- 10 Feb, 2015 40 commits
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Dmitry Monakhov authored
__generic_block_fiemap may spin very long time for large sparse files. Without this patch an unprivileged user may abuse system resources simply by spawning a vast number of unkilable busyloops (works on ext2/ext3): truncate --size 1T test for ((i=0;i<1024;i++)) do filefrag test > /dev/null & done Signed-off-by:Dmitry Monakhov <dmonakhov@openvz.org> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Srinivas Eeda authored
A tiny race between BAST and unlock message causes the NULL dereference. A node sends an unlock request to master and receives a response. Before processing the response it receives a BAST from the master. Since both requests are processed by different threads it creates a race. While the BAST is being processed, lock can get freed by unlock code. This patch makes bast to return immediately if lock is found but unlock is pending. The code should handle this race. We also have to fix master node to skip sending BAST after receiving unlock message. Below is the crash stack BUG: unable to handle kernel NULL pointer dereference at 0000000000000048 IP: o2dlm_blocking_ast_wrapper+0xd/0x16 dlm_do_local_bast+0x8e/0x97 [ocfs2_dlm] dlm_proxy_ast_handler+0x838/0x87e [ocfs2_dlm] o2net_process_message+0x395/0x5b8 [ocfs2_nodemanager] o2net_rx_until_empty+0x762/0x90d [ocfs2_nodemanager] worker_thread+0x14d/0x1ed [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:Srinivas Eeda <srinivas.eeda@oracle.com> Reviewed-by:
Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Joseph Qi <joseph.qi@huawei.com> Signed-off-by:
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alex chen authored
In ocfs2_dentry_convert_worker, we should prune the dcache before deleting the dentry of directory, otherwise, in the following cases the inode of directory will still remain in orphan directory until the device being umounted. Mount point: /mnt/ocfs2 Node A Node B mkdir /mnt/ocfs2/testdir ocfs2_mkdir ->ocfs2_mknod ->ocfs2_dentry_attach_lock ->ocfs2_dentry_lock(dentry, 0) ... ... touch /mnt/ocfs2/testdir/testfile unlink /mnt/test/testdir/testfile rmdir /mnt/ocfs2/testdir ocfs2_unlink ->ocfs2_remote_dentry_delete ->ocfs2_dentry_lock(dentry, 1) ... ... ... ... ocfs2_downconvert_thread ->ocfs2_unblock_lock ->ocfs2_dentry_convert_worker ->ocfs2_find_local_alias ->dget_dlock ->d_delete Here the dentry can not be released because the children's dentry is negative but still exist. Finally, this inode will still remain in orphan directory until its children are destroyed. So before deleting dentry of directory, we should prune the dcache to remove unused children of the parent dentry by shrink_dcache_parent(). Signed-off-by:Alex Chen <alex.chen@huawei.com> Reviewed-by:
Joseph Qi <joseph.qi@huawei.com> Reviewed-by:
joyce.xue <xuejiufei@huawei.com> Reviewed-by:
Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Fabian Frederick authored
resv_lock is only used in reservations.c Signed-off-by:
Fabian Frederick <fabf@skynet.be> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Daeseok Youn authored
Signed-off-by:
Daeseok Youn <daeseok.youn@gmail.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Daeseok Youn authored
mlog_errno() is called twice when some functions are failed. Signed-off-by:
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Daeseok Youn authored
Signed-off-by:
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Dan Carpenter authored
Smatch complains that, if o2net_tx_can_proceed() returns false, then "sc" and "ret" are uninialized or maybe we are re-using the data from previous iteration. I do not know if we can hit this bug in real life but checking the return value is harmless and we may as well silence the static checker warning. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Jan Kara authored
The assigned value is never used. Coverity-id 1226847. Signed-off-by:
Jan Kara <jack@suse.cz> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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alex chen authored
Add a mount option to support JBD2 feature: JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT. When this feature is opened, journal commit block can be written to disk without waiting for descriptor blocks, which can improve journal commit performance. This option will enable 'journal_checksum' internally. Using the fs_mark benchmark, using journal_async_commit shows a 50% improvement, the files per second go up from 215.2 to 317.5. test script: fs_mark -d /mnt/ocfs2/ -s 10240 -n 1000 default: FSUse% Count Size Files/sec App Overhead 0 1000 10240 215.2 17878 with journal_async_commit option: FSUse% Count Size Files/sec App Overhead 0 1000 10240 317.5 17881 Signed-off-by:Weiwei Wang <wangww631@huawei.comm> Reviewed-by:
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alex chen authored
Similar to ocfs2_write_end_nolock() which is metioned at commit 136f49b9 ("ocfs2: fix journal commit deadlock"), we should unlock pages before ocfs2_commit_trans() in ocfs2_convert_inline_data_to_extents. Otherwise, it will cause a deadlock with journal commit threads. Signed-off-by:
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Rickard Strandqvist authored
Remove dlm_joined() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by:
Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Rickard Strandqvist authored
Remove ol_dqblk_file_block() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by:
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Rickard Strandqvist authored
Remove ocfs2_xattr_bucket_get_val() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by:
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alex chen authored
Use snprintf format specifier "%lu" instead of "%ld" for argument of type 'unsigned long'. Signed-off-by:
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Junxiao Bi authored
O2NET_CONN_IDLE_DELAY is not defined, connection attempts will not be canceled due to timeout. Signed-off-by:
Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Junxiao Bi authored
Variable "why" is not yet initialized at line 615, fix it. Signed-off-by:
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Fabian Frederick authored
else is unnecessary after return. Signed-off-by:
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Xue jiufei authored
When the recovery master is down, the owner of $RECOVERY calls dlm_do_local_recovery_cleanup() to prune any $RECOVERY entries for dead nodes. The lock is in the granted list and the refcount must be 2. We should put twice to remove this lock. Otherwise, it will lead to a memory leak. Signed-off-by:
yangwenfang <vicky.yangwenfang@huawei.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by:
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Kevin Cernekee authored
Defining these macros way down in arch/sh/.../irq.c doesn't cause kernel/irq/generic-chip.c to use them. As far as I can tell this code has no effect. Fixes: 332fd7c4 ("genirq: Generic chip: Change irq_reg_{readl,writel} arguments") Signed-off-by:
Kevin Cernekee <cernekee@gmail.com> Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> (cpp/asm comparison) Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by:
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Rob Landley authored
What sh4 actually wants is HAVE_PATA_PLATFORM, so select that instead. Signed-off-by:
Rob Landley <rob@landley.net> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Acked-by:
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Jan Kara authored
Commit e9fd702a ("audit: convert audit watches to use fsnotify instead of inotify") broke handling of renames in audit. Audit code wants to update inode number of an inode corresponding to watched name in a directory. When something gets renamed into a directory to a watched name, inotify previously passed moved inode to audit code however new fsnotify code passes directory inode where the change happened. That confuses audit and it starts watching parent directory instead of a file in a directory. This can be observed for example by doing: cd /tmp touch foo bar auditctl -w /tmp/foo touch foo mv bar foo touch foo In audit log we see events like: type=CONFIG_CHANGE msg=audit(1423563584.155:90): auid=1000 ses=2 op="updated rules" path="/tmp/foo" key=(null) list=4 res=1 ... type=PATH msg=audit(1423563584.155:91): item=2 name="bar" inode=1046884 dev=08:0 2 mode=0100644 ouid=0 ogid=0 rdev=00:00 nametype=DELETE type=PATH msg=audit(1423563584.155:91): item=3 name="foo" inode=1046842 dev=08:0 2 mode=0100644 ouid=0 ogid=0 rdev=00:00 nametype=DELETE type=PATH msg=audit(1423563584.155:91): item=4 name="foo" inode=1046884 dev=08:0 2 mode=0100644 ouid=0 ogid=0 rdev=00:00 nametype=CREATE ... and that's it - we see event for the first touch after creating the audit rule, we see events for rename but we don't see any event for the last touch. However we start seeing events for unrelated stuff happening in /tmp. Fix the problem by passing moved inode as data in the FS_MOVED_FROM and FS_MOVED_TO events instead of the directory where the change happens. This doesn't introduce any new problems because noone besides audit_watch.c cares about the passed value: fs/notify/fanotify/fanotify.c cares only about FSNOTIFY_EVENT_PATH events. fs/notify/dnotify/dnotify.c doesn't care about passed 'data' value at all. fs/notify/inotify/inotify_fsnotify.c uses 'data' only for FSNOTIFY_EVENT_PATH. kernel/audit_tree.c doesn't care about passed 'data' at all. kernel/audit_watch.c expects moved inode as 'data'. Fixes: e9fd702a ("audit: convert audit watches to use fsnotify instead of inotify") Signed-off-by:
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Zhang Zhen authored
The inotify interface has changed a lot. The user interface was too old, and the kernel interface was removed by Eric Paris in commit: 2dfc1cae inotify: remove inotify in kernel interface. Signed-off-by:
Zhang Zhen <zhenzhang.zhang@huawei.com> Cc: Wang Kai <morgan.wang@huawei.com> Cc: Eric Paris <eparis@parisplace.org> Cc: Robert Love <robert.w.love@intel.com> Cc: John McCutchan <john@johnmccutchan.com> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Acked-by:
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Lino Sanfilippo authored
Currently FAN_ONDIR is always set on a mark's ignored mask when the event mask is extended without FAN_MARK_ONDIR being set. This may result in events for directories being ignored unexpectedly for call sequences like fanotify_mark(fd, FAN_MARK_ADD, FAN_OPEN | FAN_ONDIR , AT_FDCWD, "dir"); fanotify_mark(fd, FAN_MARK_ADD, FAN_CLOSE, AT_FDCWD, "dir"); Also FAN_MARK_ONDIR is only honored when adding events to a mark's mask, but not for event removal. Fix both issues by not setting FAN_ONDIR implicitly on the ignore mask any more. Instead treat FAN_ONDIR as any other event flag and require FAN_MARK_ONDIR to be set by the user for both event mask and ignore mask. Furthermore take FAN_MARK_ONDIR into account when set for event removal. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Lino Sanfilippo <LinoSanfilippo@gmx.de> Reviewed-by:
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Lino Sanfilippo authored
If removing bits from a mark's ignored mask, the concerning inodes/vfsmounts mask is not affected. So don't recalculate it. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
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Lino Sanfilippo authored
In fanotify_mark_remove_from_mask() a mark is destroyed if only one of both bitmasks (mask or ignored_mask) of a mark is cleared. However the other mask may still be set and contain information that should not be lost. So only destroy a mark if both masks are cleared. Signed-off-by:
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Kirill A. Shutemov authored
After commit 944d9fec ("hugetlb: add support for gigantic page allocation at runtime") we can allocate 1G pages at runtime if CMA is enabled. Let's register 1G pages into hugetlb even if the user hasn't requested them explicitly at boot time with hugepagesz=1G. Signed-off-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by:
Luiz Capitulino <lcapitulino@redhat.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libataLinus Torvalds authored
Pull libata changes from Tejun Heo: "Mostly driver-specific changes. Nothing too noteworthy. This pull request contains three merges from for-3.19-fixes. The first two are to pull ahci_xgene and sata_dwc_460ex fix commits which are depended upon by later changes. The last one is to pull in a fix patch which missed the v3.19-rc window" * 'for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (24 commits) ahci_xgene: Fix the dma state machine lockup for the ATA_CMD_SMART PIO mode command. ata: libahci: Use of_platform_device_create only if supported sata_mv: Delete unnecessary checks before the function call "phy_power_off" ata: Delete unnecessary checks before the function call "pci_dev_put" ata: pata_platform: fix owner module reference mismatch for scsi host ata: ahci_platform: fix owner module reference mismatch for scsi host pata_pdc2027x: Use 64-bit timekeeping ata: libahci: Fix devres cleanup on failure ata: libahci: Allow using multiple regulators Documentation: bindings: Add the regulator property to the sub-nodes AHCI bindings ata: libahci: Clean-up the ahci_platform_en/disable_phys functions sata_rcar: extend PM methods sata_dwc_460ex: disable compilation on ARM and ARM64 ata: libata-core: Remove unused function sata_dwc_460ex: convert to devm_kzalloc in ->probe() sata_dwc_460ex: remove extra message sata_dwc_460ex: use np local variable in ->probe() sata_dwc_460ex: fix most of the sparse warnings sata_dwc_460ex: enable COMPILE_TEST for the driver sata_dwc_460ex: remove redundant dev_set_drvdata ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds authored
Pull workqueue changes from Tejun Heo: "One cosmetic cleanup patch" * 'for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue.h: remove loops of single statement macros
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup changes from Tejun Heo: "Three mostly trivial patches. The biggest change is that blkio is now initialized before memcg which will be needed to make memcg and blkcg cooperate on writeback IOs" * 'for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: add dummy css_put() for !CONFIG_CGROUPS cgroup: reorder SUBSYS(blkio) in cgroup_subsys.h Update of Documentation/cgroups/00-INDEX
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpuLinus Torvalds authored
Pull percpu changes from Tejun Heo: "Nothing too interesting. One cleanup patch and another to add a trivial state check function" * 'for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu_ref: implement percpu_ref_is_dying() percpu_ref: remove unnecessary ACCESS_ONCE() in percpu_ref_tryget_live()
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git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds authored
Pull EDAC updates from Borislav Petkov: - a new synopsys_edac.c driver for the Synopsys DDR controller, from Punnaiah Choudary Kalluri. - minor fixes/cleanups all around - Mauro and I are adding the repo URLs to MAINTAINERS since people asked for trees to base upcoming work on. * tag 'edac_for_3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC: Add repo URLs to MAINTAINERS EDAC, mv64x60_edac: Fix an error code in probe() EDAC: edac_mc_sysfs: Make stuff static EDAC: Fix the leak of mci->bus->name when bus_register fails edac: i5100_edac: Remove unused i5100_recmema_dm_buf_id EDAC, synps: Add EDAC support for zynq ddr ecc controller mpc85xx_edac: Fix a typo in comments EDAC, mce_amd_inj: Fix sparse non static symbol warning
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 RAS update from Ingo Molnar: "The changes in this cycle were: - allow mmcfg access to APEI error injection handlers - improve MCE error messages - smaller cleanups" * 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, mce: Fix sparse errors x86, mce: Improve timeout error messages ACPI, EINJ: Enhance error injection tolerance level
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 mm cleanups from Ingo Molnar: "Two cleanups: simplify parse_setup_data() and sanitize_e820_map() usage" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, e820: Clean up sanitize_e820_map() users x86, setup: Let early_memremap() handle page alignment
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 SoC updates from Ingo Molnar: "Various Intel Atom SoC updates (mostly to enhance debuggability), plus an apb_timer cleanup" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: pmc_atom: Expose contents of PSS x86: pmc_atom: Clean up init function x86: pmc-atom: Remove unused macro x86: pmc_atom: don%27t check for NULL twice x86: pmc-atom: Assign debugfs node as soon as possible x86/platform: Remove unused function from apb_timer.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fpu updates from Ingo Molnar: "Initial round of kernel_fpu_begin/end cleanups from Oleg Nesterov, plus a cleanup from Borislav Petkov" * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, fpu: Fix math_state_restore() race with kernel_fpu_begin() x86, fpu: Don't abuse has_fpu in __kernel_fpu_begin/end() x86, fpu: Introduce per-cpu in_kernel_fpu state x86/fpu: Use a symbolic name for asm operand
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI updates from Ingo Molnar: "Main changes: - Move efivarfs from the misc filesystem section to pseudo filesystem - Expose firmware platform size in sysfs - Improve robustness of get_memory_map() by removing assumptions on the size of efi_memory_desc_t. - various cleanups and fixes The biggest risk is the get_memory_map() change, which changes the way that both the arm64 and x86 EFI boot stub build the early memory map. There are no known regressions with it at the moment, BYMMV" * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: Don't look for chosen@0 node on DT platforms firmware: efi: Remove unneeded guid unparse efi/libstub: Call get_memory_map() to obtain map and desc sizes efi: Small leak on error in runtime map code efi: rtc-efi: Mark UIE as unsupported arm64/efi: efistub: Apply __init annotation efi: Expose underlying UEFI firmware platform size to userland efi: Rename efi_guid_unparse to efi_guid_to_str efi: Update the URLs for efibootmgr fs: Make efivarfs a pseudo filesystem, built by default with EFI -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cleanups from Ingo Molnar: "Misc cleanups" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/rtc: Remove duplicate const specifier x86, early_serial_console: Remove unnecessary check x86, early_serial_console: Remove unused macro XMTRDY x86, setup: Rename BOOT_ISDIGIT_H to BOOT_CTYPE_H x86, CPU: Fix trivial printk formatting issues with dmesg
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 asm changes from Ingo Molnar: "The main changes in this cycle were the x86/entry and sysret enhancements from Andy Lutomirski, see merge commits 772a9aca and b57c0b51 for details" [ Exectutive summary: IST exceptions that interrupt user space will run on the regular kernel stack instead of the IST stack. Which simplifies things particularly on return to user space. The sysret cleanup ends up simplifying the logic on when we can use sysret vs when we have to use iret. - Linus ] * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86_64, entry: Remove the syscall exit audit and schedule optimizations x86_64, entry: Use sysret to return to userspace when possible x86, traps: Fix ist_enter from userspace x86, vdso: teach 'make clean' remove vdso64 binaries x86_64 entry: Fix RCX for ptraced syscalls x86: entry_64.S: fold SAVE_ARGS_IRQ macro into its sole user x86: ia32entry.S: fix wrong symbolic constant usage: R11->ARGOFFSET x86: entry_64.S: delete unused code x86, mce: Get rid of TIF_MCE_NOTIFY and associated mce tricks x86, traps: Add ist_begin_non_atomic and ist_end_non_atomic x86: Clean up current_stack_pointer x86, traps: Track entry into and exit from IST context x86, entry: Switch stacks on a paranoid entry from userspace
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 APIC updates from Ingo Molnar: "Continued fallout of the conversion of the x86 IRQ code to the hierarchical irqdomain framework: more cleanups, simplifications, memory allocation behavior enhancements, mainly in the interrupt remapping and APIC code" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) x86, init: Fix UP boot regression on x86_64 iommu/amd: Fix irq remapping detection logic x86/acpi: Make acpi_[un]register_gsi_ioapic() depend on CONFIG_X86_LOCAL_APIC x86: Consolidate boot cpu timer setup x86/apic: Reuse apic_bsp_setup() for UP APIC setup x86/smpboot: Sanitize uniprocessor init x86/smpboot: Move apic init code to apic.c init: Get rid of x86isms x86/apic: Move apic_init_uniprocessor code x86/smpboot: Cleanup ioapic handling x86/apic: Sanitize ioapic handling x86/ioapic: Add proper checks to setp/enable_IO_APIC() x86/ioapic: Provide stub functions for IOAPIC%3Dn x86/smpboot: Move smpboot inlines to code x86/x2apic: Use state information for disable x86/x2apic: Split enable and setup function x86/x2apic: Disable x2apic from nox2apic setup x86/x2apic: Add proper state tracking x86/x2apic: Clarify remapping mode for x2apic enablement x86/x2apic: Move code in conditional region ...
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