- Linux-stable-mirror - lists.linaro.org

[Linux-stable-mirror] [PATCH-4.1.y 0/7] target: stable backports

by Nicholas A. Bellinger

From: Nicholas Bellinger <nab(a)linux-iscsi.org> Hi Sasha, Here are a target patches outstanding for v4.1.y stable. Note that some of these had not been merged from the last v4.1.y series posted here: http://www.spinics.net/lists/target-devel/msg15916.html Please ensure these get picked up for the next v4.1.y release. The series has been cut against v4.1.45. Please apply at your earliest convenience. Thank you, --nab Bart Van Assche (1): target/iscsi: Fix iSCSI task reassignment handling Jiang Yi (1): iscsi-target: Always wait for kthread_should_stop() before kthread exit Nicholas Bellinger (5): target: Obtain se_node_acl->acl_kref during get_initiator_node_acl target: Fix multi-session dynamic se_node_acl double free OOPs target: Avoid mappedlun symlink creation during lun shutdown Revert "target: Fix VERIFY and WRITE VERIFY command parsing" target: Fix node_acl demo-mode + uncached dynamic shutdown regression drivers/target/iscsi/iscsi_target.c | 49 ++++++++++------ drivers/target/iscsi/iscsi_target_erl0.c | 6 +- drivers/target/iscsi/iscsi_target_erl0.h | 2 +- drivers/target/iscsi/iscsi_target_login.c | 4 ++ drivers/target/target_core_fabric_configfs.c | 5 ++ drivers/target/target_core_sbc.c | 71 +++------------------- drivers/target/target_core_tpg.c | 51 ++++++++++++++-- drivers/target/target_core_transport.c | 88 ++++++++++++++++++---------- include/target/target_core_base.h | 3 + include/target/target_core_fabric.h | 2 + 10 files changed, 163 insertions(+), 118 deletions(-) -- 1.8.5.3

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[Linux-stable-mirror] [PATCH 3.18 00/28] 3.18.81-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 3.18.81 release. There are 28 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Wed Nov 15 12:53:41 UTC 2017. Anything received after that time might be too late. The whole patch series can be found in one patch at: kernel.org/pub/linux/kernel/v3.x/stable-review/patch-3.18.81-rc1.gz or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.18.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 3.18.81-rc1 Borislav Petkov <bp(a)suse.de> x86/oprofile/ppro: Do not use __this_cpu*() in preemptible context Richard Schütz <rschuetz(a)uni-koblenz.de> can: c_can: don't indicate triple sampling support for D_CAN Ilya Dryomov <idryomov(a)gmail.com> rbd: use GFP_NOIO for parent stat and data requests Oswald Buddenhagen <oswald.buddenhagen(a)gmx.de> MIPS: AR7: Ensure that serial ports are properly set up Paul Burton <paul.burton(a)mips.com> MIPS: Fix CM region target definitions Gustavo A. R. Silva <garsilva(a)embeddedor.com> MIPS: microMIPS: Fix incorrect mask in insn_table_MM Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Avoid invalid lockdep class warning Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Fix OSS sysex delivery in OSS emulation Mark Rutland <mark.rutland(a)arm.com> ARM: 8720/1: ensure dump_instr() checks addr_limit Eric Biggers <ebiggers(a)google.com> KEYS: fix NULL pointer dereference during ASN.1 parsing [ver #2] Andrey Ryabinin <aryabinin(a)virtuozzo.com> crypto: x86/sha1-mb - fix panic due to unaligned access Eric Biggers <ebiggers(a)google.com> KEYS: trusted: fix writing past end of buffer in trusted_read() Eric Biggers <ebiggers(a)google.com> KEYS: trusted: sanitize all key material Feras Daoud <ferasda(a)mellanox.com> IB/ipoib: Change list_del to list_del_init in the tx object Akinobu Mita <akinobu.mita(a)gmail.com> Input: mpr121 - set missing event capability Akinobu Mita <akinobu.mita(a)gmail.com> Input: mpr121 - handle multiple bits change of status register Gilad Ben-Yossef <gilad(a)benyossef.com> IPsec: do not ignore crypto err in ah4 input William wu <wulf(a)rock-chips.com> usb: hcd: initialize hcd->flags to 0 when rm hcd Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> serial: sh-sci: Fix register offsets for the IRDA serial port Volodymyr Bendiuga <volodymyr.bendiuga(a)gmail.com> phy: increase size of MII_BUS_ID_SIZE and bus_id David Lechner <david(a)lechnology.com> dt-bindings: Add vendor prefix for LEGO David Lechner <david(a)lechnology.com> dt-bindings: Add LEGO MINDSTORMS EV3 compatible specification Alison Schofield <amsfield22(a)gmail.com> iio: trigger: free trigger resource correctly Tony Lindgren <tony(a)atomide.com> ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6 Noralf Trønnes <noralf(a)tronnes.org> drm: drm_minor_register(): Clean up debugfs on failure Patrick Bruenn <p.bruenn(a)beckhoff.com> ARM: dts: imx53-qsb-common: fix FEC pinmux config Juergen Gross <jgross(a)suse.com> xen/netback: set default upper limit of tx/rx queues to 8 Maciej W. Rozycki <macro(a)linux-mips.org> video: fbdev: pmag-ba-fb: Remove bad `__init' annotation ------------- Diffstat: Documentation/devicetree/bindings/arm/davinci.txt | 4 ++ .../devicetree/bindings/vendor-prefixes.txt | 1 + Makefile | 4 +- arch/arm/boot/dts/imx53-qsb-common.dtsi | 20 +++---- arch/arm/configs/omap2plus_defconfig | 1 + arch/arm/kernel/traps.c | 28 +++++---- arch/mips/ar7/platform.c | 1 + arch/mips/include/asm/mips-cm.h | 4 +- arch/mips/mm/uasm-micromips.c | 2 +- arch/sh/kernel/cpu/sh3/setup-sh770x.c | 1 - arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S | 12 ++-- arch/x86/oprofile/op_model_ppro.c | 4 +- drivers/block/rbd.c | 4 +- drivers/gpu/drm/drm_drv.c | 2 +- drivers/iio/trigger/iio-trig-interrupt.c | 8 +-- drivers/iio/trigger/iio-trig-sysfs.c | 2 +- drivers/infiniband/ulp/ipoib/ipoib_cm.c | 2 +- drivers/input/keyboard/mpr121_touchkey.c | 24 +++++--- drivers/net/can/c_can/c_can_pci.c | 1 - drivers/net/can/c_can/c_can_platform.c | 1 - drivers/net/xen-netback/netback.c | 6 +- drivers/staging/iio/trigger/iio-trig-bfin-timer.c | 4 +- drivers/tty/serial/sh-sci.c | 17 +++--- drivers/usb/core/hcd.c | 1 + drivers/video/fbdev/pmag-ba-fb.c | 2 +- include/linux/phy.h | 8 +-- include/sound/seq_kernel.h | 3 +- lib/asn1_decoder.c | 4 +- net/ipv4/ah4.c | 3 + security/keys/trusted.c | 70 ++++++++++------------ sound/core/seq/oss/seq_oss_midi.c | 4 +- sound/core/seq/oss/seq_oss_readq.c | 29 +++++++++ sound/core/seq/oss/seq_oss_readq.h | 2 + 33 files changed, 162 insertions(+), 117 deletions(-)

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Re: [Linux-stable-mirror] [PATCH 3.16 000/294] 3.16.50-rc1 review

by Greg KH

On Thu, Nov 09, 2017 at 12:40:36PM +0000, Ben Hutchings wrote: > On Thu, 2017-11-09 at 13:21 +0100, Arnd Bergmann wrote: > > On Thu, Nov 9, 2017 at 1:08 PM, Greg KH <greg(a)kroah.com> wrote: > > > On Thu, Nov 09, 2017 at 12:55:30PM +0100, Arnd Bergmann wrote: > [...] > > > > I think if you upload the branch to the stable-rc git, that should produce > > > > the automated build and boot results via email or via the > > > > https://kernelci.org/job/ interface. Once there are some results > > > > there, I'll go through the list once more to see what warnings > > > > and failures remain. > > > > > > I don't know of a way to have others push to that tree/branch at the > > > moment :( > > > > > > I'll go update that branch now... > > > > Thanks! > > > > With the arm-soc tree, we simply have a shared group-id on > > gitolite.kernel.org and everyone in that group can push to it. > > > > If that is the only thing you need, it should be trivial to let Ben > > and Sasha push to /pub/scm/linux/kernel/git/stable/*.git as well, > > I'm sure helpdesk(a)kernel.org can arrange that. Of course if you are > > worried about having multiple accounts with write access to all the > > branches, then that wouldn't be enough. > > I think I'd rather send a pull request to Greg at the start of the > review period. That works for me!

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[Linux-stable-mirror] [patch 127/131] mm/page_ext.c: check if page_ext is not prepared

by akpm＠linux-foundation.org

From: Jaewon Kim <jaewon31.kim(a)samsung.com> Subject: mm/page_ext.c: check if page_ext is not prepared online_page_ext() and page_ext_init() allocate page_ext for each section, but they do not allocate if the first PFN is !pfn_present(pfn) or !pfn_valid(pfn). Then section->page_ext remains as NULL. lookup_page_ext checks NULL only if CONFIG_DEBUG_VM is enabled. For a valid PFN, __set_page_owner will try to get page_ext through lookup_page_ext. Without CONFIG_DEBUG_VM lookup_page_ext will misuse NULL pointer as value 0. This incurrs invalid address access. This is the panic example when PFN 0x100000 is not valid but PFN 0x13FC00 is being used for page_ext. section->page_ext is NULL, get_entry returned invalid page_ext address as 0x1DFA000 for a PFN 0x13FC00. To avoid this panic, CONFIG_DEBUG_VM should be removed so that page_ext will be checked at all times. <1>[ 11.618085] Unable to handle kernel paging request at virtual address 01dfa014 <1>[ 11.618140] pgd = ffffffc0c6dc9000 <1>[ 11.618174] [01dfa014] *pgd=0000000000000000, *pud=0000000000000000 <4>[ 11.618240] ------------[ cut here ]------------ <2>[ 11.618278] Kernel BUG at ffffff80082371e0 [verbose debug info unavailable] <0>[ 11.618338] Internal error: Oops: 96000045 [#1] PREEMPT SMP <4>[ 11.618381] Modules linked in: <4>[ 11.618524] task: ffffffc0c6ec9180 task.stack: ffffffc0c6f40000 <4>[ 11.618569] PC is at __set_page_owner+0x48/0x78 <4>[ 11.618607] LR is at __set_page_owner+0x44/0x78 <4>[ 11.626025] [<ffffff80082371e0>] __set_page_owner+0x48/0x78 <4>[ 11.626071] [<ffffff80081df9f0>] get_page_from_freelist+0x880/0x8e8 <4>[ 11.626118] [<ffffff80081e00a4>] __alloc_pages_nodemask+0x14c/0xc48 <4>[ 11.626165] [<ffffff80081e610c>] __do_page_cache_readahead+0xdc/0x264 <4>[ 11.626214] [<ffffff80081d8824>] filemap_fault+0x2ac/0x550 <4>[ 11.626259] [<ffffff80082e5cf8>] ext4_filemap_fault+0x3c/0x58 <4>[ 11.626305] [<ffffff800820a2f8>] __do_fault+0x80/0x120 <4>[ 11.626347] [<ffffff800820eb4c>] handle_mm_fault+0x704/0xbb0 <4>[ 11.626393] [<ffffff800809ba70>] do_page_fault+0x2e8/0x394 <4>[ 11.626437] [<ffffff8008080be4>] do_mem_abort+0x88/0x124 Pre-4.7 kernels also need f86e427197 ("mm: check the return value of lookup_page_ext for all call sites"). Link: http://lkml.kernel.org/r/20171107094131.14621-1-jaewon31.kim@samsung.com Fixes: eefa864b701d ("mm/page_ext: resurrect struct page extending code for debugging") Signed-off-by: Jaewon Kim <jaewon31.kim(a)samsung.com> Acked-by: Michal Hocko <mhocko(a)suse.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Minchan Kim <minchan(a)kernel.org> Cc: Joonsoo Kim <js1304(a)gmail.com> Cc: <stable(a)vger.kernel.org> [depends on f86e427197, see above] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/page_ext.c | 4 ---- 1 file changed, 4 deletions(-) diff -puN mm/page_ext.c~mm-page_ext-check-if-page_ext-is-not-prepared mm/page_ext.c --- a/mm/page_ext.c~mm-page_ext-check-if-page_ext-is-not-prepared +++ a/mm/page_ext.c @@ -125,7 +125,6 @@ struct page_ext *lookup_page_ext(struct struct page_ext *base; base = NODE_DATA(page_to_nid(page))->node_page_ext; -#if defined(CONFIG_DEBUG_VM) /* * The sanity checks the page allocator does upon freeing a * page can reach here before the page_ext arrays are @@ -134,7 +133,6 @@ struct page_ext *lookup_page_ext(struct */ if (unlikely(!base)) return NULL; -#endif index = pfn - round_down(node_start_pfn(page_to_nid(page)), MAX_ORDER_NR_PAGES); return get_entry(base, index); @@ -199,7 +197,6 @@ struct page_ext *lookup_page_ext(struct { unsigned long pfn = page_to_pfn(page); struct mem_section *section = __pfn_to_section(pfn); -#if defined(CONFIG_DEBUG_VM) /* * The sanity checks the page allocator does upon freeing a * page can reach here before the page_ext arrays are @@ -208,7 +205,6 @@ struct page_ext *lookup_page_ext(struct */ if (!section->page_ext) return NULL; -#endif return get_entry(section->page_ext, pfn); } _

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[Linux-stable-mirror] [patch 120/131] mm/page_alloc.c: broken deferred calculation

by akpm＠linux-foundation.org

From: Pavel Tatashin <pasha.tatashin(a)oracle.com> Subject: mm/page_alloc.c: broken deferred calculation In reset_deferred_meminit() we determine number of pages that must not be deferred. We initialize pages for at least 2G of memory, but also pages for reserved memory in this node. The reserved memory is determined in this function: memblock_reserved_memory_within(), which operates over physical addresses, and returns size in bytes. However, reset_deferred_meminit() assumes that that this function operates with pfns, and returns page count. The result is that in the best case machine boots slower than expected due to initializing more pages than needed in single thread, and in the worst case panics because fewer than needed pages are initialized early. Link: http://lkml.kernel.org/r/20171021011707.15191-1-pasha.tatashin@oracle.com Fixes: 864b9a393dcb ("mm: consider memblock reservations for deferred memory initialization sizing") Signed-off-by: Pavel Tatashin <pasha.tatashin(a)oracle.com> Acked-by: Michal Hocko <mhocko(a)suse.com> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/mmzone.h | 3 ++- mm/page_alloc.c | 27 ++++++++++++++++++--------- 2 files changed, 20 insertions(+), 10 deletions(-) diff -puN include/linux/mmzone.h~mm-broken-deferred-calculation include/linux/mmzone.h --- a/include/linux/mmzone.h~mm-broken-deferred-calculation +++ a/include/linux/mmzone.h @@ -700,7 +700,8 @@ typedef struct pglist_data { * is the first PFN that needs to be initialised. */ unsigned long first_deferred_pfn; - unsigned long static_init_size; + /* Number of non-deferred pages */ + unsigned long static_init_pgcnt; #endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */ #ifdef CONFIG_TRANSPARENT_HUGEPAGE diff -puN mm/page_alloc.c~mm-broken-deferred-calculation mm/page_alloc.c --- a/mm/page_alloc.c~mm-broken-deferred-calculation +++ a/mm/page_alloc.c @@ -291,28 +291,37 @@ EXPORT_SYMBOL(nr_online_nodes); int page_group_by_mobility_disabled __read_mostly; #ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT + +/* + * Determine how many pages need to be initialized durig early boot + * (non-deferred initialization). + * The value of first_deferred_pfn will be set later, once non-deferred pages + * are initialized, but for now set it ULONG_MAX. + */ static inline void reset_deferred_meminit(pg_data_t *pgdat) { - unsigned long max_initialise; - unsigned long reserved_lowmem; + phys_addr_t start_addr, end_addr; + unsigned long max_pgcnt; + unsigned long reserved; /* * Initialise at least 2G of a node but also take into account that * two large system hashes that can take up 1GB for 0.25TB/node. */ - max_initialise = max(2UL << (30 - PAGE_SHIFT), - (pgdat->node_spanned_pages >> 8)); + max_pgcnt = max(2UL << (30 - PAGE_SHIFT), + (pgdat->node_spanned_pages >> 8)); /* * Compensate the all the memblock reservations (e.g. crash kernel) * from the initial estimation to make sure we will initialize enough * memory to boot. */ - reserved_lowmem = memblock_reserved_memory_within(pgdat->node_start_pfn, - pgdat->node_start_pfn + max_initialise); - max_initialise += reserved_lowmem; + start_addr = PFN_PHYS(pgdat->node_start_pfn); + end_addr = PFN_PHYS(pgdat->node_start_pfn + max_pgcnt); + reserved = memblock_reserved_memory_within(start_addr, end_addr); + max_pgcnt += PHYS_PFN(reserved); - pgdat->static_init_size = min(max_initialise, pgdat->node_spanned_pages); + pgdat->static_init_pgcnt = min(max_pgcnt, pgdat->node_spanned_pages); pgdat->first_deferred_pfn = ULONG_MAX; } @@ -339,7 +348,7 @@ static inline bool update_defer_init(pg_ if (zone_end < pgdat_end_pfn(pgdat)) return true; (*nr_initialised)++; - if ((*nr_initialised > pgdat->static_init_size) && + if ((*nr_initialised > pgdat->static_init_pgcnt) && (pfn & (PAGES_PER_SECTION - 1)) == 0) { pgdat->first_deferred_pfn = pfn; return false; _

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[Linux-stable-mirror] [patch 033/131] mm, swap: fix false error message in __swp_swapcount()

by akpm＠linux-foundation.org

From: Huang Ying <huang.ying.caritas(a)gmail.com> Subject: mm, swap: fix false error message in __swp_swapcount() When a page fault occurs for a swap entry, the physical swap readahead (not the VMA base swap readahead) may readahead several swap entries after the fault swap entry. The readahead algorithm calculates some of the swap entries to readahead via increasing the offset of the fault swap entry without checking whether they are beyond the end of the swap device and it relys on the __swp_swapcount() and swapcache_prepare() to check it. Although __swp_swapcount() checks for the swap entry passed in, it will complain with the error message as follow for the expected invalid swap entry. This may make the end users confused. swap_info_get: Bad swap offset entry 0200f8a7 To fix the false error message, the swap entry checking is added in swapin_readahead() to avoid to pass the out-of-bound swap entries and the swap entry reserved for the swap header to __swp_swapcount() and swapcache_prepare(). Link: http://lkml.kernel.org/r/20171102054225.22897-1-ying.huang@intel.com Fixes: e8c26ab60598 ("mm/swap: skip readahead for unreferenced swap slots") Signed-off-by: "Huang, Ying" <ying.huang(a)intel.com> Reported-by: Christian Kujau <lists(a)nerdbynature.de> Acked-by: Minchan Kim <minchan(a)kernel.org> Suggested-by: Minchan Kim <minchan(a)kernel.org> Cc: Tim Chen <tim.c.chen(a)linux.intel.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Hugh Dickins <hughd(a)google.com> Cc: <stable(a)vger.kernel.org> [4.11+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/swap_state.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN mm/swap_state.c~mm-swap-fix-false-error-message-in-__swp_swapcount mm/swap_state.c --- a/mm/swap_state.c~mm-swap-fix-false-error-message-in-__swp_swapcount +++ a/mm/swap_state.c @@ -559,6 +559,7 @@ struct page *swapin_readahead(swp_entry_ unsigned long offset = entry_offset; unsigned long start_offset, end_offset; unsigned long mask; + struct swap_info_struct *si = swp_swap_info(entry); struct blk_plug plug; bool do_poll = true, page_allocated; @@ -572,6 +573,8 @@ struct page *swapin_readahead(swp_entry_ end_offset = offset | mask; if (!start_offset) /* First page is swap header. */ start_offset++; + if (end_offset >= si->max) + end_offset = si->max - 1; blk_start_plug(&plug); for (offset = start_offset; offset <= end_offset ; offset++) { _

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[Linux-stable-mirror] [patch 008/131] ocfs2: should wait dio before inode lock in ocfs2_setattr()

by akpm＠linux-foundation.org

From: alex chen <alex.chen(a)huawei.com> Subject: ocfs2: should wait dio before inode lock in ocfs2_setattr() we should wait dio requests to finish before inode lock in ocfs2_setattr(), otherwise the following deadlock will happen: process 1 process 2 process 3 truncate file 'A' end_io of writing file 'A' receiving the bast messages ocfs2_setattr ocfs2_inode_lock_tracker ocfs2_inode_lock_full inode_dio_wait __inode_dio_wait -->waiting for all dio requests finish dlm_proxy_ast_handler dlm_do_local_bast ocfs2_blocking_ast ocfs2_generic_handle_bast set OCFS2_LOCK_BLOCKED flag dio_end_io dio_bio_end_aio dio_complete ocfs2_dio_end_io ocfs2_dio_end_io_write ocfs2_inode_lock __ocfs2_cluster_lock ocfs2_wait_for_mask -->waiting for OCFS2_LOCK_BLOCKED flag to be cleared, that is waiting for 'process 1' unlocking the inode lock inode_dio_end -->here dec the i_dio_count, but will never be called, so a deadlock happened. Link: http://lkml.kernel.org/r/59F81636.70508@huawei.com Signed-off-by: Alex Chen <alex.chen(a)huawei.com> Reviewed-by: Jun Piao <piaojun(a)huawei.com> Reviewed-by: Joseph Qi <jiangqi903(a)gmail.com> Acked-by: Changwei Ge <ge.changwei(a)h3c.com> Cc: Mark Fasheh <mfasheh(a)versity.com> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/file.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff -puN fs/ocfs2/file.c~ocfs2-should-wait-dio-before-inode-lock-in-ocfs2_setattr fs/ocfs2/file.c --- a/fs/ocfs2/file.c~ocfs2-should-wait-dio-before-inode-lock-in-ocfs2_setattr +++ a/fs/ocfs2/file.c @@ -1161,6 +1161,13 @@ int ocfs2_setattr(struct dentry *dentry, } size_change = S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_SIZE; if (size_change) { + /* + * Here we should wait dio to finish before inode lock + * to avoid a deadlock between ocfs2_setattr() and + * ocfs2_dio_end_io_write() + */ + inode_dio_wait(inode); + status = ocfs2_rw_lock(inode, 1); if (status < 0) { mlog_errno(status); @@ -1200,8 +1207,6 @@ int ocfs2_setattr(struct dentry *dentry, if (status) goto bail_unlock; - inode_dio_wait(inode); - if (i_size_read(inode) >= attr->ia_size) { if (ocfs2_should_order_data(inode)) { status = ocfs2_begin_ordered_truncate(inode, _

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[Linux-stable-mirror] [patch 006/131] ocfs2: fix cluster hang after a node dies

by akpm＠linux-foundation.org

From: Changwei Ge <ge.changwei(a)h3c.com> Subject: ocfs2: fix cluster hang after a node dies When a node dies, other live nodes have to choose a new master for an existed lock resource mastered by the dead node. As for ocfs2/dlm implementation, this is done by function - dlm_move_lockres_to_recovery_list which marks those lock rsources as DLM_LOCK_RES_RECOVERING and manages them via a list from which DLM changes lock resource's master later. So without invoking dlm_move_lockres_to_recovery_list, no master will be choosed after dlm recovery accomplishment since no lock resource can be found through ::resource list. What's worse is that if DLM_LOCK_RES_RECOVERING is not marked for lock resources mastered a dead node, it will break up synchronization among nodes. So invoke dlm_move_lockres_to_recovery_list again. Fixs: 'commit ee8f7fcbe638 ("ocfs2/dlm: continue to purge recovery lockres when recovery master goes down")' Link: http://lkml.kernel.org/r/63ADC13FD55D6546B7DECE290D39E373CED6E0F9@H3CMLB14-… Signed-off-by: Changwei Ge <ge.changwei(a)h3c.com> Reported-by: Vitaly Mayatskih <v.mayatskih(a)gmail.com> Tested-by: Vitaly Mayatskikh <v.mayatskih(a)gmail.com> Cc: Mark Fasheh <mfasheh(a)versity.com> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Joseph Qi <jiangqi903(a)gmail.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/dlm/dlmrecovery.c | 1 + 1 file changed, 1 insertion(+) diff -puN fs/ocfs2/dlm/dlmrecovery.c~ocfs2-fix-cluster-hang-after-a-node-dies fs/ocfs2/dlm/dlmrecovery.c --- a/fs/ocfs2/dlm/dlmrecovery.c~ocfs2-fix-cluster-hang-after-a-node-dies +++ a/fs/ocfs2/dlm/dlmrecovery.c @@ -2419,6 +2419,7 @@ static void dlm_do_local_recovery_cleanu dlm_lockres_put(res); continue; } + dlm_move_lockres_to_recovery_list(dlm, res); } else if (res->owner == dlm->node_num) { dlm_free_dead_locks(dlm, res, dead_node); __dlm_lockres_calc_usage(dlm, res); _

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[Linux-stable-mirror] [stable] sctp: do not peel off an assoc from one netns to another one

by Ben Hutchings

Please can you queue up the following for stable: df80cd9b28b9 sctp: do not peel off an assoc from one netns to another one Ben. -- Ben Hutchings Software Developer, Codethink Ltd.

7 years, 5 months

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[Linux-stable-mirror] [folded-merged] mm-swap-skip-swapcache-for-swapin-of-synchronous-device-fix.patch removed from -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm, swap: fix false error message in __swp_swapcount() has been removed from the -mm tree. Its filename was mm-swap-skip-swapcache-for-swapin-of-synchronous-device-fix.patch This patch was dropped because it was folded into mm-swap-skip-swapcache-for-swapin-of-synchronous-device.patch ------------------------------------------------------ From: Huang Ying <huang.ying.caritas(a)gmail.com> Subject: mm, swap: fix false error message in __swp_swapcount() When a page fault occurs for a swap entry, the physical swap readahead (not the VMA base swap readahead) may readahead several swap entries after the fault swap entry. The readahead algorithm calculates some of the swap entries to readahead via increasing the offset of the fault swap entry without checking whether they are beyond the end of the swap device and it relys on the __swp_swapcount() and swapcache_prepare() to check it. Although __swp_swapcount() checks for the swap entry passed in, it will complain with the error message as follow for the expected invalid swap entry. This may make the end users confused. swap_info_get: Bad swap offset entry 0200f8a7 To fix the false error message, the swap entry checking is added in swapin_readahead() to avoid to pass the out-of-bound swap entries and the swap entry reserved for the swap header to __swp_swapcount() and swapcache_prepare(). Link: http://lkml.kernel.org/r/20171102054225.22897-1-ying.huang@intel.com Fixes: e8c26ab60598 ("mm/swap: skip readahead for unreferenced swap slots") Signed-off-by: "Huang, Ying" <ying.huang(a)intel.com> Reported-by: Christian Kujau <lists(a)nerdbynature.de> Acked-by: Minchan Kim <minchan(a)kernel.org> Suggested-by: Minchan Kim <minchan(a)kernel.org> Cc: Tim Chen <tim.c.chen(a)linux.intel.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Hugh Dickins <hughd(a)google.com> Cc: <stable(a)vger.kernel.org> [4.11+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/swap_state.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN mm/swap_state.c~mm-swap-skip-swapcache-for-swapin-of-synchronous-device-fix mm/swap_state.c --- a/mm/swap_state.c~mm-swap-skip-swapcache-for-swapin-of-synchronous-device-fix +++ a/mm/swap_state.c @@ -559,6 +559,7 @@ struct page *swapin_readahead(swp_entry_ unsigned long offset = entry_offset; unsigned long start_offset, end_offset; unsigned long mask; + struct swap_info_struct *si = swp_swap_info(entry); struct blk_plug plug; bool do_poll = true, page_allocated; @@ -572,6 +573,8 @@ struct page *swapin_readahead(swp_entry_ end_offset = offset | mask; if (!start_offset) /* First page is swap header. */ start_offset++; + if (end_offset >= si->max) + end_offset = si->max - 1; blk_start_plug(&plug); for (offset = start_offset; offset <= end_offset ; offset++) { _ Patches currently in -mm which might be from huang.ying.caritas(a)gmail.com are mm-swap-skip-swapcache-for-swapin-of-synchronous-device.patch

7 years, 5 months

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