nilfs2: add palloc cache to ifile

This adds the palloc cache to ifile. The palloc cache is allocated on the extended region of nilfs_mdt_info struct. The struct nilfs_ifile_info defines the extended on memory structure of ifile. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

nilfs2: add palloc cache to ifile
This adds the palloc cache to ifile. The palloc cache is allocated on the extended region of nilfs_mdt_info struct. The struct nilfs_ifile_info defines the extended on memory structure of ifile. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi
1 parent c3ea56c800
Showing 1 changed file with 15 additions and 1 deletions Side-by-side Diff
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
  
@@ -159,13 +170,16 @@
 	struct inode *ifile;
 	int err;
  
-	ifile = nilfs_mdt_new(sbi->s_nilfs, sbi->s_super, NILFS_IFILE_INO, 0);
+	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;
 }
...	...	@@ -29,6 +29,17 @@
29	29	#include "alloc.h"
30	30	#include "ifile.h"
31	31
	32	+
	33	+struct nilfs_ifile_info {
	34	+ struct nilfs_mdt_info mi;
	35	+ struct nilfs_palloc_cache palloc_cache;
	36	+};
	37	+
	38	+static inline struct nilfs_ifile_info NILFS_IFILE_I(struct inode ifile)
	39	+{
	40	+ return (struct nilfs_ifile_info *)NILFS_MDT(ifile);
	41	+}
	42	+
32	43	/**
33	44	* nilfs_ifile_create_inode - create a new disk inode
34	45	* @ifile: ifile inode
35	46
...	...	@@ -159,13 +170,16 @@
159	170	struct inode *ifile;
160	171	int err;
161	172
162		- ifile = nilfs_mdt_new(sbi->s_nilfs, sbi->s_super, NILFS_IFILE_INO, 0);
	173	+ ifile = nilfs_mdt_new(sbi->s_nilfs, sbi->s_super, NILFS_IFILE_INO,
	174	+ sizeof(struct nilfs_ifile_info));
163	175	if (ifile) {
164	176	err = nilfs_palloc_init_blockgroup(ifile, inode_size);
165	177	if (unlikely(err)) {
166	178	nilfs_mdt_destroy(ifile);
167	179	return NULL;
168	180	}
	181	+ nilfs_palloc_setup_cache(ifile,
	182	+ &NILFS_IFILE_I(ifile)->palloc_cache);
169	183	}
170	184	return ifile;
171	185	}