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2021-10-18squashfs: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Phillip Lougher <phillip@squashfs.org.uk> Link: https://lore.kernel.org/r/20211018101130.1838532-24-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18reiserfs: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size and remove two cargo culted checks that can't be false. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20211018101130.1838532-23-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18pstore/blk: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211018101130.1838532-22-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18ntfs3: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211018101130.1838532-21-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18nilfs2: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Link: https://lore.kernel.org/r/20211018101130.1838532-20-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18nfs/blocklayout: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211018101130.1838532-19-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18jfs: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com> Link: https://lore.kernel.org/r/20211018101130.1838532-18-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18hfsplus: use bdev_nr_sectors instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211018101130.1838532-17-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18hfs: use bdev_nr_sectors instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211018101130.1838532-16-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18fat: use bdev_nr_sectors instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211018101130.1838532-15-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18cramfs: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20211018101130.1838532-14-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18btrfs: use bdev_nr_bytes instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Acked-by: David Sterba <dsterba@suse.com> Link: https://lore.kernel.org/r/20211018101130.1838532-13-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18affs: use bdev_nr_sectors instead of open coding itChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20211018101130.1838532-12-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18fs: simplify init_page_buffersChristoph Hellwig
No need to convert from bdev to inode and back. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20211018101130.1838532-11-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18fs: use bdev_nr_bytes instead of open coding it in blkdev_max_blockChristoph Hellwig
Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20211018101130.1838532-10-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18io_uring: utilize the io batching infrastructure for more efficient polled IOJens Axboe
Wire up using an io_comp_batch for f_op->iopoll(). If the lower stack supports it, we can handle high rates of polled IO more efficiently. This raises the single core efficiency on my system from ~6.1M IOPS to ~6.6M IOPS running a random read workload at depth 128 on two gen2 Optane drives. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18block: add a struct io_comp_batch argument to fops->iopoll()Jens Axboe
struct io_comp_batch contains a list head and a completion handler, which will allow completions to more effciently completed batches of IO. For now, no functional changes in this patch, we just define the io_comp_batch structure and add the argument to the file_operations iopoll handler. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18treewide: Replace open-coded flex arrays in unionsKees Cook
In support of enabling -Warray-bounds and -Wzero-length-bounds and correctly handling run-time memcpy() bounds checking, replace all open-coded flexible arrays (i.e. 0-element arrays) in unions with the DECLARE_FLEX_ARRAY() helper macro. This fixes warnings such as: fs/hpfs/anode.c: In function 'hpfs_add_sector_to_btree': fs/hpfs/anode.c:209:27: warning: array subscript 0 is outside the bounds of an interior zero-length array 'struct bplus_internal_node[0]' [-Wzero-length-bounds] 209 | anode->btree.u.internal[0].down = cpu_to_le32(a); | ~~~~~~~~~~~~~~~~~~~~~~~^~~ In file included from fs/hpfs/hpfs_fn.h:26, from fs/hpfs/anode.c:10: fs/hpfs/hpfs.h:412:32: note: while referencing 'internal' 412 | struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving | ^~~~~~~~ drivers/net/can/usb/etas_es58x/es58x_fd.c: In function 'es58x_fd_tx_can_msg': drivers/net/can/usb/etas_es58x/es58x_fd.c:360:35: warning: array subscript 65535 is outside the bounds of an interior zero-length array 'u8[0]' {aka 'unsigned char[]'} [-Wzero-length-bounds] 360 | tx_can_msg = (typeof(tx_can_msg))&es58x_fd_urb_cmd->raw_msg[msg_len]; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/net/can/usb/etas_es58x/es58x_core.h:22, from drivers/net/can/usb/etas_es58x/es58x_fd.c:17: drivers/net/can/usb/etas_es58x/es58x_fd.h:231:6: note: while referencing 'raw_msg' 231 | u8 raw_msg[0]; | ^~~~~~~ Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Ayush Sawal <ayush.sawal@chelsio.com> Cc: Vinay Kumar Yadav <vinay.yadav@chelsio.com> Cc: Rohit Maheshwari <rohitm@chelsio.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Luca Coelho <luciano.coelho@intel.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@kernel.org> Cc: Johannes Berg <johannes.berg@intel.com> Cc: Mordechay Goodstein <mordechay.goodstein@intel.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Arunachalam Santhanam <arunachalam.santhanam@in.bosch.com> Cc: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Cc: linux-crypto@vger.kernel.org Cc: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: linux-can@vger.kernel.org Cc: bpf@vger.kernel.org Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # drivers/net/can/usb/etas_es58x/* Signed-off-by: Kees Cook <keescook@chromium.org>
2021-10-18btrfs: Use memset_startat() to clear end of structKees Cook
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memset(), avoid intentionally writing across neighboring fields. Use memset_startat() so memset() doesn't get confused about writing beyond the destination member that is intended to be the starting point of zeroing through the end of the struct. Cc: Chris Mason <clm@fb.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: David Sterba <dsterba@suse.com> Cc: linux-btrfs@vger.kernel.org Reviewed-by: Nikolay Borisov <nborisov@suse.com> Acked-by: David Sterba <dsterba@suse.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2021-10-18iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readableAndreas Gruenbacher
Turn iov_iter_fault_in_readable into a function that returns the number of bytes not faulted in, similar to copy_to_user, instead of returning a non-zero value when any of the requested pages couldn't be faulted in. This supports the existing users that require all pages to be faulted in as well as new users that are happy if any pages can be faulted in. Rename iov_iter_fault_in_readable to fault_in_iov_iter_readable to make sure this change doesn't silently break things. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2021-10-18gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable}Andreas Gruenbacher
Turn fault_in_pages_{readable,writeable} into versions that return the number of bytes not faulted in, similar to copy_to_user, instead of returning a non-zero value when any of the requested pages couldn't be faulted in. This supports the existing users that require all pages to be faulted in as well as new users that are happy if any pages can be faulted in. Rename the functions to fault_in_{readable,writeable} to make sure this change doesn't silently break things. Neither of these functions is entirely trivial and it doesn't seem useful to inline them, so move them to mm/gup.c. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2021-10-18block: switch polling to be bio basedChristoph Hellwig
Replace the blk_poll interface that requires the caller to keep a queue and cookie from the submissions with polling based on the bio. Polling for the bio itself leads to a few advantages: - the cookie construction can made entirely private in blk-mq.c - the caller does not need to remember the request_queue and cookie separately and thus sidesteps their lifetime issues - keeping the device and the cookie inside the bio allows to trivially support polling BIOs remapping by stacking drivers - a lot of code to propagate the cookie back up the submission path can be removed entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Mark Wunderlich <mark.wunderlich@intel.com> Link: https://lore.kernel.org/r/20211012111226.760968-15-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18io_uring: don't sleep when polling for I/OChristoph Hellwig
There is no point in sleeping for the expected I/O completion timeout in the io_uring async polling model as we never poll for a specific I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Mark Wunderlich <mark.wunderlich@intel.com> Link: https://lore.kernel.org/r/20211012111226.760968-11-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18block: replace the spin argument to blk_iopoll with a flags argumentChristoph Hellwig
Switch the boolean spin argument to blk_poll to passing a set of flags instead. This will allow to control polling behavior in a more fine grained way. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Mark Wunderlich <mark.wunderlich@intel.com> Link: https://lore.kernel.org/r/20211012111226.760968-10-hch@lst.de [axboe: adapt to changed io_uring iopoll] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18io_uring: fix a layering violation in io_iopoll_req_issuedChristoph Hellwig
syscall-level code can't just poke into the details of the poll cookie, which is private information of the block layer. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20211012111226.760968-5-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18iomap: don't try to poll multi-bio I/Os in __iomap_dio_rwChristoph Hellwig
If an iocb is split into multiple bios we can't poll for both. So don't bother to even try to poll in that case. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Mark Wunderlich <mark.wunderlich@intel.com> Link: https://lore.kernel.org/r/20211012111226.760968-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18direct-io: remove blk_poll supportChristoph Hellwig
The polling support in the legacy direct-io support is a little crufty. It already doesn't support the asynchronous polling needed for io_uring polling, and is hard to adopt to upcoming changes in the polling interfaces. Given that all the major file systems already use the iomap direct I/O code, just drop the polling support. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Mark Wunderlich <mark.wunderlich@intel.com> Link: https://lore.kernel.org/r/20211012111226.760968-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18mm: don't include <linux/blkdev.h> in <linux/backing-dev.h>Christoph Hellwig
Move inode_to_bdi out of line to avoid having to include blkdev.h. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20210920123328.1399408-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18mm: don't include <linux/blk-cgroup.h> in <linux/backing-dev.h>Christoph Hellwig
There is no need to pull blk-cgroup.h and thus blkdev.h in here, so break the include chain. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20210920123328.1399408-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18mm: don't include <linux/blk-cgroup.h> in <linux/writeback.h>Christoph Hellwig
blk-cgroup.h pulls in blkdev.h and thus pretty much all the block headers. Break this dependency chain by turning wbc_blkcg_css into a macro and dropping the blk-cgroup.h include. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20210920123328.1399408-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18mm/writeback: Add folio_redirty_for_writepage()Matthew Wilcox (Oracle)
Reimplement redirty_page_for_writepage() as a wrapper around folio_redirty_for_writepage(). Account the number of pages in the folio, add kernel-doc and move the prototype to writeback.h. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: David Howells <dhowells@redhat.com> Acked-by: Vlastimil Babka <vbabka@suse.cz>
2021-10-18Merge 5.15-rc6 into driver-core-nextGreg Kroah-Hartman
We need the driver-core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-17Merge tag 'io_uring-5.15-2021-10-17' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull io_uring fix from Jens Axboe: "Just a single fix for a wrong condition for grabbing a lock, a regression in this merge window" * tag 'io_uring-5.15-2021-10-17' of git://git.kernel.dk/linux-block: io_uring: fix wrong condition to grab uring lock
2021-10-17Merge tag 'driver-core-5.15-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are some small driver core fixes for 5.15-rc6, all of which have been in linux-next for a while with no reported issues. They include: - kernfs negative dentry bugfix - simple pm bus fixes to resolve reported issues" * tag 'driver-core-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: drivers: bus: Delete CONFIG_SIMPLE_PM_BUS drivers: bus: simple-pm-bus: Add support for probing simple bus only devices driver core: Reject pointless SYNC_STATE_ONLY device links kernfs: don't create a negative dentry if inactive node exists
2021-10-18erofs: get compression algorithms directly on mappingGao Xiang
Currently, z_erofs_map_blocks_iter() returns whether extents are compressed or not, and the decompression frontend gets the specific algorithms then. It works but not quite well in many aspests, for example: - The decompression frontend has to deal with whether extents are compressed or not again and lookup the algorithms if compressed. It's duplicated and too detailed about the on-disk mapping. - A new secondary compression head will be introduced later so that each file can have 2 compression algorithms at most for different type of data. It could increase the complexity of the decompression frontend if still handled in this way; - A new readmore decompression strategy will be introduced to get better performance for much bigger pcluster and lzma, which needs the specific algorithm in advance as well. Let's look up compression algorithms in z_erofs_map_blocks_iter() directly instead. Link: https://lore.kernel.org/r/20211008200839.24541-2-xiang@kernel.org Reviewed-by: Chao Yu <chao@kernel.org> Reviewed-by: Yue Hu <huyue2@yulong.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2021-10-18erofs: add multiple device supportGao Xiang
In order to support multi-layer container images, add multiple device feature to EROFS. Two ways are available to use for now: - Devices can be mapped into 32-bit global block address space; - Device ID can be specified with the chunk indexes format. Note that it assumes no extent would cross device boundary and mkfs should take care of it seriously. In the future, a dedicated device manager could be introduced then thus extra devices can be automatically scanned by UUID as well. Link: https://lore.kernel.org/r/20211014081010.43485-1-hsiangkao@linux.alibaba.com Reviewed-by: Chao Yu <chao@kernel.org> Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2021-10-17erofs: decouple basic mount options from fs_contextGao Xiang
Previously, EROFS mount options are all in the basic types, so erofs_fs_context can be directly copied with assignment. However, when the multiple device feature is introduced, it's hard to handle multiple device information like the other basic mount options. Let's separate basic mount option usage from fs_context, thus multiple device information can be handled gracefully then. No logic changes. Link: https://lore.kernel.org/r/20211007070224.12833-1-hsiangkao@linux.alibaba.com Reviewed-by: Chao Yu <chao@kernel.org> Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2021-10-15nfsd: update create verifier commentJ. Bruce Fields
I don't know if that Solaris behavior matters any more or if it's still possible to look up that bug ID any more. The XFS behavior's definitely still relevant, though; any but the most recent XFS filesystems will lose the top bits. Reported-by: Frank S. Filz <ffilzlnx@mindspring.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2021-10-15ksmbd: validate credit charge after validating SMB2 PDU body sizeRalph Boehme
smb2_validate_credit_charge() accesses fields in the SMB2 PDU body, but until smb2_calc_size() is called the PDU has not yet been verified to be large enough to access the PDU dynamic part length field. Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Ralph Boehme <slow@samba.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-10-15ksmbd: add buffer validation for smb directHyunchul Lee
Add buffer validation for smb direct. Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-10-15ksmbd: limit read/write/trans buffer size not to exceed 8MBNamjae Jeon
ksmbd limit read/write/trans buffer size not to exceed maximum 8MB. And set the minimum value of max response buffer size to 64KB. Windows client doesn't send session setup request if ksmbd set max trans/read/write size lower than 64KB in smb2 negotiate. It means windows allow at least 64 KB or more about this value. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-10-15Merge tag 'ntfs3_for_5.15' of ↵Linus Torvalds
git://github.com/Paragon-Software-Group/linux-ntfs3 Pull ntfs3 fixes from Konstantin Komarov: "Use the new api for mounting as requested by Christoph. Also fixed: - some memory leaks and panic - xfstests (tested on x86_64) generic/016 generic/021 generic/022 generic/041 generic/274 generic/423 - some typos, wrong returned error codes, dead code, etc" * tag 'ntfs3_for_5.15' of git://github.com/Paragon-Software-Group/linux-ntfs3: (70 commits) fs/ntfs3: Check for NULL pointers in ni_try_remove_attr_list fs/ntfs3: Refactor ntfs_read_mft fs/ntfs3: Refactor ni_parse_reparse fs/ntfs3: Refactor ntfs_create_inode fs/ntfs3: Refactor ntfs_readlink_hlp fs/ntfs3: Rework ntfs_utf16_to_nls fs/ntfs3: Fix memory leak if fill_super failed fs/ntfs3: Keep prealloc for all types of files fs/ntfs3: Remove unnecessary functions fs/ntfs3: Forbid FALLOC_FL_PUNCH_HOLE for normal files fs/ntfs3: Refactoring of ntfs_set_ea fs/ntfs3: Remove locked argument in ntfs_set_ea fs/ntfs3: Use available posix_acl_release instead of ntfs_posix_acl_release fs/ntfs3: Check for NULL if ATTR_EA_INFO is incorrect fs/ntfs3: Refactoring of ntfs_init_from_boot fs/ntfs3: Reject mount if boot's cluster size < media sector size fs/ntfs3: Refactoring lock in ntfs_init_acl fs/ntfs3: Change posix_acl_equiv_mode to posix_acl_update_mode fs/ntfs3: Pass flags to ntfs_set_ea in ntfs_set_acl_ex fs/ntfs3: Refactor ntfs_get_acl_ex for better readability ...
2021-10-15proc: Use task_is_running() for wchan in /proc/$pid/statKees Cook
The implementations of get_wchan() can be expensive. The only information imparted here is whether or not a process is currently blocked in the scheduler (and even this doesn't need to be exact). Avoid doing the heavy lifting of stack walking and just report that information by using task_is_running(). Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20211008111626.211281780@infradead.org
2021-10-15Revert "proc/wchan: use printk format instead of lookup_symbol_name()"Kees Cook
This reverts commit 152c432b128cb043fc107e8f211195fe94b2159c. When a kernel address couldn't be symbolized for /proc/$pid/wchan, it would leak the raw value, a potential information exposure. This is a regression compared to the safer pre-v5.12 behavior. Reported-by: kernel test robot <oliver.sang@intel.com> Reported-by: Vito Caputo <vcaputo@pengaru.com> Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20211008111626.090829198@infradead.org
2021-10-14xfs: remove the xfs_dqblk_t typedefChristoph Hellwig
Remove the few leftover instances of the xfs_dinode_t typedef. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-10-14xfs: remove the xfs_dsb_t typedefChristoph Hellwig
Remove the few leftover instances of the xfs_dinode_t typedef. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-10-14xfs: remove the xfs_dinode_t typedefChristoph Hellwig
Remove the few leftover instances of the xfs_dinode_t typedef. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-10-14xfs: check that bc_nlevels never overflowsDarrick J. Wong
Warn if we ever bump nlevels higher than the allowed maximum cursor height. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Chandan Babu R <chandan.babu@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-10-14xfs: stricter btree height checking when scanning for btree rootsDarrick J. Wong
When we're scanning for btree roots to rebuild the AG headers, make sure that the proposed tree does not exceed the maximum height for that btree type (and not just XFS_BTREE_MAXLEVELS). Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
2021-10-14xfs: stricter btree height checking when looking for errorsDarrick J. Wong
Since each btree type has its own precomputed maxlevels variable now, use them instead of the generic XFS_BTREE_MAXLEVELS to check the level of each per-AG btree. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>