[PATCH 27/29] xfs: add a comment for xlog_kvmalloc()

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From: Hao Xu <howeyxu@xxxxxxxxxxx>

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

Signed-off-by: Hao Xu <howeyxu@xxxxxxxxxxx>
---
 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





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