Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro: "This the bunch that sat in -next + lock_parent() fix. This is the minimal set; there's more pending stuff. In particular, I really hope to get acct.c fixes merged this cycle - we need that to deal sanely with delayed-mntput stuff. In the next pile, hopefully - that series is fairly short and localized (kernel/acct.c, fs/super.c and fs/namespace.c). In this pile: more iov_iter work. Most of prereqs for ->splice_write with sane locking order are there and Kent's dio rewrite would also fit nicely on top of this pile" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (70 commits) lock_parent: don't step on stale ->d_parent of all-but-freed one kill generic_file_splice_write() ceph: switch to iter_file_splice_write() shmem: switch to iter_file_splice_write() nfs: switch to iter_splice_write_file() fs/splice.c: remove unneeded exports ocfs2: switch to iter_file_splice_write() ->splice_write() via ->write_iter() bio_vec-backed iov_iter optimize copy_page_{to,from}_iter() bury generic_file_aio_{read,write} lustre: get rid of messing with iovecs ceph: switch to ->write_iter() ceph_sync_direct_write: stop poking into iov_iter guts ceph_sync_read: stop poking into iov_iter guts new helper: copy_page_from_iter() fuse: switch to ->write_iter() btrfs: switch to ->write_iter() ocfs2: switch to ->write_iter() xfs: switch to ->write_iter() ...
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@@ -247,12 +247,13 @@ static int fat_write_end(struct file *file, struct address_space *mapping,
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}
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static ssize_t fat_direct_IO(int rw, struct kiocb *iocb,
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const struct iovec *iov,
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loff_t offset, unsigned long nr_segs)
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struct iov_iter *iter,
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loff_t offset)
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{
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struct file *file = iocb->ki_filp;
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struct address_space *mapping = file->f_mapping;
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struct inode *inode = mapping->host;
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size_t count = iov_iter_count(iter);
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ssize_t ret;
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if (rw == WRITE) {
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@@ -265,7 +266,7 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb,
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*
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* Return 0, and fallback to normal buffered write.
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*/
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loff_t size = offset + iov_length(iov, nr_segs);
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loff_t size = offset + count;
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if (MSDOS_I(inode)->mmu_private < size)
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return 0;
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}
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@@ -274,10 +275,9 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb,
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* FAT need to use the DIO_LOCKING for avoiding the race
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* condition of fat_get_block() and ->truncate().
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*/
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ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs,
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fat_get_block);
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ret = blockdev_direct_IO(rw, iocb, inode, iter, offset, fat_get_block);
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if (ret < 0 && (rw & WRITE))
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fat_write_failed(mapping, offset + iov_length(iov, nr_segs));
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fat_write_failed(mapping, offset + count);
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return ret;
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}
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