diff options
| author | Christoph Hellwig <hch@lst.de> | 2026-01-09 07:07:49 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-01-11 12:55:41 -0700 |
| commit | bb8e2019ad613dd023a59bf91d1768018d17e09b (patch) | |
| tree | 2b82449366bbb591e549122b5bf9f4e02132a7df /fs/buffer.c | |
| parent | 66e5a11d2ed6d58006d5cd8276de28751daaa230 (diff) | |
blk-crypto: handle the fallback above the block layer
Add a blk_crypto_submit_bio helper that either submits the bio when
it is not encrypted or inline encryption is provided, but otherwise
handles the encryption before going down into the low-level driver.
This reduces the risk from bio reordering and keeps memory allocation
as high up in the stack as possible.
Note that if the submitter knows that inline enctryption is known to
be supported by the underyling driver, it can still use plain
submit_bio.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 838c0c571022..da18053f66e8 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include <linux/capability.h> #include <linux/blkdev.h> +#include <linux/blk-crypto.h> #include <linux/file.h> #include <linux/quotaops.h> #include <linux/highmem.h> @@ -2821,7 +2822,7 @@ static void submit_bh_wbc(blk_opf_t opf, struct buffer_head *bh, wbc_account_cgroup_owner(wbc, bh->b_folio, bh->b_size); } - submit_bio(bio); + blk_crypto_submit_bio(bio); } void submit_bh(blk_opf_t opf, struct buffer_head *bh) |