This is a note to let you know that I've just added the patch titled
ceph: always set initial i_blkbits to CEPH_FSCRYPT_BLOCK_SHIFT
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ceph-always-set-initial-i_blkbits-to-ceph_fscrypt_bl.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 291e7e1a9e7eee39099d58aebe2c479fb3739d3e
Author: Xiubo Li <xiubli@xxxxxxxxxx>
Date: Thu Jan 18 14:24:41 2024 +0800
ceph: always set initial i_blkbits to CEPH_FSCRYPT_BLOCK_SHIFT
[ Upstream commit bbb20ea993f46743f7429092ddc52f1a5c5428ef ]
The fscrypt code will use i_blkbits to setup ci_data_unit_bits when
allocating the new inode, but ceph will initiate i_blkbits ater when
filling the inode, which is too late. Since ci_data_unit_bits will only
be used by the fscrypt framework so initiating i_blkbits with
CEPH_FSCRYPT_BLOCK_SHIFT is safe.
Link: https://tracker.ceph.com/issues/64035
Fixes: 5b1188847180 ("fscrypt: support crypto data unit size less than filesystem block size")
Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx>
Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx>
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 0679240f06db..7d41c3e03476 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -78,6 +78,8 @@ struct inode *ceph_new_inode(struct inode *dir, struct dentry *dentry,
if (!inode)
return ERR_PTR(-ENOMEM);
+ inode->i_blkbits = CEPH_FSCRYPT_BLOCK_SHIFT;
+
if (!S_ISLNK(*mode)) {
err = ceph_pre_init_acls(dir, mode, as_ctx);
if (err < 0)
