A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge "Revert "aio: only use blk plugs for > 2 depth submissions""

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qctecmdr 2021-06-08 06:24:58 -07:00 • committed by Gerrit - the friendly Code Review server
commit 24803b2fdf
1 changed files with 4 additions and 14 deletions
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18
fs/aio.c
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@ -71,12 +71,6 @@ struct aio_ring {
struct io_event io_events[0];
}; /* 128 bytes + ring size */
/*
* Plugging is meant to work with larger batches of IOs. If we don't
* have more than the below, then don't bother setting up a plug.
*/
#define AIO_PLUG_THRESHOLD 2
#define AIO_RING_PAGES 8
struct kioctx_table {
@ -1932,8 +1926,7 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr,
if (nr > ctx->nr_events)
nr = ctx->nr_events;
if (nr > AIO_PLUG_THRESHOLD)
blk_start_plug(&plug);
blk_start_plug(&plug);
for (i = 0; i < nr; i++) {
struct iocb __user *user_iocb;
@ -1946,8 +1939,7 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr,
if (ret)
break;
}
if (nr > AIO_PLUG_THRESHOLD)
blk_finish_plug(&plug);
blk_finish_plug(&plug);
percpu_ref_put(&ctx->users);
return i ? i : ret;
@ -1974,8 +1966,7 @@ COMPAT_SYSCALL_DEFINE3(io_submit, compat_aio_context_t, ctx_id,
if (nr > ctx->nr_events)
nr = ctx->nr_events;
if (nr > AIO_PLUG_THRESHOLD)
blk_start_plug(&plug);
blk_start_plug(&plug);
for (i = 0; i < nr; i++) {
compat_uptr_t user_iocb;
@ -1988,8 +1979,7 @@ COMPAT_SYSCALL_DEFINE3(io_submit, compat_aio_context_t, ctx_id,
if (ret)
break;
}
if (nr > AIO_PLUG_THRESHOLD)
blk_finish_plug(&plug);
blk_finish_plug(&plug);
percpu_ref_put(&ctx->users);
return i ? i : ret;