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authorChao Yu <yuchao0@huawei.com>2018-01-25 14:40:08 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2018-03-13 02:05:33 +0300
commit199bc3fef29cacf672e7e5cd49d296c1fdc1a891 (patch)
tree0a44af6c0911b048b57908ea1c4b40cf1e2d8fd3 /include/linux/f2fs_fs.h
parentbf617f7a92edc6bb2909db2bfa4576f50b280ee5 (diff)
downloadlinux-199bc3fef29cacf672e7e5cd49d296c1fdc1a891.tar.xz
f2fs: support large nat bitmap
Previously, we will store all nat version bitmap in checkpoint pack block, so our total node entry number has a limitation which caused total node number can not exceed (3900 * 8) block * 455 node/block = 14196000. So that once user wants to create more nodes in large size image, it becomes a bottleneck, that's unreasonable. This patch detects the new layout of nat/sit version bitmap in image in order to enable supporting large nat bitmap. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/linux/f2fs_fs.h')
-rw-r--r--include/linux/f2fs_fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 393b880afc9a..96c9bdbace50 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -116,6 +116,7 @@ struct f2fs_super_block {
/*
* For checkpoint
*/
+#define CP_LARGE_NAT_BITMAP_FLAG 0x00000400
#define CP_NOCRC_RECOVERY_FLAG 0x00000200
#define CP_TRIMMED_FLAG 0x00000100
#define CP_NAT_BITS_FLAG 0x00000080