* [PATCH] NFS: replace usage of found with dedicated list iterator variable
@ 2022-03-24 7:15 Jakob Koschel
0 siblings, 0 replies; only message in thread
From: Jakob Koschel @ 2022-03-24 7:15 UTC (permalink / raw)
To: Trond Myklebust
Cc: Anna Schumaker, linux-nfs, linux-kernel, Mike Rapoport,
Brian Johannesmeyer, Cristiano Giuffrida, Bos, H.J.,
Jakob Koschel
To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.
To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable instead of a
found boolean [1].
This removes the need to use a found variable and simply checking if
the variable was set, can determine if the break/goto was hit.
Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
---
fs/nfs/nfs42proc.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 32129446beca..f2aa0f8bbc1b 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -175,9 +175,8 @@ static int handle_async_copy(struct nfs42_copy_res *res,
nfs4_stateid *src_stateid,
bool *restart)
{
- struct nfs4_copy_state *copy, *tmp_copy;
+ struct nfs4_copy_state *copy, *tmp_copy = NULL, *iter;
int status = NFS4_OK;
- bool found_pending = false;
struct nfs_open_context *dst_ctx = nfs_file_open_context(dst);
struct nfs_open_context *src_ctx = nfs_file_open_context(src);
@@ -186,17 +185,17 @@ static int handle_async_copy(struct nfs42_copy_res *res,
return -ENOMEM;
spin_lock(&dst_server->nfs_client->cl_lock);
- list_for_each_entry(tmp_copy,
+ list_for_each_entry(iter,
&dst_server->nfs_client->pending_cb_stateids,
copies) {
- if (memcmp(&res->write_res.stateid, &tmp_copy->stateid,
+ if (memcmp(&res->write_res.stateid, &iter->stateid,
NFS4_STATEID_SIZE))
continue;
- found_pending = true;
- list_del(&tmp_copy->copies);
+ tmp_copy = iter;
+ list_del(&iter->copies);
break;
}
- if (found_pending) {
+ if (tmp_copy) {
spin_unlock(&dst_server->nfs_client->cl_lock);
kfree(copy);
copy = tmp_copy;
base-commit: f443e374ae131c168a065ea1748feac6b2e76613
--
2.25.1
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2022-03-24 7:15 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-03-24 7:15 [PATCH] NFS: replace usage of found with dedicated list iterator variable Jakob Koschel
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).