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| author | Yan, Zheng <zyan@redhat.com> | 2017-12-15 16:57:40 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2018-01-29 18:36:09 +0100 |
| commit | 314c4737a45dd4447eac6d313e3715b25785f58b (patch) | |
| tree | fcee6d1f5bf9969b9282c1d9e36762aff6a82c43 /fs | |
| parent | 5d988308283ecf062fa88f20ae05c52cce0bcdca (diff) | |
| download | linux-314c4737a45dd4447eac6d313e3715b25785f58b.tar.bz2 | |
ceph: fix un-balanced fsc->writeback_count update
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/addr.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 78a1208b878e..b4336b42ce3b 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -578,7 +578,6 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) struct ceph_fs_client *fsc; struct ceph_snap_context *snapc, *oldest; loff_t page_off = page_offset(page); - long writeback_stat; int err, len = PAGE_SIZE; struct ceph_writeback_ctl ceph_wbc; @@ -619,8 +618,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) dout("writepage %p page %p index %lu on %llu~%u snapc %p seq %lld\n", inode, page, page->index, page_off, len, snapc, snapc->seq); - writeback_stat = atomic_long_inc_return(&fsc->writeback_count); - if (writeback_stat > + if (atomic_long_inc_return(&fsc->writeback_count) > CONGESTION_ON_THRESH(fsc->mount_options->congestion_kb)) set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC); @@ -655,6 +653,11 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) end_page_writeback(page); ceph_put_wrbuffer_cap_refs(ci, 1, snapc); ceph_put_snap_context(snapc); /* page's reference */ + + if (atomic_long_dec_return(&fsc->writeback_count) < + CONGESTION_OFF_THRESH(fsc->mount_options->congestion_kb)) + clear_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC); + return err; } |