness warning in encode_caps_cbJeff Layton2017-11-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sparse warns: fs/ceph/mds_client.c:2887:34: warning: incorrect type in assignment (different base types) fs/ceph/mds_client.c:2887:34: expected restricted __le32 [assigned] [usertype] flock_len fs/ceph/mds_client.c:2887:34: got int At this point, it's just being used as a flag. It gets overwritten later if the rest of the encoding succeeds. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: remove the bump of i_versionJeff Layton2017-11-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eventually, we'll want to wire cephfs up to use the change attribute that the cluster tracks instead, but for now this is unneeded. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: present consistent fsid, regardless of arch endiannessJeff Layton2017-11-131-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since its inception, ceph has presented the fsid as an opaque value without any sort of endianness conversion. This means that the value presented is different on architectures of different endianness. While the value that should be stuffed into f_fsid is poorly-defined, I think it would be best to strive for consistency here between architectures, and clients (we need to present this properly to the userland client as well). Change ceph_statfs to convert the opaque words to host-endian before doing the xor. On an upgrade, a big-endian box may see a different fsid than it did before, but little-endian arches should see no change with this patch. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Sage Weil <sage@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: clean up spinlocking and list handling around cleanup_cap_releases()Jeff Layton2017-11-131-13/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Functions that release a lock taken in a parent frame are notoriously hard to follow. Split cleanup_cap_releases into two functions, one to detach the cap releases from the session (which should be called with the spinlock held), and another to dispose of those caps. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | rbd: get rid of rbd_mapping::read_onlyIlya Dryomov2017-11-131-19/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It is redundant -- rw/ro state is stored in hd_struct and managed by the block layer. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | rbd: fix and simplify rbd_ioctl_set_ro()Ilya Dryomov2017-11-131-28/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ->open_count/-EBUSY check is bogus and wrong: when an open device is set read-only, blkdev_write_iter() refuses further writes with -EPERM. This is standard behaviour and all other block devices allow this. set_disk_ro() call is also problematic: we affect the entire device when called on a single partition. All rbd_ioctl_set_ro() needs to do is refuse ro -> rw transition for mapped snapshots. Everything else can be handled by generic code. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: remove unused and redundant variable droppingColin Ian King2017-11-131-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Variable dropping is set but never read and hence is redundant and can be removed. Cleans up clang warning: fs/ceph/caps.c:1170:2: warning: Value stored to 'dropping' is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: mark expected switch fall-throughsGustavo A. R. Silva2017-11-133-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> [idryomov@gmail.com: amended "Older OSDs" comment] Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: -EINVAL on decoding failure in ceph_mdsc_handle_fsmap()Ilya Dryomov2017-11-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't set ->mdsmap_err to -ENOENT unconditionally, and drop unneeded return statement while at it. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: disable cached readdir after dropping positive dentryYan, Zheng2017-11-131-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ideally CEPH_CAP_FILE_SHARED should have been revoked before postive dentry get dropped. But if something goes wrong, later cached readdir may dereference the dropped dentry. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | ceph: fix bool initialization/comparisonThomas Meyer2017-11-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bool initializations should use true and false. Bool tests don't need comparisons. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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