unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
1
Fork 0
Code Pull requests 5 Wiki Activity

io_uring/rsrc: clear 'slot' entry upfront

Browse source 
No functional changes in this patch, but clearing the slot pointer
earlier will be required by a later change.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2024-09-11 13:52:17 -06:00
parent 84eacf177f
commit 021b153f7d
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
io_uring/rsrc.c
View file

@ -114,6 +114,7 @@ static void io_buffer_unmap(struct io_ring_ctx *ctx, struct io_mapped_ubuf **slo
struct io_mapped_ubuf *imu = *slot;
unsigned int i;
*slot = NULL;
if (imu != &dummy_ubuf) {
for (i = 0; i < imu->nr_bvecs; i++)
unpin_user_page(imu->bvec[i].bv_page);
@ -121,7 +122,6 @@ static void io_buffer_unmap(struct io_ring_ctx *ctx, struct io_mapped_ubuf **slo
io_unaccount_mem(ctx, imu->acct_pages);
kvfree(imu);
}
*slot = NULL;
}
static void io_rsrc_put_work(struct io_rsrc_node *node)