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Merge branch 'for-4.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

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Pull btrfs fixes from David Sterba:
 "We've identified and fixed a silent corruption (introduced by code in
  the first pull), a fixup after the blk_status_t merge and two fixes to
  incremental send that Filipe has been hunting for some time"

* 'for-4.13-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Btrfs: fix unexpected return value of bio_readpage_error
  btrfs: btrfs_create_repair_bio never fails, skip error handling
  btrfs: cloned bios must not be iterated by bio_for_each_segment_all
  Btrfs: fix write corruption due to bio cloning on raid5/6
  Btrfs: incremental send, fix invalid memory access
  Btrfs: incremental send, fix invalid path for link commands
This commit is contained in:
Linus Torvalds
2017-07-14 22:55:52 -07:00
parent 0ffff118b1 c3cfb65630
commit bc243704fb
7 changed files with 88 additions and 57 deletions
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19
fs/btrfs/extent_io.c
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@@ -2258,7 +2258,7 @@ int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
return 0;
}
int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
bool btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
struct io_failure_record *failrec, int failed_mirror)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
@@ -2274,7 +2274,7 @@ int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
btrfs_debug(fs_info,
"Check Repairable: cannot repair, num_copies=%d, next_mirror %d, failed_mirror %d",
num_copies, failrec->this_mirror, failed_mirror);
return 0;
return false;
}
/*
@@ -2315,10 +2315,10 @@ int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
btrfs_debug(fs_info,
"Check Repairable: (fail) num_copies=%d, next_mirror %d, failed_mirror %d",
num_copies, failrec->this_mirror, failed_mirror);
return 0;
return false;
}
return 1;
return true;
}
@@ -2382,8 +2382,8 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
if (ret)
return ret;
ret = btrfs_check_repairable(inode, failed_bio, failrec, failed_mirror);
if (!ret) {
if (!btrfs_check_repairable(inode, failed_bio, failrec,
failed_mirror)) {
free_io_failure(failure_tree, tree, failrec);
return -EIO;
}
@@ -2396,10 +2396,6 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
start - page_offset(page),
(int)phy_offset, failed_bio->bi_end_io,
NULL);
if (!bio) {
free_io_failure(failure_tree, tree, failrec);
return -EIO;
}
bio_set_op_attrs(bio, REQ_OP_READ, read_mode);
btrfs_debug(btrfs_sb(inode->i_sb),
@@ -2456,6 +2452,7 @@ static void end_bio_extent_writepage(struct bio *bio)
u64 end;
int i;
ASSERT(!bio_flagged(bio, BIO_CLONED));
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
struct inode *inode = page->mapping->host;
@@ -2526,6 +2523,7 @@ static void end_bio_extent_readpage(struct bio *bio)
int ret;
int i;
ASSERT(!bio_flagged(bio, BIO_CLONED));
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
struct inode *inode = page->mapping->host;
@@ -3680,6 +3678,7 @@ static void end_bio_extent_buffer_writepage(struct bio *bio)
struct extent_buffer *eb;
int i, done;
ASSERT(!bio_flagged(bio, BIO_CLONED));
bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;