fix the f2fs mount failed issue in low memory case

On the RACK test, the SDcard often mount failed becuase of the
page allocation failure. After checked with f2fs owner, we can
use kvzmalloc to alloc non-continuous memory in case continuous
memory allocation failed.

Change-Id: Ifd83e8b9a6bff241ed851007a3b7aec49b413eb3
Signed-off-by: huangzq2 <huangzq2@motorola.com>
Reviewed-on: https://gerrit.mot.com/1370212
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Wei Deng <dengwei1@motorola.com>
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index a4290c79fb246bffa85c6ded2421e3e97bc83a2c..6edd9eb211e396c27e1036ee94f72a4c3eebd813 100644 (file)
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2776,7 +2776,7 @@ static int init_free_nid_cache(struct f2fs_sb_info *sbi)
        struct f2fs_nm_info *nm_i = NM_I(sbi);
        int i;
 
-       nm_i->free_nid_bitmap = f2fs_kzalloc(sbi, nm_i->nat_blocks *
+       nm_i->free_nid_bitmap = f2fs_kvzalloc(sbi, nm_i->nat_blocks *
                                sizeof(unsigned char *), GFP_KERNEL);
        if (!nm_i->free_nid_bitmap)
                return -ENOMEM;
@@ -2883,7 +2883,7 @@ void destroy_node_manager(struct f2fs_sb_info *sbi)
 
                for (i = 0; i < nm_i->nat_blocks; i++)
                        kvfree(nm_i->free_nid_bitmap[i]);
-               kfree(nm_i->free_nid_bitmap);
+               kvfree(nm_i->free_nid_bitmap);
        }
        kvfree(nm_i->free_nid_count);