From c7298013ce3042321db4652f72ed1f1dde453129 Mon Sep 17 00:00:00 2001 From: Gregoire Pichon Date: Thu, 10 Nov 2016 12:30:48 -0500 Subject: [PATCH] staging: lustre: osc: fix max_dirty_mb tunable setting limit The OSC tunable max_dirty_mb must be set to a value strictly lower than 2048, as it is assumed by OSS in ofd_grant_alloc() routine. Signed-off-by: Gregoire Pichon Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7218 Reviewed-on: http://review.whamcloud.com/16652 Reviewed-by: Andreas Dilger Reviewed-by: Bobi Jam Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/osc/lproc_osc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c index a837362d903d..4f56a49f2a32 100644 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c @@ -162,7 +162,7 @@ static ssize_t max_dirty_mb_store(struct kobject *kobj, pages_number *= 1 << (20 - PAGE_SHIFT); /* MB -> pages */ if (pages_number <= 0 || - pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_SHIFT) || + pages_number >= OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_SHIFT) || pages_number > totalram_pages / 4) /* 1/4 of RAM */ return -ERANGE; -- 2.11.0