[PATCH 1/3] f2fs: avoid using __GFP_NOFAIL

[Chao Yu]

From: Chao Yu <yuch...@huawei.com>

We will keep __add_ino_entry success all the time, for ENOMEM failure
case, we have already handled it with an opened loop code, so we don't
have to use redundant __GFP_NOFAIL in radix_tree_preload, remove it.

Signed-off-by: Chao Yu <yuch...@huawei.com>
---
 fs/f2fs/checkpoint.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 98777c1ae70c..43ee9d97fd8f 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -405,10 +405,11 @@ static void __add_ino_entry(struct f2fs_sb_info *sbi, 
nid_t ino,
 {
        struct inode_management *im = &sbi->im[type];
        struct ino_entry *e, *tmp;
+       bool preloaded;
 
        tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS);
 retry:
-       radix_tree_preload(GFP_NOFS | __GFP_NOFAIL);
+       preloaded = !radix_tree_preload(GFP_NOFS);
 
        spin_lock(&im->ino_lock);
        e = radix_tree_lookup(&im->ino_root, ino);
@@ -416,7 +417,8 @@ static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t 
ino,
                e = tmp;
                if (radix_tree_insert(&im->ino_root, ino, e)) {
                        spin_unlock(&im->ino_lock);
-                       radix_tree_preload_end();
+                       if (preloaded)
+                               radix_tree_preload_end();
                        goto retry;
                }
                memset(e, 0, sizeof(struct ino_entry));
@@ -431,7 +433,9 @@ static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t 
ino,
                f2fs_set_bit(devidx, (char *)&e->dirty_device);
 
        spin_unlock(&im->ino_lock);
-       radix_tree_preload_end();
+
+       if (preloaded)
+               radix_tree_preload_end();
 
        if (e != tmp)
                kmem_cache_free(ino_entry_slab, tmp);
-- 
2.14.1.145.gb3622a4ee