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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-08-12 16:08:03 +0400
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-08-26 15:15:01 +0400
commitde93653fe31fc9439971296842dcd0280f8ab5f4 (patch)
treed4db3c55eead49b0a4f3c9e56eca372f9142d6cd /include/linux/f2fs_fs.h
parent444c580f7e9ad29927a5d5269d576bd7cdccebb8 (diff)
downloadlinux-de93653fe31fc9439971296842dcd0280f8ab5f4.tar.xz
f2fs: reserve the xattr space dynamically
This patch enables the number of direct pointers inside on-disk inode block to be changed dynamically according to the size of inline xattr space. The number of direct pointers, ADDRS_PER_INODE, can be changed only if the file has inline xattr flag. The number of direct pointers that will be used by inline xattrs is defined as F2FS_INLINE_XATTR_ADDRS. Current patch assigns F2FS_INLINE_XATTR_ADDRS to 0 temporarily. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'include/linux/f2fs_fs.h')
-rw-r--r--include/linux/f2fs_fs.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 10ab11f8f99d..93e7020fb7a8 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -140,9 +140,17 @@ struct f2fs_extent {
} __packed;
#define F2FS_NAME_LEN 255
-#define ADDRS_PER_INODE 923 /* Address Pointers in an Inode */
-#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */
-#define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */
+#define F2FS_INLINE_XATTR_ADDRS 0 /* 0 bytes for inline xattrs */
+#define DEF_ADDRS_PER_INODE 923 /* Address Pointers in an Inode */
+#define ADDRS_PER_INODE(fi) addrs_per_inode(fi)
+#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */
+#define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */
+
+#define NODE_DIR1_BLOCK (DEF_ADDRS_PER_INODE + 1)
+#define NODE_DIR2_BLOCK (DEF_ADDRS_PER_INODE + 2)
+#define NODE_IND1_BLOCK (DEF_ADDRS_PER_INODE + 3)
+#define NODE_IND2_BLOCK (DEF_ADDRS_PER_INODE + 4)
+#define NODE_DIND_BLOCK (DEF_ADDRS_PER_INODE + 5)
#define F2FS_INLINE_XATTR 0x01 /* file inline xattr flag */
@@ -172,7 +180,7 @@ struct f2fs_inode {
struct f2fs_extent i_ext; /* caching a largest extent */
- __le32 i_addr[ADDRS_PER_INODE]; /* Pointers to data blocks */
+ __le32 i_addr[DEF_ADDRS_PER_INODE]; /* Pointers to data blocks */
__le32 i_nid[5]; /* direct(2), indirect(2),
double_indirect(1) node id */