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2019-07-03xfs: remove various bulk request typedef usageDarrick J. Wong
Remove xfs_bstat_t, xfs_fsop_bulkreq_t, xfs_inogrp_t, and similarly named compat typedefs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03fs: xfs: xfs_log: Change return type from int to voidHariprasad Kelam
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 <hariprasad.kelam@gmail.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-07-03xfs: poll waiting for quotacheckDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03xfs: multithreaded iwalk implementationDarrick J. Wong
Create a parallel iwalk implementation and switch quotacheck to use it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: refactor INUMBERS to use iwalk functionsDarrick J. Wong
Now that we have generic functions to walk inode records, refactor the INUMBERS implementation to use it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: refactor iwalk code to handle walking inobt recordsDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: refactor xfs_iwalk_grab_ichunkDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: clean up long conditionals in xfs_iwalk_ichunk_raDarrick J. Wong
Refactor xfs_iwalk_ichunk_ra to avoid long conditionals. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: change xfs_iwalk_grab_ichunk to use startino, not lastinoDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: move bulkstat ichunk helpers to iwalk codeDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: calculate inode walk prefetch more carefullyDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: convert bulkstat to new iwalk infrastructureDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: bulkstat should copy lastip whenever userspace supplies oneDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: convert quotacheck to use the new iwalk functionsDarrick J. Wong
Convert quotacheck to use the new iwalk iterator to dig through the inodes. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: create simplified inode walk functionDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02xfs: create iterator error codesDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-01vfs: teach vfs_ioc_fssetxattr_check to check extent size hintsDarrick J. Wong
Move the extent size hint checks that aren't xfs-specific to the vfs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Jan Kara <jack@suse.cz>
2019-07-01vfs: teach vfs_ioc_fssetxattr_check to check project id infoDarrick J. Wong
Standardize the project id checks for FSSETXATTR. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Jan Kara <jack@suse.cz>
2019-07-01vfs: create a generic checking function for FS_IOC_FSSETXATTRDarrick J. Wong
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 <darrick.wong@oracle.com> Reviewed-by: Jan Kara <jack@suse.cz>
2019-07-01block: fix .bi_size overflowMing Lei
'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 <liuyd.fnst@cn.fujitsu.com> Cc: kernel test robot <rong.a.chen@intel.com> Cc: "Darrick J. Wong" <darrick.wong@oracle.com> Cc: linux-xfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Cc: stable@vger.kernel.org Fixes: 07173c3ec276 ("block: enable multipage bvecs") Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-06-30xfs: remove XFS_TRANS_NOFSChristoph Hellwig
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 <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-30xfs: simplify xfs_ioend_can_mergeChristoph Hellwig
Compare the block layer status directly instead of converting it to an errno first. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-30xfs: allow merging ioends over append boundariesChristoph Hellwig
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 <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-30xfs: fix a comment typo in xfs_submit_ioendChristoph Hellwig
The fail argument is long gone, update the comment. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-30xfs: remove the unused xfs_count_page_state declarationChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: fix iclog allocation sizeChristoph Hellwig
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: syzbot+b75afdbe271a0d7ac4f6@syzkaller.appspotmail.com Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: remove unused header filesEric Sandeen
There are many, many xfs header files which are included but unneeded (or included twice) in the xfs code, so remove them. nb: xfs_linux.h includes about 9 headers for everyone, so those explicit includes get removed by this. I'm not sure what the preference is, but if we wanted explicit includes everywhere, a followup patch could remove those xfs_*.h includes from xfs_linux.h and move them into the files that need them. Or it could be left as-is. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: implement cgroup aware writebackChristoph Hellwig
Link every newly allocated writeback bio to cgroup pointed to by the writeback control structure, and charge every byte written back to it. Tested-by: Stefan Priebe - Profihost AG <s.priebe@profihost.ag> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: simplify xfs_chain_bioChristoph Hellwig
Move setting up operation and write hint to xfs_alloc_ioend, and then just copy over all needed information from the previous bio in xfs_chain_bio and stop passing various parameters to it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: account for log space when formatting new AGsDarrick J. Wong
When we're writing out a fresh new AG, make sure that we don't list an internal log as free and that we create the rmap for the region. growfs never does this, but we will need it when we hook up mkfs. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2019-06-28xfs: refactor free space btree record initializationDarrick J. Wong
Refactor the code that populates the free space btrees of a new AG so that we can avoid code duplication once things start getting complicated. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2019-06-28xfs: always update params on small allocationBrian Foster
xfs_alloc_ag_vextent_small() doesn't update the output parameters in the event of an AGFL allocation. Instead, it updates the xfs_alloc_arg structure directly to complete the allocation. Update both args and the output params to provide consistent behavior for future callers. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: skip small alloc cntbt logic on NULL cursorBrian Foster
The small allocation helper is implemented in a way that is fairly tightly integrated to the existing allocation algorithms. It expects a cntbt cursor beyond the end of the tree, attempts to locate the last record in the tree and only attempts an AGFL allocation if the cntbt is empty. The upcoming generic algorithm doesn't rely on the cntbt processing of this function. It will only call this function when the cntbt doesn't have a big enough extent or is empty and thus AGFL allocation is the only remaining option. Tweak xfs_alloc_ag_vextent_small() to handle a NULL cntbt cursor and skip the cntbt logic. This facilitates use by the existing allocation code and new code that only requires an AGFL allocation attempt. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: move small allocation helperBrian Foster
Move the small allocation helper further up in the file to avoid the need for a function declaration. The remaining declarations will be removed by followup patches. No functional changes. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: clean up small allocation helperBrian Foster
xfs_alloc_ag_vextent_small() is kind of a mess. Clean it up in preparation for future changes. No functional changes. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_trans_bmap.c into xfs_bmap_item.cChristoph Hellwig
Keep all bmap item related code together. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_trans_rmap.c into xfs_rmap_item.cChristoph Hellwig
Keep all rmap item related code together in one file. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_trans_refcount.c into xfs_refcount_item.cChristoph Hellwig
Keep all the refcount item related code together in one file. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_trans_extfree.c into xfs_extfree_item.cChristoph Hellwig
Keep all the extree item related code together in one file. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_bud_init into xfs_trans_get_budChristoph Hellwig
There is no good reason to keep these two functions separate. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_rud_init into xfs_trans_get_rudChristoph Hellwig
There is no good reason to keep these two functions separate. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_cud_init into xfs_trans_get_cudChristoph Hellwig
There is no good reason to keep these two functions separate. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: merge xfs_efd_init into xfs_trans_get_efdChristoph Hellwig
There is no good reason to keep these two functions separate. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: remove a pointless comment duplicated above all xfs_item_ops instancesChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: use a list_head for iclog callbacksChristoph Hellwig
Replace the hand grown linked list handling and cil context attachment with the standard list_head structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: remove the xfs_log_item_t typedefChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: don't cast inode_log_items to get the log_itemChristoph Hellwig
The cast is not type safe, and we can just dereference the first member instead to start with. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: add a flag to release log items on commitChristoph Hellwig
We have various items that are released from ->iop_comitting. Add a flag to just call ->iop_release from the commit path to avoid tons of boilerplate code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: split iop_unlockChristoph Hellwig
The iop_unlock method is called when comitting or cancelling a transaction. In the latter case, the transaction may or may not be aborted. While there is no known problem with the current code in practice, this implementation is limited in that any log item implementation that might want to differentiate between a commit and a cancellation must rely on the aborted state. The aborted bit is only set when the cancelled transaction is dirty, however. This means that there is no way to distinguish between a commit and a clean transaction cancellation. For example, intent log items currently rely on this distinction. The log item is either transferred to the CIL on commit or released on transaction cancel. There is currently no possibility for a clean intent log item in a transaction, but if that state is ever introduced a cancel of such a transaction will immediately result in memory leaks of the associated log item(s). This is an interface deficiency and landmine. To clean this up, replace the iop_unlock method with an iop_release method that is specific to transaction cancel. The existing iop_committing method occurs at the same time as iop_unlock in the commit path and there is no need for two separate callbacks here. Overload the iop_committing method with the current commit time iop_unlock implementations to eliminate the need for the latter and further simplify the interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28xfs: don't use xfs_trans_free_items in the commit pathChristoph Hellwig
While commiting items looks very similar to freeing them on error it is a different operation, and they will diverge a bit soon. Split out the commit case from xfs_trans_free_items, inline it into xfs_log_commit_cil and give it a separate trace point. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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