lkml.org 
[lkml]   [2017]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[GIT PULL 54/58] lightnvm: pblk: remove spinlock when freeing line metadata
Date
From: Hans Holmberg <hans.holmberg@cnexlabs.com>

Lockdep complains about being in atomic context while freeing line
metadata - and rightly so as we take a spinlock and end up calling
vfree that might sleep(in pblk_mfree).

There is no need for holding the line manager free_lock while
freeing line metadata as the pipeline as stopped, so remove the lock.

Fixes: 588726d3ec68 ("lightnvm: pblk: fail gracefully on irrec. error")
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
---
drivers/lightnvm/pblk-init.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 52c85f4..f62112b 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -393,13 +393,11 @@ static void pblk_line_meta_free(struct pblk *pblk)
kfree(l_mg->bb_aux);
kfree(l_mg->vsc_list);

- spin_lock(&l_mg->free_lock);
for (i = 0; i < PBLK_DATA_LINES; i++) {
kfree(l_mg->sline_meta[i]);
pblk_mfree(l_mg->eline_meta[i]->buf, l_mg->emeta_alloc_type);
kfree(l_mg->eline_meta[i]);
}
- spin_unlock(&l_mg->free_lock);

kfree(pblk->lines);
}
--
2.9.3
\
 
 \ /
  Last update: 2017-10-13 14:50    [W:1.344 / U:0.756 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site