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2014-05-06NFSd: Mark nfs4_free_lockowner and nfs4_free_openowner as static functionsTrond Myklebust
They do not need to be used outside fs/nfsd/nfs4state.c Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06nfsd: remove <linux/nfsd/debug.h>Christoph Hellwig
There is almost nothing left it in, just merge it into the only file that includes it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06nfsd: move <linux/nfsd/stats.h> to fs/nfsdChristoph Hellwig
There are no legitimate users outside of fs/nfsd, so move it there. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06nfsd: move <linux/nfsd/export.h> to fs/nfsdChristoph Hellwig
There are no legitimate users outside of fs/nfsd, so move it there. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06nfsd: remove <linux/nfsd/nfsfh.h>Christoph Hellwig
The only real user of this header is fs/nfsd/nfsfh.h, so merge the two. Various lockѕ source files used it to indirectly get other sunrpc or nfs headers, so fix those up. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06NFSd: Remove 'inline' designation for free_client()Trond Myklebust
It is large, it is used in more than one place, and it is not performance critical. Let gcc figure out whether it should be inlined... Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06lockd: avoid warning when CONFIG_SYSCTL undefinedKees Cook
When building without CONFIG_SYSCTL, the compiler saw an unused label. This moves the label into the #ifdef it is used under. fs/lockd/svc.c: In function ‘init_nlm’: fs/lockd/svc.c:626:1: warning: label ‘err_sysctl’ defined but not used [-Wunused-label] Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-06bio_vec-backed iov_iterAl Viro
New variant of iov_iter - ITER_BVEC in iter->type, backed with bio_vec array instead of iovec one. Primitives taught to deal with such beasts, __swap_write() switched to using that kind of iov_iter. Note that bio_vec is just a <page, offset, length> triple - there's nothing block-specific about it. I've left the definition where it was, but took it from under ifdef CONFIG_BLOCK. Next target: ->splice_write()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ceph: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ceph_sync_direct_write: stop poking into iov_iter gutsAl Viro
all needed primitives are there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ceph_sync_read: stop poking into iov_iter gutsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06new helper: copy_page_from_iter()Al Viro
parallel to copy_page_to_iter(). pipe_write() switched to it (and became ->write_iter()). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06fuse: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06btrfs: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ocfs2: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06xfs: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06afs: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06gfs2: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06nfs: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ubifs: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06cifs: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06udf: switch to ->write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06convert ext4 to ->write_iter()Al Viro
unfortunately, Ted's changes to ext4_file_write() are *still* an incomplete fix - playing with rlimits can let you smuggle an unaligned request past the checks. So there almost certainly will be more merge PITA around that place... [fix from Peter Ujfalusi <peter.ujfalusi@ti.com> folded] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06Merge ext4 changes in ext4_file_write() into for-nextAl Viro
From ext4.git#dev, needed for switch of ext4 to ->write_iter() ;-/
2014-05-06blkdev_aio_write() - turn into blkdev_write_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06write_iter variants of {__,}generic_file_aio_write()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ceph: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06nfs: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06fs/block_dev.c: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06pipe: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06cifs: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06fuse_file_aio_read(): convert to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ocfs2: switch to ->read_iter()Al Viro
tracepoints are evil, exhibit #6969... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06ecryptfs: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06xfs: switch to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06switch simple generic_file_aio_read() users to ->read_iter()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06new methods: ->read_iter() and ->write_iter()Al Viro
Beginning to introduce those. Just the callers for now, and it's clumsier than it'll eventually become; once we finish converting aio_read and aio_write instances, the things will get nicer. For now, these guys are in parallel to ->aio_read() and ->aio_write(); they take iocb and iov_iter, with everything in iov_iter already validated. File offset is passed in iocb->ki_pos, iov/nr_segs - in iov_iter. Main concerns in that series are stack footprint and ability to split the damn thing cleanly. [fix from Peter Ujfalusi <peter.ujfalusi@ti.com> folded] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06replace checking for ->read/->aio_read presence with check in ->f_modeAl Viro
Since we are about to introduce new methods (read_iter/write_iter), the tests in a bunch of places would have to grow inconveniently. Check once (at open() time) and store results in ->f_mode as FMODE_CAN_READ and FMODE_CAN_WRITE resp. It might end up being a temporary measure - once everything switches from ->aio_{read,write} to ->{read,write}_iter it might make sense to return to open-coded checks. We'll see... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06xfs: trim the argument lists of xfs_file_{dio,buffered}_aio_write()Al Viro
pos is redundant (it's iocb->ki_pos), and iov/nr_segs/count are taken care of by lifting iov_iter into the caller. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06blkdev_aio_read(): switch to generic_file_read_iter(), get rid of iov_shorten()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06iov_iter_truncate()Al Viro
Now It Can Be Done(tm) - we don't need to do iov_shorten() in generic_file_direct_write() anymore, now that all ->direct_IO() instances are converted to proper iov_iter methods and honour iter->count and iter->iov_offset properly. Get rid of count/ocount arguments of generic_file_direct_write(), while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06btrfs: switch check_direct_IO() to iov_iterAl Viro
... and don't open-code iov_iter_alignment() there Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06new helper: iov_iter_get_pages_alloc()Al Viro
same as iov_iter_get_pages(), except that pages array is allocated (kmalloc if possible, vmalloc if that fails) and left for caller to free. Lustre and NFS ->direct_IO() switched to it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06new helper: iov_iter_npages()Al Viro
counts the pages covered by iov_iter, up to given limit. do_block_direct_io() and fuse_iter_npages() switched to it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06f2fs: switch to iov_iter_alignment()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06fuse: switch to iov_iter_get_pages()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06fuse: pull iov_iter initializations upAl Viro
... to fuse_direct_{read,write}(). ->direct_IO() path uses the iov_iter passed by the caller instead. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06new helper: iov_iter_get_pages()Al Viro
iov_iter_get_pages(iter, pages, maxsize, &start) grabs references pinning the pages of up to maxsize of (contiguous) data from iter. Returns the amount of memory grabbed or -error. In case of success, the requested area begins at offset start in pages[0] and runs through pages[1], etc. Less than requested amount might be returned - either because the contiguous area in the beginning of iterator is smaller than requested, or because the kernel failed to pin that many pages. direct-io.c switched to using iov_iter_get_pages() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06dio: take updating ->result into do_direct_IO()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-05-06start adding the tag to iov_iterAl Viro
For now, just use the same thing we pass to ->direct_IO() - it's all iovec-based at the moment. Pass it explicitly to iov_iter_init() and account for kvec vs. iovec in there, by the same kludge NFS ->direct_IO() uses. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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