- 10 Oct, 2019 1 commit
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Al Viro authored
->parse_monolithic() there forgets to call security_sb_eat_lsm_opts() Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 26 Sep, 2019 1 commit
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David Howells authored
The mounting of jffs2 is broken due to the changes from the new mount API because it specifies a "source" operation, but then doesn't actually process it. But because it specified it, it doesn't return -ENOPARAM and the caller doesn't process it either and the source gets lost. Fix this by simply removing the source parameter from jffs2 and letting the VFS deal with it in the default manner. To test it, enable CONFIG_MTD_MTDRAM and allow the default size and erase block size parameters, then try and mount the /dev/mtdblock<N> file that that creates as jffs2. No need to initialise it. Fixes: ec10a24f ("vfs: Convert jffs2 to use the new mount API") Reported-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
David Howells <dhowells@redhat.com> cc: David Woodhouse <dwmw2@infradead.org> cc: Richard Weinberger <richard@nod.at> cc: linux-mtd@lists.infradead.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 19 Sep, 2019 6 commits
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Andrew Price authored
Convert gfs2 and gfs2meta to fs_context. Removes the duplicated vfs code from gfs2_mount and instead uses the new vfs_get_block_super() before switching the ->root to the appropriate dentry. The mount option parsing has been converted to the new API and error reporting for invalid options has been made more precise at the same time. All of the mount/remount code has been moved into ops_fstype.c Signed-off-by:
Andrew Price <anprice@redhat.com> Signed-off-by:
David Howells <dhowells@redhat.com> cc: cluster-devel@redhat.com Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the spufs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> cc: Jeremy Kerr <jk@ozlabs.org> cc: Arnd Bergmann <arnd@arndb.de> cc: linuxppc-dev@lists.ozlabs.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the hypfs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> cc: Martin Schwidefsky <schwidefsky@de.ibm.com> cc: Heiko Carstens <heiko.carstens@de.ibm.com> cc: linux-s390@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
In hypfs_fill_super(), if hypfs_create_update_file() fails, sbi->update_file is left holding an error number. This is passed to hypfs_kill_super() which doesn't check for this. Fix this by not setting sbi->update_value until after we've checked for error. Fixes: 24bbb1fa ("[PATCH] s390_hypfs filesystem") Signed-off-by:
David Howells <dhowells@redhat.com> cc: Martin Schwidefsky <schwidefsky@de.ibm.com> cc: Heiko Carstens <heiko.carstens@de.ibm.com> cc: linux-s390@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the functionfs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> Acked-by:
Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by:
Michal Nazarewicz <mina86@mina86.com> cc: linux-usb@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the bpf filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> cc: Alexei Starovoitov <ast@kernel.org> cc: Daniel Borkmann <daniel@iogearbox.net> cc: Martin KaFai Lau <kafai@fb.com> cc: Song Liu <songliubraving@fb.com> cc: Yonghong Song <yhs@fb.com> cc: netdev@vger.kernel.org cc: bpf@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 13 Sep, 2019 6 commits
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David Howells authored
Make fs_parse() handle fs_param_is_fd-type parameters that are passed a string by converting it to an integer (in addition to handling direct fd specification). Also range check the integer. [fix from Yin Fengwei folded] Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the ramfs, shmem, tmpfs, devtmpfs and rootfs filesystems to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Note that tmpfs is slightly tricky as it can contain embedded commas, so it can't be trivially split up using strsep() to break on commas in generic_parse_monolithic(). Instead, tmpfs has to supply its own generic parser. However, if tmpfs changes, then devtmpfs and rootfs, which are wrappers around tmpfs or ramfs, must change too - and thus so must ramfs, so these had to be converted also. [AV: rewritten] Signed-off-by:
David Howells <dhowells@redhat.com> cc: Hugh Dickins <hughd@google.com> cc: linux-mm@kvack.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
This thing will eventually become our ->parse_param(), while shmem_parse_options() - ->parse_monolithic(). At that point shmem_parse_options() will start calling vfs_parse_fs_string(), rather than calling shmem_parse_one() directly. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
mechanical move. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
just use ctx->mpol (note that callers always set ctx->mpol to NULL when calling that). Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
... and copy the data from it into sbinfo in the callers. For use by remount we need to keep track whether there'd been options setting max_inodes, max_blocks and huge resp. and do the sanity checks (and copying) only if such options had been seen. uid/gid/mode is ignored by remount and NULL mpol is already explicitly treated as "ignore it", so we don't need to keep track of those. Note: theoretically, mpol_parse_string() may return NULL not in case of error (for default policy), so the assumption that NULL mpol means "change nothing" is incorrect. However, that's the mainline behaviour and any changes belong in a separate patch. If we go for that, we'll need to keep track of having encountered mpol= option too. [changes in remount logics from Hugh Dickins folded] Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 05 Sep, 2019 13 commits
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Al Viro authored
... have callers use shmem_mount() Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
all users should just call ramfs_mount() Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Create an internal-only type matching the current devtmpfs, never register it and have one kernel-internal mount done. That thing gets mounted only once, so it is free to use mount_nodev(). The "public" devtmpfs (the one we do register, and only after the internal mount of the real thing is done) simply gets and returns an extra reference to the internal superblock. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the squashfs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> cc: Phillip Lougher <phillip@squashfs.org.uk> cc: squashfs-devel@lists.sourceforge.net Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Kill mount_mtd() as it has now been replaced by vfs_get_mtd_super() in the new mount API and nothing now uses it. Signed-off-by:
David Howells <dhowells@redhat.com> cc: David Woodhouse <dwmw2@infradead.org> cc: Brian Norris <computersforpeace@gmail.com> cc: Boris Brezillon <bbrezillon@kernel.org> cc: Marek Vasut <marek.vasut@gmail.com> cc: Richard Weinberger <richard@nod.at> cc: linux-mtd@lists.infradead.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the jffs2 filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> cc: David Woodhouse <dwmw2@infradead.org> cc: linux-mtd@lists.infradead.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the cramfs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> Tested-by:
Nicolas Pitre <nico@fluxnic.net> Acked-by:
Nicolas Pitre <nico@fluxnic.net> cc: linux-mtd@lists.infradead.org cc: linux-block@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Convert the romfs filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by:
David Howells <dhowells@redhat.com> cc: linux-mtd@lists.infradead.org cc: linux-block@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Add an additional keying mode to vfs_get_super() to indicate that only a single superblock should exist in the system, and that, if it does, further mounts should invoke reconfiguration upon it. This allows mount_single() to be replaced. [Fix by Eric Biggers folded in] Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Provide a function, get_tree_mtd(), to replace mount_mtd(), using an fs_context struct to hold the parameters. Signed-off-by:
David Howells <dhowells@redhat.com> cc: David Woodhouse <dwmw2@infradead.org> cc: Brian Norris <computersforpeace@gmail.com> cc: Boris Brezillon <bbrezillon@kernel.org> cc: Marek Vasut <marek.vasut@gmail.com> cc: Richard Weinberger <richard@nod.at> cc: linux-mtd@lists.infradead.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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David Howells authored
Create a function, get_tree_bdev(), that is fs_context-aware and a ->get_tree() counterpart of mount_bdev(). It caches the block device pointer in the fs_context struct so that this information can be passed into sget_fc()'s test and set functions. Signed-off-by:
David Howells <dhowells@redhat.com> cc: Jens Axboe <axboe@kernel.dk> cc: linux-block@vger.kernel.org Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
For vfs_get_keyed_super users. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Eric Biggers authored
fs_context::user_ns is used by fuse_parse_param(), even during remount, so it needs to be set to the existing value for reconfigure. Reproducer: #include <fcntl.h> #include <sys/mount.h> int main() { char opts[128]; int fd = open("/dev/fuse", O_RDWR); sprintf(opts, "fd=%d,rootmode=040000,user_id=0,group_id=0", fd); mkdir("mnt", 0777); mount("foo", "mnt", "fuse.foo", 0, opts); mount("foo", "mnt", "fuse.foo", MS_REMOUNT, opts); } Crash: BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 0 PID: 129 Comm: syz_make_kuid Not tainted 5.3.0-rc5-next-20190821 #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-20181126_142135-anatol 04/01/2014 RIP: 0010:map_id_range_down+0xb/0xc0 kernel/user_namespace.c:291 [...] Call Trace: map_id_down kernel/user_namespace.c:312 [inline] make_kuid+0xe/0x10 kernel/user_namespace.c:389 fuse_parse_param+0x116/0x210 fs/fuse/inode.c:523 vfs_parse_fs_param+0xdb/0x1b0 fs/fs_context.c:145 vfs_parse_fs_string+0x6a/0xa0 fs/fs_context.c:188 generic_parse_monolithic+0x85/0xc0 fs/fs_context.c:228 parse_monolithic_mount_data+0x1b/0x20 fs/fs_context.c:708 do_remount fs/namespace.c:2525 [inline] do_mount+0x39a/0xa60 fs/namespace.c:3107 ksys_mount+0x7d/0xd0 fs/namespace.c:3325 __do_sys_mount fs/namespace.c:3339 [inline] __se_sys_mount fs/namespace.c:3336 [inline] __x64_sys_mount+0x20/0x30 fs/namespace.c:3336 do_syscall_64+0x4a/0x1a0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Reported-by: syzbot+7d6a57304857423318a5@syzkaller.appspotmail.com Fixes: 408cbe695350 ("vfs: Convert fuse to use the new mount API") Cc: David Howells <dhowells@redhat.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by:
Eric Biggers <ebiggers@google.com> Reviewed-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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- 18 Aug, 2019 11 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linuxLinus Torvalds authored
Pull MTD fix from Richard Weinberger: "A single fix for MTD to correctly set the spi-nor WP pin" * tag 'fixes-for-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: mtd: spi-nor: Fix the disabling of write protection at init
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs fixes from David Sterba: "Two fixes that popped up during testing: - fix for sysfs-related code that adds/removes block groups, warnings appear during several fstests in connection with sysfs updates in 5.3, the fix essentially replaces a workaround with scope NOFS and applies to 5.2-based branch too - add sanity check of trim range" * tag 'for-5.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: trim: Check the range passed into to prevent overflow Btrfs: fix sysfs warning and missing raid sysfs directories
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "A set of fixes for x86: - Fix the inconsistent error handling in the umwait init code - Rework the boot param zeroing so gcc9 stops complaining about out of bound memset. The resulting source code is actually more sane to read than the smart solution we had - Maintainers update so Tony gets involved when Intel models are added - Some more fallthrough fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Save fields explicitly, zero out everything else MAINTAINERS, x86/CPU: Tony Luck will maintain asm/intel-family.h x86/fpu/math-emu: Address fallthrough warnings x86/apic/32: Fix yet another implicit fallthrough warning x86/umwait: Fix error handling in umwait_init()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI fix from Thomas Gleixner: "A single fix for a EFI mixed mode regression caused by recent rework which did not take the firmware bitwidth into account" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi-stub: Fix get_efi_config_table on mixed-mode setups
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdxLinus Torvalds authored
Pull SPDX fixes from Greg KH: "Here are four small SPDX fixes for 5.3-rc5. A few style fixes for some SPDX comments, added an SPDX tag for one file, and fix up some GPL boilerplate for another file. All of these have been in linux-next for a few weeks with no reported issues (they are comment changes only, so that's to be expected...)" * tag 'spdx-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: i2c: stm32: Use the correct style for SPDX License Identifier intel_th: Use the correct style for SPDX License Identifier coccinelle: api/atomic_as_refcounter: add SPDX License Identifier kernel/configs: Replace GPL boilerplate code with SPDX identifier
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are some small char and misc driver fixes for 5.3-rc5. These are two different subsystems needing some fixes, the habanalabs driver which is has some more big endian fixes for problems found. The other are some small soundwire fixes, including some Kconfig dependencies needed to resolve reported build errors. All of these have been in linux-next this week with no reported issues" * tag 'char-misc-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: misc: xilinx-sdfec: fix dependency and build error habanalabs: fix device IRQ unmasking for BE host habanalabs: fix endianness handling for internal QMAN submission habanalabs: fix completion queue handling when host is BE habanalabs: fix endianness handling for packets from user habanalabs: fix DRAM usage accounting on context tear down habanalabs: Avoid double free in error flow soundwire: fix regmap dependencies and align with other serial links soundwire: cadence_master: fix definitions for INTSTAT0/1 soundwire: cadence_master: fix register definition for SLAVE_STATE
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging/IIO fixes from Greg KH: "Here are four small staging and iio driver fixes for 5.3-rc5 Two are for the dt3000 comedi driver for some reported problems found in that codebase, and two are some small iio fixes. All of these have been in linux-next this week with no reported issues" * tag 'staging-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: comedi: dt3000: Fix rounding up of timer divisor staging: comedi: dt3000: Fix signed integer overflow 'divider * base' iio: adc: max9611: Fix temperature reading in probe iio: frequency: adf4371: Fix output frequency setting
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are number of small USB fixes for 5.3-rc5. Syzbot has been on a tear recently now that it has some good USB debugging hooks integrated, so there's a number of fixes in here found by those tools for some _very_ old bugs. Also a handful of gadget driver fixes for reported issues, some hopefully-final dma fixes for host controller drivers, and some new USB serial gadget driver ids. All of these have been in linux-next this week with no reported issues (the usb-serial ones were in linux-next in its own branch, but merged into mine on Friday)" * tag 'usb-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: add a hcd_uses_dma helper usb: don't create dma pools for HCDs with a localmem_pool usb: chipidea: imx: fix EPROBE_DEFER support during driver probe usb: host: fotg2: restart hcd after port reset USB: CDC: fix sanity checks in CDC union parser usb: cdc-acm: make sure a refcount is taken early enough USB: serial: option: add the BroadMobi BM818 card USB: serial: option: Add Motorola modem UARTs USB: core: Fix races in character device registration and deregistraion usb: gadget: mass_storage: Fix races between fsg_disable and fsg_set_alt usb: gadget: composite: Clear "suspended" on reset/disconnect usb: gadget: udc: renesas_usb3: Fix sysfs interface of "role" USB: serial: option: add D-Link DWM-222 device ID USB: serial: option: Add support for ZTE MF871A
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "A collection of fixes that should go into this series. This contains: - Revert of the REQ_NOWAIT_INLINE and associated dio changes. There were still corner cases there, and even though I had a solution for it, it's too involved for this stage. (me) - Set of NVMe fixes (via Sagi) - io_uring fix for fixed buffers (Anthony) - io_uring defer issue fix (Jackie) - Regression fix for queue sync at exit time (zhengbin) - xen blk-back memory leak fix (Wenwen)" * tag 'for-linus-2019-08-17' of git://git.kernel.dk/linux-block: io_uring: fix an issue when IOSQE_IO_LINK is inserted into defer list block: remove REQ_NOWAIT_INLINE io_uring: fix manual setup of iov_iter for fixed buffers xen/blkback: fix memory leaks blk-mq: move cancel of requeue_work to the front of blk_exit_queue nvme-pci: Fix async probe remove race nvme: fix controller removal race with scan work nvme-rdma: fix possible use-after-free in connect error flow nvme: fix a possible deadlock when passthru commands sent to a multipath device nvme-core: Fix extra device_put() call on error path nvmet-file: fix nvmet_file_flush() always returning an error nvmet-loop: Flush nvme_delete_wq when removing the port nvmet: Fix use-after-free bug when a port is removed nvme-multipath: revalidate nvme_ns_head gendisk in nvme_validate_ns
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linuxLinus Torvalds authored
Pull Hyper-V fixes from Sasha Levin: - A few fixes for the userspace hyper-v tools from Adrian Vladu. - A fix for the hyper-v MAINTAINERs entry from Lan Tianyu. - Fix for SPDX license identifier in the userspace tools from Nishad Kamdar. * tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: MAINTAINERS: Fix Hyperv vIOMMU driver file name tools: hv: Use the correct style for SPDX License Identifier tools: hv: fix typos in toolchain tools: hv: fix KVP and VSS daemons exit code tools: hv: fixed Python pep8/flake8 warnings for lsvmbus
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- 17 Aug, 2019 2 commits
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Lan Tianyu authored
The Hyperv vIOMMU file name should be "hyperv-iommu.c" rather than "hyperv_iommu.c". This patch is to fix it. Signed-off-by:
Lan Tianyu <Tianyu.Lan@microsoft.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Nishad Kamdar authored
This patch corrects the SPDX License Identifier style in the trace header file related to Microsoft Hyper-V client drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used) Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46Suggested-by:
Joe Perches <joe@perches.com> Signed-off-by:
Nishad Kamdar <nishadkamdar@gmail.com> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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