Merge branch 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason: "Dave Sterba collected a few more fixes for the last rc. These aren't marked for stable, but I'm putting them in with a batch were testing/sending by hand for this release" * 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix potential use-after-free for cloned bio Btrfs: fix segmentation fault when doing dio read Btrfs: fix invalid dereference in btrfs_retry_endio btrfs: drop the nossd flag when remounting with -o ssd
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commit
4b31ac485d
@ -7910,7 +7910,6 @@ struct btrfs_retry_complete {
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static void btrfs_retry_endio_nocsum(struct bio *bio)
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{
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struct btrfs_retry_complete *done = bio->bi_private;
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struct inode *inode;
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struct bio_vec *bvec;
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int i;
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@ -7918,12 +7917,12 @@ static void btrfs_retry_endio_nocsum(struct bio *bio)
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goto end;
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ASSERT(bio->bi_vcnt == 1);
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inode = bio->bi_io_vec->bv_page->mapping->host;
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ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
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ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode));
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done->uptodate = 1;
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bio_for_each_segment_all(bvec, bio, i)
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clean_io_failure(BTRFS_I(done->inode), done->start, bvec->bv_page, 0);
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clean_io_failure(BTRFS_I(done->inode), done->start,
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bvec->bv_page, 0);
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end:
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complete(&done->done);
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bio_put(bio);
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@ -7973,8 +7972,10 @@ next_block_or_try_again:
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start += sectorsize;
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if (nr_sectors--) {
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nr_sectors--;
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if (nr_sectors) {
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pgoff += sectorsize;
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ASSERT(pgoff < PAGE_SIZE);
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goto next_block_or_try_again;
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}
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}
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@ -7986,9 +7987,7 @@ static void btrfs_retry_endio(struct bio *bio)
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{
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struct btrfs_retry_complete *done = bio->bi_private;
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struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
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struct inode *inode;
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struct bio_vec *bvec;
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u64 start;
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int uptodate;
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int ret;
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int i;
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@ -7998,11 +7997,8 @@ static void btrfs_retry_endio(struct bio *bio)
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uptodate = 1;
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start = done->start;
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ASSERT(bio->bi_vcnt == 1);
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inode = bio->bi_io_vec->bv_page->mapping->host;
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ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
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ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode));
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bio_for_each_segment_all(bvec, bio, i) {
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ret = __readpage_endio_check(done->inode, io_bio, i,
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@ -8080,8 +8076,10 @@ next:
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ASSERT(nr_sectors);
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if (--nr_sectors) {
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nr_sectors--;
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if (nr_sectors) {
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pgoff += sectorsize;
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ASSERT(pgoff < PAGE_SIZE);
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goto next_block;
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}
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}
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@ -549,16 +549,19 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
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case Opt_ssd:
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btrfs_set_and_info(info, SSD,
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"use ssd allocation scheme");
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btrfs_clear_opt(info->mount_opt, NOSSD);
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break;
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case Opt_ssd_spread:
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btrfs_set_and_info(info, SSD_SPREAD,
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"use spread ssd allocation scheme");
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btrfs_set_opt(info->mount_opt, SSD);
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btrfs_clear_opt(info->mount_opt, NOSSD);
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break;
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case Opt_nossd:
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btrfs_set_and_info(info, NOSSD,
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"not using ssd allocation scheme");
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btrfs_clear_opt(info->mount_opt, SSD);
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btrfs_clear_opt(info->mount_opt, SSD_SPREAD);
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break;
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case Opt_barrier:
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btrfs_clear_and_info(info, NOBARRIER,
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@ -6213,7 +6213,7 @@ int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
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for (dev_nr = 0; dev_nr < total_devs; dev_nr++) {
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dev = bbio->stripes[dev_nr].dev;
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if (!dev || !dev->bdev ||
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(bio_op(bio) == REQ_OP_WRITE && !dev->writeable)) {
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(bio_op(first_bio) == REQ_OP_WRITE && !dev->writeable)) {
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bbio_error(bbio, first_bio, logical);
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continue;
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}
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