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Commit 32cc01c4 authored by Jinshan Xiong's avatar Jinshan Xiong Committed by Greg Kroah-Hartman
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staging: lustre: llite: error setting max_cache_mb at mount time 



The root cause is that when max_cache_mb conf parameter is applied,
the client isn't connected to the OST yet so that sbi->ll_dt_exp is
NULL. However, it's not necessary to shrink the cache memory in this
case so success should be returned.

Signed-off-by: default avatarJinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3676
Reviewed-on: http://review.whamcloud.com/7194


Reviewed-by: default avatarAndreas Dilger <andreas.dilger@intel.com>
Reviewed-by: default avatarBobi Jam <bobijam@gmail.com>
Signed-off-by: default avatarJames Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3c4b9d09

drivers/staging/lustre/lustre/llite/lproc_llite.c

+2 −2
Original line number Diff line number Diff line
@@ -460,8 +460,8 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file, 
			break;



		if (!sbi->ll_dt_exp) { /* being initialized */

			rc = -ENODEV;

			break;

			rc = 0;

			goto out;

		}



		/* difficult - have to ask OSCs to drop LRU slots. */