[pull] master from torvalds:master #766
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The following reproducer
mkdir lower upper work merge
touch lower/old
touch lower/new
mount -t overlay overlay -olowerdir=lower,upperdir=upper,workdir=work merge
rm merge/new
mv merge/old merge/new & unlink upper/new
may result in this race:
PROCESS A:
rename("merge/old", "merge/new");
overwrite=true,ovl_lower_positive(old)=true,
ovl_dentry_is_whiteout(new)=true -> flags |= RENAME_EXCHANGE
PROCESS B:
unlink("upper/new");
PROCESS A:
lookup newdentry in new_upperdir
call vfs_rename() with negative newdentry and RENAME_EXCHANGE
Fix by adding the missing check for negative newdentry.
Signed-off-by: Zheng Liang <zhengliang6@huawei.com>
Fixes: e9be9d5 ("overlay filesystem")
Cc: <stable@vger.kernel.org> # v3.18
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Normally the check at open time suffices, but e.g loop device does set IOCB_DIRECT after doing its own checks (which are not sufficent for overlayfs). Make sure we don't call the underlying filesystem read/write method with the IOCB_DIRECT if it's not supported. Reported-by: Huang Jianan <huangjianan@oppo.com> Fixes: 16914e6 ("ovl: add ovl_read_iter()") Cc: <stable@vger.kernel.org> # v4.19 Tested-by: Huang Jianan <huangjianan@oppo.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This reverts commit 6decd1a. CPULAUNCH register is not set properly by some bootloaders, causing a regression until a bootloader change is made, which is hard if not impossible on some embedded devices. Revert the change until a more robust core detection mechanism that works on MT7621S routers such as Netgear R6220 as well as platforms like Digi EX15 can be made. Link: https://lore.kernel.org/lkml/4d9e3b39-7caa-d372-5d7b-42dcec36fec7@kernel.org Fixes: 6decd1a ("MIPS: add support for buggy MT7621S core detection") Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Acked-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Acked-by: Greg Ungerer <gerg@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The input_system_configure_channel_sensor() function lost its final return code in a previous patch: drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c: In function 'input_system_configure_channel_sensor': drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c:1649:1: error: control reaches end of non-void function [-Werror=return-type] Restore what was there originally. Link: https://lore.kernel.org/linux-media/20210802143820.1150099-1-arnd@kernel.org Fixes: 728a5c6 ("media: atomisp: remove dublicate code") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
…ernel/git/mips/linux Pull MIPS fix from Thomas Bogendoerfer: "Revert workaround for buggy cpu detection because regressions" * tag 'mips-fixes_5.15_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: Revert "add support for buggy MT7621S core detection"
…kernel/git/mszeredi/vfs Pull overlayfs fixes from Miklos Szeredi: "Fix two bugs, both of them corner cases not affecting most users" * tag 'ovl-fixes-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: fix IOCB_DIRECT if underlying fs doesn't support direct IO ovl: fix missing negative dentry check in ovl_rename()
…l/git/mchehab/linux-media Pull media fix from Mauro Carvalho Chehab: "There's just one patch here, fixing a -Werror issue at staging/atomisp" * tag 'media/v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: atomisp: restore missing 'return' statement
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Oct 8, 2022
This patch fix the follwing checkpatch warnings: WARNING: quoted string split across lines #129: FILE: drivers/staging/vme_user/vme_tsi148.c:129: + dev_err(tsi148_bridge->parent, "VME Mailbox %d received" + ": 0x%x\n", i, val); WARNING: quoted string split across lines #147: FILE: drivers/staging/vme_user/vme_tsi148.c:147: + dev_err(tsi148_bridge->parent, "PCI Exception at address: 0x%08x:%08x, " + "attributes: %08x\n", WARNING: quoted string split across lines #153: FILE: drivers/staging/vme_user/vme_tsi148.c:153: + dev_err(tsi148_bridge->parent, "PCI-X attribute reg: %08x, PCI-X split " + "completion reg: %08x\n", WARNING: quoted string split across lines #185: FILE: drivers/staging/vme_user/vme_tsi148.c:185: + dev_err(tsi148_bridge->parent, "VME Bus Exception Overflow " + "Occurred\n"); WARNING: quoted string split across lines #321: FILE: drivers/staging/vme_user/vme_tsi148.c:321: + dev_err(tsi148_bridge->parent, "Can't get assigned pci irq " + "vector %02X\n", pdev->irq); WARNING: quoted string split across lines #533: FILE: drivers/staging/vme_user/vme_tsi148.c:533: + dev_err(tsi148_bridge->parent, "Invalid PCI Offset " + "alignment\n"); WARNING: space prohibited before semicolon #591: FILE: drivers/staging/vme_user/vme_tsi148.c:591: + temp_ctl |= TSI148_LCSR_ITAT_SUPR ; WARNING: quoted string split across lines #766: FILE: drivers/staging/vme_user/vme_tsi148.c:766: + dev_err(tsi148_bridge->parent, "Failed to allocate mem " + "resource for window %d size 0x%lx start 0x%lx\n", WARNING: quoted string split across lines #831: FILE: drivers/staging/vme_user/vme_tsi148.c:831: + dev_err(tsi148_bridge->parent, "Invalid VME Window " + "alignment\n"); WARNING: quoted string split across lines #838: FILE: drivers/staging/vme_user/vme_tsi148.c:838: + dev_err(tsi148_bridge->parent, "Size must be non-zero for " + "enabled windows\n"); WARNING: quoted string split across lines #853: FILE: drivers/staging/vme_user/vme_tsi148.c:853: + dev_err(tsi148_bridge->parent, "Unable to allocate memory for " + "resource\n"); WARNING: quoted string split across lines #894: FILE: drivers/staging/vme_user/vme_tsi148.c:894: + dev_err(tsi148_bridge->parent, "Invalid VME Offset " + "alignment\n"); WARNING: quoted string split across lines #941: FILE: drivers/staging/vme_user/vme_tsi148.c:941: + dev_warn(tsi148_bridge->parent, "Currently not setting " + "Broadcast Select Registers\n"); WARNING: quoted string split across lines #1455: FILE: drivers/staging/vme_user/vme_tsi148.c:1455: + dev_err(dev, "Currently not setting Broadcast Select " + "Registers\n"); WARNING: quoted string split across lines #1554: FILE: drivers/staging/vme_user/vme_tsi148.c:1554: + dev_err(dev, "Currently not setting Broadcast Select " + "Registers\n"); WARNING: quoted string split across lines #1643: FILE: drivers/staging/vme_user/vme_tsi148.c:1643: + dev_err(tsi148_bridge->parent, "Descriptor not aligned to 8 " + "byte boundary as required: %p\n", WARNING: else is not generally useful after a break or return #1830: FILE: drivers/staging/vme_user/vme_tsi148.c:1830: + return -EBUSY; + } else { warning: quoted string split across lines #1939: file: drivers/staging/vme_user/vme_tsi148.c:1939: + dev_err(tsi148_bridge->parent, "location monitor " + "callback attached, can't reset\n"); WARNING: space prohibited before semicolon #1964: FILE: drivers/staging/vme_user/vme_tsi148.c:1964: + lm_ctl |= TSI148_LCSR_LMAT_SUPR ; WARNING: quoted string split across lines #2055: FILE: drivers/staging/vme_user/vme_tsi148.c:2055: + dev_err(tsi148_bridge->parent, "Location monitor not properly " + "configured\n"); WARNING: quoted string split across lines #2200: FILE: drivers/staging/vme_user/vme_tsi148.c:2200: + dev_err(tsi148_bridge->parent, "Failed to allocate memory for " + "CR/CSR image\n"); WARNING: quoted string split across lines #2241: FILE: drivers/staging/vme_user/vme_tsi148.c:2241: + dev_err(tsi148_bridge->parent, "Configuring flush image" + " failed\n"); Signed-off-by: Mingyi Kang <jerrykang026@gmail.com> Link: https://lore.kernel.org/r/20220730045726.55452-1-jerrykang026@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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