From f978f5a0616d18f303d9c8f51c293a03bc09dbaf Mon Sep 17 00:00:00 2001 From: Gu Zheng Date: Fri, 21 Feb 2014 18:08:29 +0800 Subject: [PATCH] f2fs: introduce help macro on_build_free_nids() Introduce help macro on_build_free_nids() which just uses build_lock to judge whether the building free nid is going, so that we can remove the on_build_free_nids field from f2fs_sb_info. Signed-off-by: Gu Zheng [Jaegeuk Kim: remove an unnecessary white line removal] Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 1 - fs/f2fs/node.c | 6 +++--- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 91f4c5e7b6a2..c56e67b468da 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -417,7 +417,6 @@ struct f2fs_sb_info { struct mutex node_write; /* locking node writes */ struct mutex writepages; /* mutex for writepages() */ bool por_doing; /* recovery is doing or not */ - bool on_build_free_nids; /* build_free_nids is doing */ wait_queue_head_t cp_wait; /* for orphan inode management */ diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index a070b1457d70..431bcb42cdd0 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -21,6 +21,8 @@ #include "segment.h" #include +#define on_build_free_nids(nmi) mutex_is_locked(&nm_i->build_lock) + static struct kmem_cache *nat_entry_slab; static struct kmem_cache *free_nid_slab; @@ -1422,7 +1424,7 @@ retry: spin_lock(&nm_i->free_nid_list_lock); /* We should not use stale free nids created by build_free_nids */ - if (nm_i->fcnt && !sbi->on_build_free_nids) { + if (nm_i->fcnt && !on_build_free_nids(nm_i)) { f2fs_bug_on(list_empty(&nm_i->free_nid_list)); list_for_each(this, &nm_i->free_nid_list) { i = list_entry(this, struct free_nid, list); @@ -1441,9 +1443,7 @@ retry: /* Let's scan nat pages and its caches to get free nids */ mutex_lock(&nm_i->build_lock); - sbi->on_build_free_nids = true; build_free_nids(sbi); - sbi->on_build_free_nids = false; mutex_unlock(&nm_i->build_lock); goto retry; } -- 2.20.1