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-rw-r--r--fs/nilfs2/ifile.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index de86401f209f..922d9dd42c8f 100644
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -29,6 +29,17 @@
#include "alloc.h"
#include "ifile.h"
+
+struct nilfs_ifile_info {
+ struct nilfs_mdt_info mi;
+ struct nilfs_palloc_cache palloc_cache;
+};
+
+static inline struct nilfs_ifile_info *NILFS_IFILE_I(struct inode *ifile)
+{
+ return (struct nilfs_ifile_info *)NILFS_MDT(ifile);
+}
+
/**
* nilfs_ifile_create_inode - create a new disk inode
* @ifile: ifile inode
@@ -148,3 +159,27 @@ int nilfs_ifile_get_inode_block(struct inode *ifile, ino_t ino,
}
return err;
}
+
+/**
+ * nilfs_ifile_new - create inode file
+ * @sbi: nilfs_sb_info struct
+ * @inode_size: size of an inode
+ */
+struct inode *nilfs_ifile_new(struct nilfs_sb_info *sbi, size_t inode_size)
+{
+ struct inode *ifile;
+ int err;
+
+ ifile = nilfs_mdt_new(sbi->s_nilfs, sbi->s_super, NILFS_IFILE_INO,
+ sizeof(struct nilfs_ifile_info));
+ if (ifile) {
+ err = nilfs_palloc_init_blockgroup(ifile, inode_size);
+ if (unlikely(err)) {
+ nilfs_mdt_destroy(ifile);
+ return NULL;
+ }
+ nilfs_palloc_setup_cache(ifile,
+ &NILFS_IFILE_I(ifile)->palloc_cache);
+ }
+ return ifile;
+}