linux-kernel - [PATCH 27/29] xfs: add a comment for xlog

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Message-Id: <20230825135431.1317785-28-hao.xu@linux.dev>
Date:   Fri, 25 Aug 2023 21:54:29 +0800
From:   Hao Xu <hao.xu@...ux.dev>
To:     io-uring@...r.kernel.org, Jens Axboe <axboe@...nel.dk>
Cc:     Dominique Martinet <asmadeus@...ewreck.org>,
        Pavel Begunkov <asml.silence@...il.com>,
        Christian Brauner <brauner@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Stefan Roesch <shr@...com>, Clay Harris <bugs@...ycon.org>,
        Dave Chinner <david@...morbit.com>,
        "Darrick J . Wong" <djwong@...nel.org>,
        linux-fsdevel@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-cachefs@...hat.com,
        ecryptfs@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-unionfs@...r.kernel.org, bpf@...r.kernel.org,
        netdev@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-btrfs@...r.kernel.org, codalist@...a.cs.cmu.edu,
        linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com,
        linux-mm@...ck.org, linux-nilfs@...r.kernel.org,
        devel@...ts.orangefs.org, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-mtd@...ts.infradead.org,
        Wanpeng Li <wanpengli@...cent.com>
Subject: [PATCH 27/29] xfs: add a comment for xlog_kvmalloc()

From: Hao Xu <howeyxu@...cent.com>

vmalloc() always succeed in 64 bit system?
Not a real patch.

Signed-off-by: Hao Xu <howeyxu@...cent.com>
---
 fs/xfs/xfs_log_cil.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index f17c1799b3c4..b31830ee36dd 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -335,6 +335,9 @@ xlog_cil_alloc_shadow_bufs(
 			 * storage.
 			 */
 			kmem_free(lip->li_lv_shadow);
+			/*
+			 * May this be indefinite loop in nowait case?
+			 */
 			lv = xlog_kvmalloc(buf_size);
 
 			memset(lv, 0, xlog_cil_iovec_space(niovecs));
-- 
2.25.1