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| author | Johannes Berg | 2019-02-22 13:48:13 +0100 |
|---|---|---|
| committer | Johannes Berg | 2019-02-22 13:48:13 +0100 |
| commit | b7b14ec1ebef35d22f3f4087816468f22c987f75 (patch) | |
| tree | 3f99f4d7b770d7bba3ee84663b32f98dfbe7582d /fs/drop_caches.c | |
| parent | mac80211: update HE IEs to D3.3 (diff) | |
| parent | rocker: Add missing break for PRE_BRIDGE_FLAGS (diff) | |
| download | kernel-qcow2-linux-b7b14ec1ebef35d22f3f4087816468f22c987f75.tar.gz kernel-qcow2-linux-b7b14ec1ebef35d22f3f4087816468f22c987f75.tar.xz kernel-qcow2-linux-b7b14ec1ebef35d22f3f4087816468f22c987f75.zip | |
Merge remote-tracking branch 'net-next/master' into mac80211-next
Merge net-next to resolve a conflict and to get the mac80211
rhashtable fixes so further patches can be applied on top.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'fs/drop_caches.c')
| -rw-r--r-- | fs/drop_caches.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/drop_caches.c b/fs/drop_caches.c index 82377017130f..d31b6c72b476 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c @@ -21,8 +21,13 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused) spin_lock(&sb->s_inode_list_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { spin_lock(&inode->i_lock); + /* + * We must skip inodes in unusual state. We may also skip + * inodes without pages but we deliberately won't in case + * we need to reschedule to avoid softlockups. + */ if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || - (inode->i_mapping->nrpages == 0)) { + (inode->i_mapping->nrpages == 0 && !need_resched())) { spin_unlock(&inode->i_lock); continue; } @@ -30,6 +35,7 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused) spin_unlock(&inode->i_lock); spin_unlock(&sb->s_inode_list_lock); + cond_resched(); invalidate_mapping_pages(inode->i_mapping, 0, -1); iput(toput_inode); toput_inode = inode; |