summaryrefslogtreecommitdiff
path: root/fs/btrfs/inode.c
diff options
context:
space:
mode:
authorJakub Kicinski <kuba@kernel.org>2024-02-16 01:01:43 +0300
committerJakub Kicinski <kuba@kernel.org>2024-02-16 03:20:04 +0300
commit73be9a3aabdd976123e7f05dd20dbcf131347e84 (patch)
tree7b9575df90cae451b7640d53d5e3b3858900a275 /fs/btrfs/inode.c
parentdfe7f12788f5428d8bc16e86eedcfa889a3e3b29 (diff)
parent4f5e5092fdbf5cec6bedc19fbe69cce4f5f08372 (diff)
downloadlinux-73be9a3aabdd976123e7f05dd20dbcf131347e84.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: net/core/dev.c 9f30831390ed ("net: add rcu safety to rtnl_prop_list_size()") 723de3ebef03 ("net: free altname using an RCU callback") net/unix/garbage.c 11498715f266 ("af_unix: Remove io_uring code for GC.") 25236c91b5ab ("af_unix: Fix task hung while purging oob_skb in GC.") drivers/net/ethernet/renesas/ravb_main.c ed4adc07207d ("net: ravb: Count packets instead of descriptors in GbEth RX path" ) c2da9408579d ("ravb: Add Rx checksum offload support for GbEth") net/mptcp/protocol.c bdd70eb68913 ("mptcp: drop the push_pending field") 28e5c1380506 ("mptcp: annotate lockless accesses around read-mostly fields") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 1eb93d3962aa..f88e0ca8331d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3184,8 +3184,23 @@ out:
unwritten_start += logical_len;
clear_extent_uptodate(io_tree, unwritten_start, end, NULL);
- /* Drop extent maps for the part of the extent we didn't write. */
- btrfs_drop_extent_map_range(inode, unwritten_start, end, false);
+ /*
+ * Drop extent maps for the part of the extent we didn't write.
+ *
+ * We have an exception here for the free_space_inode, this is
+ * because when we do btrfs_get_extent() on the free space inode
+ * we will search the commit root. If this is a new block group
+ * we won't find anything, and we will trip over the assert in
+ * writepage where we do ASSERT(em->block_start !=
+ * EXTENT_MAP_HOLE).
+ *
+ * Theoretically we could also skip this for any NOCOW extent as
+ * we don't mess with the extent map tree in the NOCOW case, but
+ * for now simply skip this if we are the free space inode.
+ */
+ if (!btrfs_is_free_space_inode(inode))
+ btrfs_drop_extent_map_range(inode, unwritten_start,
+ end, false);
/*
* If the ordered extent had an IOERR or something else went
@@ -10273,6 +10288,13 @@ ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from,
if (encoded->encryption != BTRFS_ENCODED_IO_ENCRYPTION_NONE)
return -EINVAL;
+ /*
+ * Compressed extents should always have checksums, so error out if we
+ * have a NOCOW file or inode was created while mounted with NODATASUM.
+ */
+ if (inode->flags & BTRFS_INODE_NODATASUM)
+ return -EINVAL;
+
orig_count = iov_iter_count(from);
/* The extent size must be sane. */