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2019-07-18Merge tag 'xfs-5.3-merge-13' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds2-2/+6
Pull xfs cleanups from Darrick Wong: "We had a few more lateish cleanup patches come in for 5.3 -- a couple of syncups with the userspace libxfs code and a conversion of the XFS administrator's guide to ReST format. Summary: - Bring fs/xfs/libxfs/xfs_trans_inode.c in sync with userspace libxfs. - Convert the xfs administrator guide to rst and move it into the official admin guide under Documentation" * tag 'xfs-5.3-merge-13' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: Documentation: filesystem: Convert xfs.txt to ReST xfs: sync up xfs_trans_inode with userspace xfs: move xfs_trans_inode.c to libxfs/
2019-07-18Merge tag 'libnvdimm-for-5.3' of ↵Linus Torvalds1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "Primarily just the virtio_pmem driver: - virtio_pmem The new virtio_pmem facility introduces a paravirtualized persistent memory device that allows a guest VM to use DAX mechanisms to access a host-file with host-page-cache. It arranges for MAP_SYNC to be disabled and instead triggers a host fsync() when a 'write-cache flush' command is sent to the virtual disk device. - Miscellaneous small fixups" * tag 'libnvdimm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: virtio_pmem: fix sparse warning xfs: disable map_sync for async flush ext4: disable map_sync for async flush dax: check synchronous mapping is supported dm: enable synchronous dax libnvdimm: add dax_dev sync flag virtio-pmem: Add virtio pmem driver libnvdimm: nd_region flush callback support libnvdimm, namespace: Drop uuid_t implementation detail
2019-07-15Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+1
Pull more block updates from Jens Axboe: "A later pull request with some followup items. I had some vacation coming up to the merge window, so certain things items were delayed a bit. This pull request also contains fixes that came in within the last few days of the merge window, which I didn't want to push right before sending you a pull request. This contains: - NVMe pull request, mostly fixes, but also a few minor items on the feature side that were timing constrained (Christoph et al) - Report zones fixes (Damien) - Removal of dead code (Damien) - Turn on cgroup psi memstall (Josef) - block cgroup MAINTAINERS entry (Konstantin) - Flush init fix (Josef) - blk-throttle low iops timing fix (Konstantin) - nbd resize fixes (Mike) - nbd 0 blocksize crash fix (Xiubo) - block integrity error leak fix (Wenwen) - blk-cgroup writeback and priority inheritance fixes (Tejun)" * tag 'for-linus-20190715' of git://git.kernel.dk/linux-block: (42 commits) MAINTAINERS: add entry for block io cgroup null_blk: fixup ->report_zones() for !CONFIG_BLK_DEV_ZONED block: Limit zone array allocation size sd_zbc: Fix report zones buffer allocation block: Kill gfp_t argument of blkdev_report_zones() block: Allow mapping of vmalloc-ed buffers block/bio-integrity: fix a memory leak bug nvme: fix NULL deref for fabrics options nbd: add netlink reconfigure resize support nbd: fix crash when the blksize is zero block: Disable write plugging for zoned block devices block: Fix elevator name declaration block: Remove unused definitions nvme: fix regression upon hot device removal and insertion blk-throttle: fix zero wait time for iops throttled group block: Fix potential overflow in blk_report_zones() blkcg: implement REQ_CGROUP_PUNT blkcg, writeback: Implement wbc_blkcg_css() blkcg, writeback: Add wbc->no_cgroup_owner blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner() ...
2019-07-15xfs: sync up xfs_trans_inode with userspaceEric Sandeen1-0/+4
Add an XFS_ICHGTIME_CREATE case to xfs_trans_ichgtime() to keep in sync with userspace. (Currently no kernel caller sends this flag.) Signed-off-by: Eric Sandeen <[email protected]> Reviewed-by: Brian Foster <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-07-15xfs: move xfs_trans_inode.c to libxfs/Eric Sandeen2-2/+2
Userspace now has an identical xfs_trans_inode.c which it has already moved to libxfs/ so do the same move for kernelspace. Signed-off-by: Eric Sandeen <[email protected]> Reviewed-by: Brian Foster <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-07-12Merge tag 'xfs-5.3-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds160-4703/+4397
Pull xfs updates from Darrick Wong: "In this release there are a significant amounts of consolidations and cleanups in the log code; restructuring of the log to issue struct bios directly; new bulkstat ioctls to return v5 fs inode information (and fix all the padding problems of the old ioctl); the beginnings of multithreaded inode walks (e.g. quotacheck); and a reduction in memory usage in the online scrub code leading to reduced runtimes. - Refactor inode geometry calculation into a single structure instead of open-coding pieces everywhere. - Add online repair to build options. - Remove unnecessary function call flags and functions. - Claim maintainership of various loose xfs documentation and header files. - Use struct bio directly for log buffer IOs instead of struct xfs_buf. - Reduce log item boilerplate code requirements. - Merge log item code spread across too many files. - Further distinguish between log item commits and cancellations. - Various small cleanups to the ag small allocator. - Support cgroup-aware writeback - libxfs refactoring for mkfs cleanup - Remove unneeded #includes - Fix a memory allocation miscalculation in the new log bio code - Fix bisection problems - Fix a crash in ioend processing caused by tripping over freeing of preallocated transactions - Split out a generic inode walk mechanism from the bulkstat code, hook up all the internal users to use the walking code, then clean up bulkstat to serve only the bulkstat ioctls. - Add a multithreaded iwalk implementation to speed up quotacheck on fast storage with many CPUs. - Remove unnecessary return values in logging teardown functions. - Supplement the bstat and inogrp structures with new bulkstat and inumbers structures that have all the fields we need for v5 filesystem features and none of the padding problems of their predecessors. - Wire up new ioctls that use the new structures with a much simpler bulk_ireq structure at the head instead of the pointerhappy mess we had before. - Enable userspace to constrain bulkstat returns to a single AG or a single special inode so that we can phase out a lot of geometry guesswork in userspace. - Reduce memory consumption and zeroing overhead in extended attribute scrub code. - Fix some behavioral regressions in the new bulkstat backend code. - Fix some behavioral regressions in the new log bio code" * tag 'xfs-5.3-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (100 commits) xfs: chain bios the right way around in xfs_rw_bdev xfs: bump INUMBERS cursor correctly in xfs_inumbers_walk xfs: don't update lastino for FSBULKSTAT_SINGLE xfs: online scrub needn't bother zeroing its temporary buffer xfs: only allocate memory for scrubbing attributes when we need it xfs: refactor attr scrub memory allocation function xfs: refactor extended attribute buffer pointer functions xfs: attribute scrub should use seen_enough to pass error values xfs: allow single bulkstat of special inodes xfs: specify AG in bulk req xfs: wire up the v5 inumbers ioctl xfs: wire up new v5 bulkstat ioctls xfs: introduce v5 inode group structure xfs: introduce new v5 bulkstat structure xfs: rename bulkstat functions xfs: remove various bulk request typedef usage fs: xfs: xfs_log: Change return type from int to void xfs: poll waiting for quotacheck xfs: multithreaded iwalk implementation xfs: refactor INUMBERS to use iwalk functions ...
2019-07-12Merge tag 'vfs-fix-ioctl-checking-3' of ↵Linus Torvalds1-85/+69
git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull common SETFLAGS/FSSETXATTR parameter checking from Darrick Wong: "Here's a patch series that sets up common parameter checking functions for the FS_IOC_SETFLAGS and FS_IOC_FSSETXATTR ioctl implementations. The goal here is to reduce the amount of behaviorial variance between the filesystems where those ioctls originated (ext2 and XFS, respectively) and everybody else. - Standardize parameter checking for the SETFLAGS and FSSETXATTR ioctls (which were the file attribute setters for ext4 and xfs and have now been hoisted to the vfs) - Only allow the DAX flag to be set on files and directories" * tag 'vfs-fix-ioctl-checking-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: vfs: only allow FSSETXATTR to set DAX flag on files and dirs vfs: teach vfs_ioc_fssetxattr_check to check extent size hints vfs: teach vfs_ioc_fssetxattr_check to check project id info vfs: create a generic checking function for FS_IOC_FSSETXATTR vfs: create a generic checking and prep function for FS_IOC_SETFLAGS
2019-07-10Merge tag 'copy-file-range-fixes-1' of ↵Linus Torvalds1-14/+1
git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull copy_file_range updates from Darrick Wong: "This fixes numerous parameter checking problems and inconsistent behaviors in the new(ish) copy_file_range system call. Now the system call will actually check its range parameters correctly; refuse to copy into files for which the caller does not have sufficient privileges; update mtime and strip setuid like file writes are supposed to do; and allows copying up to the EOF of the source file instead of failing the call like we used to. Summary: - Create a generic copy_file_range handler and make individual filesystems responsible for calling it (i.e. no more assuming that do_splice_direct will work or is appropriate) - Refactor copy_file_range and remap_range parameter checking where they are the same - Install missing copy_file_range parameter checking(!) - Remove suid/sgid and update mtime like any other file write - Change the behavior so that a copy range crossing the source file's eof will result in a short copy to the source file's eof instead of EINVAL - Permit filesystems to decide if they want to handle cross-superblock copy_file_range in their local handlers" * tag 'copy-file-range-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: fuse: copy_file_range needs to strip setuid bits and update timestamps vfs: allow copy_file_range to copy across devices xfs: use file_modified() helper vfs: introduce file_modified() helper vfs: add missing checks to copy_file_range vfs: remove redundant checks from generic_remap_checks() vfs: introduce generic_file_rw_checks() vfs: no fallback for ->copy_file_range vfs: introduce generic_copy_file_range()
2019-07-10xfs: chain bios the right way around in xfs_rw_bdevChristoph Hellwig1-1/+1
We need to chain the earlier bios to the later ones, so that submit_bio_wait waits on the bio that all the completions are dispatched to. Fixes: 6ad5b3255b9e ("xfs: use bios directly to read and write the log recovery buffers") Reported-by: Dave Chinner <[email protected]> Tested-by: Dave Chinner <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-07-09xfs: bump INUMBERS cursor correctly in xfs_inumbers_walkDarrick J. Wong1-3/+2
There's a subtle unit conversion error when we increment the INUMBERS cursor at the end of xfs_inumbers_walk. If there's an inode chunk at the very end of the AG /and/ the AG size is a perfect power of two, the startino of that last chunk (which is in units of AG inodes) will be 63 less than (1 << agino_log). If we add XFS_INODES_PER_CHUNK to the startino, we end up with a startino that's larger than (1 << agino_log) and when we convert that back to fs inode units we'll rip off that upper bit and wind up back at the start of the AG. Fix this by converting to units of fs inodes before adding XFS_INODES_PER_CHUNK so that we'll harmlessly end up pointing to the next AG. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-06xfs: don't update lastino for FSBULKSTAT_SINGLEDarrick J. Wong1-1/+0
The kernel test robot found a regression of xfs/054 in the conversion of bulkstat to use the new iwalk infrastructure -- if a caller set *lastip = 128 and invoked FSBULKSTAT_SINGLE, the bstat info would be for inode 128, but *lastip would be increased by the kernel to 129. FSBULKSTAT_SINGLE never incremented lastip before, so it's incorrect to make such an update to the internal lastino value now. Fixes: 2810bd6840e463 ("xfs: convert bulkstat to new iwalk infrastructure") Reported-by: kernel test robot <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Allison Collins <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-05xfs: disable map_sync for async flushPankaj Gupta1-3/+6
Dont support 'MAP_SYNC' with non-DAX files and DAX files with asynchronous dax_device. Virtio pmem provides asynchronous host page cache flush mechanism. We don't support 'MAP_SYNC' with virtio pmem and xfs. Signed-off-by: Pankaj Gupta <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2019-07-05xfs: online scrub needn't bother zeroing its temporary bufferDarrick J. Wong1-1/+5
The xattr scrubber functions use the temporary memory buffer either for storing bitmaps or for testing if attribute value extraction works. The bitmap code always zeroes what it needs and the value extraction sets the buffer contents, so it's not necessary to waste CPU time zeroing on allocation. Note that while we never read the contents that the attr value extraction function sets, we do need to call it to check the remote attribute header and CRCs to check for corruption. A flame graph analysis showed that we were spending 7% of a xfs_scrub run (the whole program, not just the attr scrubber itself) allocating and zeroing 64k segments needlessly. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-05xfs: only allocate memory for scrubbing attributes when we need itDarrick J. Wong2-10/+63
In examining a flame graph of time spent running xfs_scrub on various filesystems, I noticed that we spent nearly 7% of the total runtime on allocating a zeroed 65k buffer for every SCRUB_TYPE_XATTR invocation. We do this even if none of the attribute values were anywhere near 64k in size, even if there were no attribute blocks to check space on, and even if it just turns out there are no attributes at all. Therefore, rearrange the xattr buffer setup code to support reallocating with a bigger buffer and redistribute the callers of that function so that we only allocate memory just prior to needing it, and only allocate as much as we need. If we can't get memory with the ILOCK held we'll bail out with EDEADLOCK which will allocate the maximum memory. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-05xfs: refactor attr scrub memory allocation functionDarrick J. Wong2-9/+26
Move the code that allocates memory buffers for the extended attribute scrub code into a separate function so we can reduce memory allocations in the next patch. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-05xfs: refactor extended attribute buffer pointer functionsDarrick J. Wong2-9/+72
Replace the open-coded attribute buffer pointer calculations with helper functions to make it more obvious what we're doing with our freeform memory allocation w.r.t. either storing xattr values or computing btree block free space. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-05xfs: attribute scrub should use seen_enough to pass error valuesDarrick J. Wong2-3/+13
When we're iterating all the attributes using the built-in xattr iterator, we can use the seen_enough variable to pass error codes back to the main scrub function instead of flattening them into 0/1. This will be used in a more exciting fashion in upcoming patches. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-04xfs: allow single bulkstat of special inodesDarrick J. Wong2-1/+31
Create a new bulk ireq flag that enables userspace to ask us for a special inode number instead of interpreting @ino as a literal inode number. This enables us to query the root inode easily. The reason for adding the ability to query specifically the root directory inode is that certain programs (xfsdump and xfsrestore) want to confirm when they've been pointed to the root directory. The userspace code assumes the root directory is always the first result from calling bulkstat with lastino == 0, but this isn't true if the (initial btree roots + initial AGFL + inode alignment padding) is itself long enough to be allocated to new inodes if all of those blocks should happen to be free at the same time. Rather than make userspace guess at internal filesystem state, we provide a direct query. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Allison Collins <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-04xfs: specify AG in bulk reqDarrick J. Wong7-12/+69
Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG. If the passed-in startino value is zero then we start with the first inode in the AG that the user passes in; otherwise, we iterate only within the same AG as the passed-in inode. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Allison Collins <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: wire up the v5 inumbers ioctlDarrick J. Wong4-0/+62
Wire up the v5 INUMBERS ioctl. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: wire up new v5 bulkstat ioctlsDarrick J. Wong4-1/+123
Wire up the new v5 BULKSTAT ioctl. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: introduce v5 inode group structureDarrick J. Wong7-9/+42
Introduce a new "v5" inode group structure that fixes the alignment and padding problems of the existing structure. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: introduce new v5 bulkstat structureDarrick J. Wong9-30/+125
Introduce a new version of the in-core bulkstat structure that supports our new v5 format features. This structure also fills the gaps in the previous structure. We leave wiring up the ioctls for the next patch. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Allison Collins <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: rename bulkstat functionsDarrick J. Wong3-18/+19
Rename the bulkstat functions to 'fsbulkstat' so that they match the ioctl names. We will be introducing a new set of bulkstat/inumbers ioctls soon, and it will be important to keep the names straight. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Allison Collins <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: remove various bulk request typedef usageDarrick J. Wong4-20/+23
Remove xfs_bstat_t, xfs_fsop_bulkreq_t, xfs_inogrp_t, and similarly named compat typedefs. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Allison Collins <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03fs: xfs: xfs_log: Change return type from int to voidHariprasad Kelam4-17/+7
Change return types of below functions as they never fails xfs_log_mount_cancel xlog_recover_cancel xlog_recover_cancel_intents fix below issue reported by coccicheck fs/xfs/xfs_log_recover.c:4886:7-12: Unneeded variable: "error". Return "0" on line 4926 Signed-off-by: Hariprasad Kelam <[email protected]> Reviewed-by: Eric Sandeen <[email protected]> Reviewed-by: Carlos Maiolino <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-07-03xfs: poll waiting for quotacheckDarrick J. Wong5-2/+28
Create a pwork destroy function that uses polling instead of uninterruptible sleep to wait for work items to finish so that we can touch the softlockup watchdog. IOWs, gross hack. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-03xfs: multithreaded iwalk implementationDarrick J. Wong10-1/+325
Create a parallel iwalk implementation and switch quotacheck to use it. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: refactor INUMBERS to use iwalk functionsDarrick J. Wong5-150/+93
Now that we have generic functions to walk inode records, refactor the INUMBERS implementation to use it. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: refactor iwalk code to handle walking inobt recordsDarrick J. Wong2-3/+121
Refactor xfs_iwalk_ag_start and xfs_iwalk_ag so that the bits that are particular to bulkstat (trimming the start irec, starting inode readahead, and skipping empty groups) can be controlled via flags in the iwag structure. This enables us to add a new function to walk all inobt records which will be used for the new INUMBERS implementation in the next patch. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: refactor xfs_iwalk_grab_ichunkDarrick J. Wong1-40/+39
In preparation for reusing the iwalk code for the inogrp walking code (aka INUMBERS), move the initial inobt lookup and retrieval code out of xfs_iwalk_grab_ichunk so that we call the masking code only when we need to trim out the inodes that came before the cursor in the inobt record (aka BULKSTAT). Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: clean up long conditionals in xfs_iwalk_ichunk_raDarrick J. Wong1-6/+6
Refactor xfs_iwalk_ichunk_ra to avoid long conditionals. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: change xfs_iwalk_grab_ichunk to use startino, not lastinoDarrick J. Wong1-20/+17
Now that the inode chunk grabbing function is a static function in the iwalk code, change its behavior so that @agino is the inode where we want to /start/ the iteration. This reduces cognitive friction with the callers and simplifes the code. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: move bulkstat ichunk helpers to iwalk codeDarrick J. Wong3-104/+93
Now that we've reworked the bulkstat code to use iwalk, we can move the old bulkstat ichunk helpers to xfs_iwalk.c. No functional changes here. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: calculate inode walk prefetch more carefullyDarrick J. Wong1-3/+45
The existing inode walk prefetch is based on the old bulkstat code, which simply allocated 4 pages worth of memory and prefetched that many inobt records, regardless of however many inodes the caller requested. 65536 inodes is a lot to prefetch (~32M on x64, ~512M on arm64) so let's scale things down a little more intelligently based on the number of inodes requested, etc. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: convert bulkstat to new iwalk infrastructureDarrick J. Wong5-406/+264
Create a new ibulk structure incore to help us deal with bulk inode stat state tracking and then convert the bulkstat code to use the new iwalk iterator. This disentangles inode walking from bulk stat control for simpler code and enables us to isolate the formatter functions to the ioctl handling code. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: bulkstat should copy lastip whenever userspace supplies oneDarrick J. Wong2-14/+12
When userspace passes in a @lastip pointer we should copy the results back, even if the @ocount pointer is NULL. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: convert quotacheck to use the new iwalk functionsDarrick J. Wong1-43/+20
Convert quotacheck to use the new iwalk iterator to dig through the inodes. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: create simplified inode walk functionDarrick J. Wong8-6/+496
Create a new iterator function to simplify walking inodes in an XFS filesystem. This new iterator will replace the existing open-coded walking that goes on in various places. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-02xfs: create iterator error codesDarrick J. Wong6-8/+14
Currently, xfs doesn't have generic error codes defined for "stop iterating"; we just reuse the XFS_BTREE_QUERY_* return values. This looks a little weird if we're not actually iterating a btree index. Before we start adding more iterators, we should create general XFS_ITER_{CONTINUE,ABORT} return values and define the XFS_BTREE_QUERY_* ones from that. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Brian Foster <[email protected]>
2019-07-01vfs: teach vfs_ioc_fssetxattr_check to check extent size hintsDarrick J. Wong1-41/+29
Move the extent size hint checks that aren't xfs-specific to the vfs. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Jan Kara <[email protected]>
2019-07-01vfs: teach vfs_ioc_fssetxattr_check to check project id infoDarrick J. Wong1-15/+0
Standardize the project id checks for FSSETXATTR. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Jan Kara <[email protected]>
2019-07-01vfs: create a generic checking function for FS_IOC_FSSETXATTRDarrick J. Wong1-29/+40
Create a generic checking function for the incoming FS_IOC_FSSETXATTR fsxattr values so that we can standardize some of the implementation behaviors. Signed-off-by: Darrick J. Wong <[email protected]> Reviewed-by: Jan Kara <[email protected]>
2019-07-01block: fix .bi_size overflowMing Lei1-1/+1
'bio->bi_iter.bi_size' is 'unsigned int', which at most hold 4G - 1 bytes. Before 07173c3ec276 ("block: enable multipage bvecs"), one bio can include very limited pages, and usually at most 256, so the fs bio size won't be bigger than 1M bytes most of times. Since we support multi-page bvec, in theory one fs bio really can be added > 1M pages, especially in case of hugepage, or big writeback with too many dirty pages. Then there is chance in which .bi_size is overflowed. Fixes this issue by using bio_full() to check if the added segment may overflow .bi_size. Cc: Liu Yiding <[email protected]> Cc: kernel test robot <[email protected]> Cc: "Darrick J. Wong" <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Fixes: 07173c3ec276 ("block: enable multipage bvecs") Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Ming Lei <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2019-06-30xfs: remove XFS_TRANS_NOFSChristoph Hellwig6-23/+41
Instead of a magic flag for xfs_trans_alloc, just ensure all callers that can't relclaim through the file system use memalloc_nofs_save to set the per-task nofs flag. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-06-30xfs: simplify xfs_ioend_can_mergeChristoph Hellwig1-12/+2
Compare the block layer status directly instead of converting it to an errno first. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-06-30xfs: allow merging ioends over append boundariesChristoph Hellwig1-7/+21
There is no real problem merging ioends that go beyond i_size into an ioend that doesn't. We just need to move the append transaction to the base ioend. Also use the opportunity to use a real error code instead of the magic 1 to cancel the transactions, and write a comment explaining the scheme. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-06-30xfs: fix a comment typo in xfs_submit_ioendChristoph Hellwig1-1/+1
The fail argument is long gone, update the comment. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-06-30xfs: remove the unused xfs_count_page_state declarationChristoph Hellwig1-1/+0
Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>
2019-06-28xfs: fix iclog allocation sizeChristoph Hellwig1-1/+2
Properly allocate the space for the bio_vecs instead of just one byte per bio_vec. Fixes: 79b54d9bfcdcd0a ("xfs: use bios directly to write log buffers") Reported-by: [email protected] Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Darrick J. Wong <[email protected]> Signed-off-by: Darrick J. Wong <[email protected]>