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

by Greg KH

I'm announcing the release of the 4.14.47 kernel. This is a quick release, reverting one commit in the 4.14.46 networking stack that should not have gotten backported. If 4.14.46 works for you, wonderful, but you really should update to be sure... The updated 4.14.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.14.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- net/ipv4/ip_vti.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) Greg Kroah-Hartman (2): Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU" Linux 4.14.47

7 years, 7 months

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Patches for -stable to improve support for recent gcc versions

by Guenter Roeck

Hi Greg, please apply the following patches. to v4.4-stable and older: cb36af3e48be sh: New gcc support to support gcc 8.1.0 for sh to v4.9-stable and older: 009615ab7fd4 USB: serial: cp210x: use tcflag_t to fix incompatible pointer type to support gcc 7.3.0 for sparc Copying Arnd - I can't get sparc images to compile with gcc 8.1.0. Any idea ? Thanks, Guenter

7 years, 7 months

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Linux 4.9.105

by Greg KH

I'm announcing the release of the 4.9.105 kernel. This is a quick release, reverting one commit in the 4.9.104 networking stack that should not have gotten backported. If 4.9.104 works for you, wonderful, but you really should update to be sure... The updated 4.9.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.9.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- net/ipv4/ip_vti.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) Greg Kroah-Hartman (2): Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU" Linux 4.9.105

7 years, 7 months

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Linux 4.4.135

by Greg KH

I'm announcing the release of the 4.4.135 kernel. This is a quick release, reverting one commit in the 4.4.134 networking stack that should not have gotten backported. If 4.4.134 works for you, wonderful, but you really should update to be sure... The updated 4.4.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.4.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- net/ipv4/ip_vti.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) Greg Kroah-Hartman (2): Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU" Linux 4.4.135

7 years, 7 months

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Linux 3.18.112

by Greg KH

I'm announcing the release of the 3.18.112 kernel. This is a quick release, reverting one commit in the 3.18.111 networking stack that should not have gotten backported. If 3.18.111 works for you, wonderful, but you really should update to be sure... The updated 3.18.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.18.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- net/ipv4/ip_vti.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) Greg Kroah-Hartman (2): Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU" Linux 3.18.112

7 years, 7 months

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[PATCH v3 3/3] x86/mm: add TLB purge to free pmd/pte page interfaces

by Toshi Kani

ioremap() calls pud_free_pmd_page() / pmd_free_pte_page() when it creates a pud / pmd map. The following preconditions are met at their entry. - All pte entries for a target pud/pmd address range have been cleared. - System-wide TLB purges have been peformed for a target pud/pmd address range. The preconditions assure that there is no stale TLB entry for the range. Speculation may not cache TLB entries since it requires all levels of page entries, including ptes, to have P & A-bits set for an associated address. However, speculation may cache pud/pmd entries (paging-structure caches) when they have P-bit set. Add a system-wide TLB purge (INVLPG) to a single page after clearing pud/pmd entry's P-bit. SDM 4.10.4.1, Operation that Invalidate TLBs and Paging-Structure Caches, states that: INVLPG invalidates all paging-structure caches associated with the current PCID regardless of the liner addresses to which they correspond. Fixes: 28ee90fe6048 ("x86/mm: implement free pmd/pte page interfaces") Signed-off-by: Toshi Kani <toshi.kani(a)hpe.com> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: "H. Peter Anvin" <hpa(a)zytor.com> Cc: Joerg Roedel <joro(a)8bytes.org> Cc: <stable(a)vger.kernel.org> --- arch/x86/mm/pgtable.c | 34 ++++++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index f60fdf411103..7e96594c7e97 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -721,24 +721,42 @@ int pmd_clear_huge(pmd_t *pmd) * @pud: Pointer to a PUD. * @addr: Virtual address associated with pud. * - * Context: The pud range has been unmaped and TLB purged. + * Context: The pud range has been unmapped and TLB purged. * Return: 1 if clearing the entry succeeded. 0 otherwise. */ int pud_free_pmd_page(pud_t *pud, unsigned long addr) { - pmd_t *pmd; + pmd_t *pmd, *pmd_sv; + pte_t *pte; int i; if (pud_none(*pud)) return 1; pmd = (pmd_t *)pud_page_vaddr(*pud); + pmd_sv = (pmd_t *)__get_free_page(GFP_KERNEL); + if (!pmd_sv) + return 0; - for (i = 0; i < PTRS_PER_PMD; i++) - if (!pmd_free_pte_page(&pmd[i], addr + (i * PMD_SIZE))) - return 0; + for (i = 0; i < PTRS_PER_PMD; i++) { + pmd_sv[i] = pmd[i]; + if (!pmd_none(pmd[i])) + pmd_clear(&pmd[i]); + } pud_clear(pud); + + /* INVLPG to clear all paging-structure caches */ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE-1); + + for (i = 0; i < PTRS_PER_PMD; i++) { + if (!pmd_none(pmd_sv[i])) { + pte = (pte_t *)pmd_page_vaddr(pmd_sv[i]); + free_page((unsigned long)pte); + } + } + + free_page((unsigned long)pmd_sv); free_page((unsigned long)pmd); return 1; @@ -749,7 +767,7 @@ int pud_free_pmd_page(pud_t *pud, unsigned long addr) * @pmd: Pointer to a PMD. * @addr: Virtual address associated with pmd. * - * Context: The pmd range has been unmaped and TLB purged. + * Context: The pmd range has been unmapped and TLB purged. * Return: 1 if clearing the entry succeeded. 0 otherwise. */ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr) @@ -761,6 +779,10 @@ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr) pte = (pte_t *)pmd_page_vaddr(*pmd); pmd_clear(pmd); + + /* INVLPG to clear all paging-structure caches */ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE-1); + free_page((unsigned long)pte); return 1;

7 years, 7 months

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[Linux-stable-mirror] [PATCH 1/2] bdi: make sure congestion states are clear on free

by Tejun Heo

FUSE has a bug where it fails to clear congestion states if a connection gets aborted while congested, which can leave nr_wb_congested[] stuck until reboot causing wait_iff_congested() to wait spuriously. While the bdi owner, FUSE, is primarily responsible for clearing congestion states before destroying bdi_writebacks, bdi layer can ensure that congestion states are not leaked beyond bdi_writeback lifecycle. Signed-off-by: Tejun Heo <tj(a)kernel.org> Reported-by: Joshua Miller <joshmiller(a)fb.com> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Jan Kara <jack(a)suse.cz> Cc: stable(a)vger.kernel.org --- include/linux/backing-dev.h | 14 +++++++++++++- mm/backing-dev.c | 2 +- 2 files changed, 14 insertions(+), 2 deletions(-) --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -220,6 +220,18 @@ static inline int bdi_sched_wait(void *w return 0; } +static inline void __wb_congested_free(struct bdi_writeback_congested *congested) +{ + /* + * Make sure congestion states are cleared before freeing to avoid + * nr_wb_congested() corruption which can lead to misbehaving + * wait_iff_congested(). + */ + clear_wb_congested(congested, BLK_RW_SYNC); + clear_wb_congested(congested, BLK_RW_ASYNC); + kfree(congested); +} + #ifdef CONFIG_CGROUP_WRITEBACK struct bdi_writeback_congested * @@ -409,7 +421,7 @@ wb_congested_get_create(struct backing_d static inline void wb_congested_put(struct bdi_writeback_congested *congested) { if (atomic_dec_and_test(&congested->refcnt)) - kfree(congested); + __wb_congested_free(congested); } static inline struct bdi_writeback *wb_find_current(struct backing_dev_info *bdi) --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -509,7 +509,7 @@ void wb_congested_put(struct bdi_writeba } spin_unlock_irqrestore(&cgwb_lock, flags); - kfree(congested); + __wb_congested_free(congested); } static void cgwb_release_workfn(struct work_struct *work)

7 years, 7 months

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Build failure for Linux 4.14.45

by Pavlos Parissis

Hi, Building kernel version 4.14.45 fails on me with: DEBUG: builtin-record.c: In function '__cmd_record': DEBUG: builtin-record.c:935:6: error: 'data' undeclared (first use in this function) DEBUG: if (data->is_pipe && rec->evlist->nr_entries == 1) DEBUG: ^ DEBUG: builtin-record.c:935:6: note: each undeclared identifier is reported only once for each function it appears in DEBUG: CC util/evsel_fprintf.o DEBUG: CC builtin-top.o DEBUG: CC util/find_bit.o DEBUG: CC util/kallsyms.o DEBUG: CC builtin-script.o DEBUG: CC util/levenshtein.o DEBUG: CC util/llvm-utils.o DEBUG: mv: cannot stat './.builtin-record.o.tmp': No such file or directory DEBUG: make[3]: *** [builtin-record.o] Error 1 DEBUG: make[3]: *** Waiting for unfinished jobs.... It could be related to f766148e47d7 ("perf record: Fix crash in pipe mode"). Am I the only seeing this failure? Cheers, Pavlos

7 years, 7 months

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[PATCH 3/4] branch-check: fix long->int truncation when profiling branches

by Mikulas Patocka

The function __builtin_expect returns long type (see the gcc documentation), and so do macros likely and unlikely. Unfortunatelly, when CONFIG_PROFILE_ANNOTATED_BRANCHES is selected, the macros likely and unlikely expand to __branch_check__ and __branch_check__ truncates the long type to int. This unintended truncation may cause bugs in various kernel code (we found a bug in dm-writecache because of it), so it's better to fix __branch_check__ to return long. Signed-off-by: Mikulas Patocka <mpatocka(a)redhat.com> Cc: stable(a)vger.kernel.org --- include/linux/compiler.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6/include/linux/compiler.h =================================================================== --- linux-2.6.orig/include/linux/compiler.h 2018-02-26 20:34:17.000000000 +0100 +++ linux-2.6/include/linux/compiler.h 2018-05-30 14:11:53.000000000 +0200 @@ -21,7 +21,7 @@ void ftrace_likely_update(struct ftrace_ #define unlikely_notrace(x) __builtin_expect(!!(x), 0) #define __branch_check__(x, expect, is_constant) ({ \ - int ______r; \ + long ______r; \ static struct ftrace_likely_data \ __attribute__((__aligned__(4))) \ __attribute__((section("_ftrace_annotated_branch"))) \

7 years, 7 months

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[PATCH 1/4] IB/isert: fix T10-pi check mask setting

by Max Gurtovoy

A copy/paste bug (probably) caused setting of an app_tag check mask in case where a ref_tag check was needed. Fixes: 38a2d0d429f1 ("IB/isert: convert to the generic RDMA READ/WRITE API") Fixes: 9e961ae73c2c ("IB/isert: Support T10-PI protected transactions") Cc: stable(a)vger.kernel.org Reviewed-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Max Gurtovoy <maxg(a)mellanox.com> --- drivers/infiniband/ulp/isert/ib_isert.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index fff40b0..d8b6bde 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -2108,7 +2108,7 @@ sig_attrs->check_mask = (se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD ? 0xc0 : 0) | - (se_cmd->prot_checks & TARGET_DIF_CHECK_REFTAG ? 0x30 : 0) | + (se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG ? 0x30 : 0) | (se_cmd->prot_checks & TARGET_DIF_CHECK_REFTAG ? 0x0f : 0); return 0; } -- 1.8.3.1

7 years, 7 months

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