Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
Merge commit. Changes below are compared with the first parent: 7f388396.
Changes
33 files changed · +1339 −1257
Only the first 600 diff lines are shown. Download the complete patch.
fs/nilfs2/Makefile
View filediff --git a/fs/nilfs2/Makefile b/fs/nilfs2/Makefile
index df3e62c..85c9873 100644
--- a/fs/nilfs2/Makefile
+++ b/fs/nilfs2/Makefile
@@ -2,4 +2,4 @@ obj-$(CONFIG_NILFS2_FS) += nilfs2.o
nilfs2-y := inode.o file.o dir.o super.o namei.o page.o mdt.o \
btnode.o bmap.o btree.o direct.o dat.o recovery.o \
the_nilfs.o segbuf.o segment.o cpfile.o sufile.o \
- ifile.o alloc.o gcinode.o ioctl.o gcdat.o
+ ifile.o alloc.o gcinode.o ioctl.o
fs/nilfs2/bmap.c
View filediff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 3dbdc1d..8b782b0 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -533,18 +533,20 @@ void nilfs_bmap_init_gc(struct nilfs_bmap *bmap)
nilfs_btree_init_gc(bmap);
}
-void nilfs_bmap_init_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
+void nilfs_bmap_save(const struct nilfs_bmap *bmap,
+ struct nilfs_bmap_store *store)
{
- memcpy(gcbmap, bmap, sizeof(*bmap));
- init_rwsem(&gcbmap->b_sem);
- lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
- gcbmap->b_inode = &NILFS_BMAP_I(gcbmap)->vfs_inode;
+ memcpy(store->data, bmap->b_u.u_data, sizeof(store->data));
+ store->last_allocated_key = bmap->b_last_allocated_key;
+ store->last_allocated_ptr = bmap->b_last_allocated_ptr;
+ store->state = bmap->b_state;
}
-void nilfs_bmap_commit_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
+void nilfs_bmap_restore(struct nilfs_bmap *bmap,
+ const struct nilfs_bmap_store *store)
{
- memcpy(bmap, gcbmap, sizeof(*bmap));
- init_rwsem(&bmap->b_sem);
- lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
- bmap->b_inode = &NILFS_BMAP_I(bmap)->vfs_inode;
+ memcpy(bmap->b_u.u_data, store->data, sizeof(store->data));
+ bmap->b_last_allocated_key = store->last_allocated_key;
+ bmap->b_last_allocated_ptr = store->last_allocated_ptr;
+ bmap->b_state = store->state;
}
fs/nilfs2/bmap.h
View filediff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index a20569b..bde1c0a 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -135,6 +135,12 @@ struct nilfs_bmap {
/* state */
#define NILFS_BMAP_DIRTY 0x00000001
+struct nilfs_bmap_store {
+ __le64 data[NILFS_BMAP_SIZE / sizeof(__le64)];
+ __u64 last_allocated_key;
+ __u64 last_allocated_ptr;
+ int state;
+};
int nilfs_bmap_test_and_clear_dirty(struct nilfs_bmap *);
int nilfs_bmap_read(struct nilfs_bmap *, struct nilfs_inode *);
@@ -153,9 +159,9 @@ int nilfs_bmap_lookup_at_level(struct nilfs_bmap *, __u64, int, __u64 *);
int nilfs_bmap_mark(struct nilfs_bmap *, __u64, int);
void nilfs_bmap_init_gc(struct nilfs_bmap *);
-void nilfs_bmap_init_gcdat(struct nilfs_bmap *, struct nilfs_bmap *);
-void nilfs_bmap_commit_gcdat(struct nilfs_bmap *, struct nilfs_bmap *);
+void nilfs_bmap_save(const struct nilfs_bmap *, struct nilfs_bmap_store *);
+void nilfs_bmap_restore(struct nilfs_bmap *, const struct nilfs_bmap_store *);
static inline int nilfs_bmap_lookup(struct nilfs_bmap *bmap, __u64 key,
__u64 *ptr)
fs/nilfs2/btnode.c
View filediff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index f78ab10..5115814 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -37,15 +37,7 @@
void nilfs_btnode_cache_init_once(struct address_space *btnc)
{
- memset(btnc, 0, sizeof(*btnc));
- INIT_RADIX_TREE(&btnc->page_tree, GFP_ATOMIC);
- spin_lock_init(&btnc->tree_lock);
- INIT_LIST_HEAD(&btnc->private_list);
- spin_lock_init(&btnc->private_lock);
-
- spin_lock_init(&btnc->i_mmap_lock);
- INIT_RAW_PRIO_TREE_ROOT(&btnc->i_mmap);
- INIT_LIST_HEAD(&btnc->i_mmap_nonlinear);
+ nilfs_mapping_init_once(btnc);
}
static const struct address_space_operations def_btnode_aops = {
@@ -55,12 +47,7 @@ static const struct address_space_operations def_btnode_aops = {
void nilfs_btnode_cache_init(struct address_space *btnc,
struct backing_dev_info *bdi)
{
- btnc->host = NULL; /* can safely set to host inode ? */
- btnc->flags = 0;
- mapping_set_gfp_mask(btnc, GFP_NOFS);
- btnc->assoc_mapping = NULL;
- btnc->backing_dev_info = bdi;
- btnc->a_ops = &def_btnode_aops;
+ nilfs_mapping_init(btnc, bdi, &def_btnode_aops);
}
void nilfs_btnode_cache_clear(struct address_space *btnc)
fs/nilfs2/cpfile.c
View filediff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index 1873781..5ff15a8 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -863,26 +863,19 @@ int nilfs_cpfile_is_snapshot(struct inode *cpfile, __u64 cno)
*/
int nilfs_cpfile_change_cpmode(struct inode *cpfile, __u64 cno, int mode)
{
- struct the_nilfs *nilfs;
int ret;
- nilfs = NILFS_MDT(cpfile)->mi_nilfs;
-
switch (mode) {
case NILFS_CHECKPOINT:
- /*
- * Check for protecting existing snapshot mounts:
- * ns_mount_mutex is used to make this operation atomic and
- * exclusive with a new mount job. Though it doesn't cover
- * umount, it's enough for the purpose.
- */
- if (nilfs_checkpoint_is_mounted(nilfs, cno, 1)) {
- /* Current implementation does not have to protect
- plain read-only mounts since they are exclusive
- with a read/write mount and are protected from the
- cleaner. */
+ if (nilfs_checkpoint_is_mounted(cpfile->i_sb, cno))
+ /*
+ * Current implementation does not have to protect
+ * plain read-only mounts since they are exclusive
+ * with a read/write mount and are protected from the
+ * cleaner.
+ */
ret = -EBUSY;
- } else
+ else
ret = nilfs_cpfile_clear_snapshot(cpfile, cno);
return ret;
case NILFS_SNAPSHOT:
@@ -933,27 +926,40 @@ int nilfs_cpfile_get_stat(struct inode *cpfile, struct nilfs_cpstat *cpstat)
}
/**
- * nilfs_cpfile_read - read cpfile inode
- * @cpfile: cpfile inode
- * @raw_inode: on-disk cpfile inode
- */
-int nilfs_cpfile_read(struct inode *cpfile, struct nilfs_inode *raw_inode)
-{
- return nilfs_read_inode_common(cpfile, raw_inode);
-}
-
-/**
- * nilfs_cpfile_new - create cpfile
- * @nilfs: nilfs object
+ * nilfs_cpfile_read - read or get cpfile inode
+ * @sb: super block instance
* @cpsize: size of a checkpoint entry
+ * @raw_inode: on-disk cpfile inode
+ * @inodep: buffer to store the inode
*/
-struct inode *nilfs_cpfile_new(struct the_nilfs *nilfs, size_t cpsize)
+int nilfs_cpfile_read(struct super_block *sb, size_t cpsize,
+ struct nilfs_inode *raw_inode, struct inode **inodep)
{
struct inode *cpfile;
+ int err;
+
+ cpfile = nilfs_iget_locked(sb, NULL, NILFS_CPFILE_INO);
+ if (unlikely(!cpfile))
+ return -ENOMEM;
+ if (!(cpfile->i_state & I_NEW))
+ goto out;
+
+ err = nilfs_mdt_init(cpfile, NILFS_MDT_GFP, 0);
+ if (err)
+ goto failed;
- cpfile = nilfs_mdt_new(nilfs, NULL, NILFS_CPFILE_INO, 0);
- if (cpfile)
- nilfs_mdt_set_entry_size(cpfile, cpsize,
- sizeof(struct nilfs_cpfile_header));
- return cpfile;
+ nilfs_mdt_set_entry_size(cpfile, cpsize,
+ sizeof(struct nilfs_cpfile_header));
+
+ err = nilfs_read_inode_common(cpfile, raw_inode);
+ if (err)
+ goto failed;
+
+ unlock_new_inode(cpfile);
+ out:
+ *inodep = cpfile;
+ return 0;
+ failed:
+ iget_failed(cpfile);
+ return err;
}
fs/nilfs2/cpfile.h
View filediff --git a/fs/nilfs2/cpfile.h b/fs/nilfs2/cpfile.h
index bc0809e..a242b9a 100644
--- a/fs/nilfs2/cpfile.h
+++ b/fs/nilfs2/cpfile.h
@@ -40,7 +40,7 @@ int nilfs_cpfile_get_stat(struct inode *, struct nilfs_cpstat *);
ssize_t nilfs_cpfile_get_cpinfo(struct inode *, __u64 *, int, void *, unsigned,
size_t);
-int nilfs_cpfile_read(struct inode *cpfile, struct nilfs_inode *raw_inode);
-struct inode *nilfs_cpfile_new(struct the_nilfs *nilfs, size_t cpsize);
+int nilfs_cpfile_read(struct super_block *sb, size_t cpsize,
+ struct nilfs_inode *raw_inode, struct inode **inodep);
#endif /* _NILFS_CPFILE_H */
fs/nilfs2/dat.c
View filediff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index 0131467..49c844d 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -36,6 +36,7 @@
struct nilfs_dat_info {
struct nilfs_mdt_info mi;
struct nilfs_palloc_cache palloc_cache;
+ struct nilfs_shadow_map shadow;
};
static inline struct nilfs_dat_info *NILFS_DAT_I(struct inode *dat)
@@ -102,7 +103,8 @@ void nilfs_dat_abort_alloc(struct inode *dat, struct nilfs_palloc_req *req)
nilfs_palloc_abort_alloc_entry(dat, req);
}
-void nilfs_dat_commit_free(struct inode *dat, struct nilfs_palloc_req *req)
+static void nilfs_dat_commit_free(struct inode *dat,
+ struct nilfs_palloc_req *req)
{
struct nilfs_dat_entry *entry;
void *kaddr;
@@ -327,6 +329,23 @@ int nilfs_dat_move(struct inode *dat, __u64 vblocknr, sector_t blocknr)
ret = nilfs_palloc_get_entry_block(dat, vblocknr, 0, &entry_bh);
if (ret < 0)
return ret;
+
+ /*
+ * The given disk block number (blocknr) is not yet written to
+ * the device at this point.
+ *
+ * To prevent nilfs_dat_translate() from returning the
+ * uncommited block number, this makes a copy of the entry
+ * buffer and redirects nilfs_dat_translate() to the copy.
+ */
+ if (!buffer_nilfs_redirected(entry_bh)) {
+ ret = nilfs_mdt_freeze_buffer(dat, entry_bh);
+ if (ret) {
+ brelse(entry_bh);
+ return ret;
+ }
+ }
+
kaddr = kmap_atomic(entry_bh->b_page, KM_USER0);
entry = nilfs_palloc_block_get_entry(dat, vblocknr, entry_bh, kaddr);
if (unlikely(entry->de_blocknr == cpu_to_le64(0))) {
@@ -371,7 +390,7 @@ int nilfs_dat_move(struct inode *dat, __u64 vblocknr, sector_t blocknr)
*/
int nilfs_dat_translate(struct inode *dat, __u64 vblocknr, sector_t *blocknrp)
{
- struct buffer_head *entry_bh;
+ struct buffer_head *entry_bh, *bh;
struct nilfs_dat_entry *entry;
sector_t blocknr;
void *kaddr;
@@ -381,6 +400,15 @@ int nilfs_dat_translate(struct inode *dat, __u64 vblocknr, sector_t *blocknrp)
if (ret < 0)
return ret;
+ if (!nilfs_doing_gc() && buffer_nilfs_redirected(entry_bh)) {
+ bh = nilfs_mdt_get_frozen_buffer(dat, entry_bh);
+ if (bh) {
+ WARN_ON(!buffer_uptodate(bh));
+ brelse(entry_bh);
+ entry_bh = bh;
+ }
+ }
+
kaddr = kmap_atomic(entry_bh->b_page, KM_USER0);
entry = nilfs_palloc_block_get_entry(dat, vblocknr, entry_bh, kaddr);
blocknr = le64_to_cpu(entry->de_blocknr);
@@ -436,38 +464,48 @@ ssize_t nilfs_dat_get_vinfo(struct inode *dat, void *buf, unsigned visz,
}
/**
- * nilfs_dat_read - read dat inode
- * @dat: dat inode
- * @raw_inode: on-disk dat inode
- */
-int nilfs_dat_read(struct inode *dat, struct nilfs_inode *raw_inode)
-{
- return nilfs_read_inode_common(dat, raw_inode);
-}
-
-/**
- * nilfs_dat_new - create dat file
- * @nilfs: nilfs object
+ * nilfs_dat_read - read or get dat inode
+ * @sb: super block instance
* @entry_size: size of a dat entry
+ * @raw_inode: on-disk dat inode
+ * @inodep: buffer to store the inode
*/
-struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size)
+int nilfs_dat_read(struct super_block *sb, size_t entry_size,
+ struct nilfs_inode *raw_inode, struct inode **inodep)
{
static struct lock_class_key dat_lock_key;
struct inode *dat;
struct nilfs_dat_info *di;
int err;
- dat = nilfs_mdt_new(nilfs, NULL, NILFS_DAT_INO, sizeof(*di));
- if (dat) {
- err = nilfs_palloc_init_blockgroup(dat, entry_size);
- if (unlikely(err)) {
- nilfs_mdt_destroy(dat);
- return NULL;
- }
+ dat = nilfs_iget_locked(sb, NULL, NILFS_DAT_INO);
+ if (unlikely(!dat))
+ return -ENOMEM;
+ if (!(dat->i_state & I_NEW))
+ goto out;
- di = NILFS_DAT_I(dat);
- lockdep_set_class(&di->mi.mi_sem, &dat_lock_key);
- nilfs_palloc_setup_cache(dat, &di->palloc_cache);
- }
- return dat;
+ err = nilfs_mdt_init(dat, NILFS_MDT_GFP, sizeof(*di));
+ if (err)
+ goto failed;
+
+ err = nilfs_palloc_init_blockgroup(dat, entry_size);
+ if (err)
+ goto failed;
+
+ di = NILFS_DAT_I(dat);
+ lockdep_set_class(&di->mi.mi_sem, &dat_lock_key);
+ nilfs_palloc_setup_cache(dat, &di->palloc_cache);
+ nilfs_mdt_setup_shadow_map(dat, &di->shadow);
+
+ err = nilfs_read_inode_common(dat, raw_inode);
+ if (err)
+ goto failed;
+
+ unlock_new_inode(dat);
+ out:
+ *inodep = dat;
+ return 0;
+ failed:
+ iget_failed(dat);
+ return err;
}
fs/nilfs2/dat.h
View filediff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h
index d31c3aa..cbd8e97 100644
--- a/fs/nilfs2/dat.h
+++ b/fs/nilfs2/dat.h
@@ -53,7 +53,7 @@ int nilfs_dat_freev(struct inode *, __u64 *, size_t);
int nilfs_dat_move(struct inode *, __u64, sector_t);
ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
-int nilfs_dat_read(struct inode *dat, struct nilfs_inode *raw_inode);
-struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size);
+int nilfs_dat_read(struct super_block *sb, size_t entry_size,
+ struct nilfs_inode *raw_inode, struct inode **inodep);
#endif /* _NILFS_DAT_H */
fs/nilfs2/export.h
View filediff --git a/fs/nilfs2/export.h b/fs/nilfs2/export.h
new file mode 100644
index 0000000..a71cc41
--- /dev/null
+++ b/fs/nilfs2/export.h
@@ -0,0 +1,17 @@
+#ifndef NILFS_EXPORT_H
+#define NILFS_EXPORT_H
+
+#include <linux/exportfs.h>
+
+extern const struct export_operations nilfs_export_ops;
+
+struct nilfs_fid {
+ u64 cno;
+ u64 ino;
+ u32 gen;
+
+ u32 parent_gen;
+ u64 parent_ino;
+} __attribute__ ((packed));
+
+#endif
fs/nilfs2/gcdat.c
View before deletiondiff --git a/fs/nilfs2/gcdat.c b/fs/nilfs2/gcdat.c
deleted file mode 100644
index 84a45d1..0000000
--- a/fs/nilfs2/gcdat.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * gcdat.c - NILFS shadow DAT inode for GC
- *
- * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Written by Seiji Kihara <[email protected]>, Amagai Yoshiji <[email protected]>,
- * and Ryusuke Konishi <[email protected]>.
- *
- */
-
-#include <linux/buffer_head.h>
-#include "nilfs.h"
-#include "page.h"
-#include "mdt.h"
-
-int nilfs_init_gcdat_inode(struct the_nilfs *nilfs)
-{
- struct inode *dat = nilfs->ns_dat, *gcdat = nilfs->ns_gc_dat;
- struct nilfs_inode_info *dii = NILFS_I(dat), *gii = NILFS_I(gcdat);
- int err;
-
- gcdat->i_state = 0;
- gcdat->i_blocks = dat->i_blocks;
- gii->i_flags = dii->i_flags;
- gii->i_state = dii->i_state | (1 << NILFS_I_GCDAT);
- gii->i_cno = 0;
- nilfs_bmap_init_gcdat(gii->i_bmap, dii->i_bmap);
- err = nilfs_copy_dirty_pages(gcdat->i_mapping, dat->i_mapping);
- if (unlikely(err))
- return err;
-
- return nilfs_copy_dirty_pages(&gii->i_btnode_cache,
- &dii->i_btnode_cache);
-}
-
-void nilfs_commit_gcdat_inode(struct the_nilfs *nilfs)
-{
- struct inode *dat = nilfs->ns_dat, *gcdat = nilfs->ns_gc_dat;
- struct nilfs_inode_info *dii = NILFS_I(dat), *gii = NILFS_I(gcdat);
- struct address_space *mapping = dat->i_mapping;
- struct address_space *gmapping = gcdat->i_mapping;
-
- down_write(&NILFS_MDT(dat)->mi_sem);
- dat->i_blocks = gcdat->i_blocks;
- dii->i_flags = gii->i_flags;
- dii->i_state = gii->i_state & ~(1 << NILFS_I_GCDAT);
-
- nilfs_bmap_commit_gcdat(gii->i_bmap, dii->i_bmap);
-
- nilfs_palloc_clear_cache(dat);
- nilfs_palloc_clear_cache(gcdat);
- nilfs_clear_dirty_pages(mapping);
- nilfs_copy_back_pages(mapping, gmapping);
- /* note: mdt dirty flags should be cleared by segctor. */
-
- nilfs_clear_dirty_pages(&dii->i_btnode_cache);
- nilfs_copy_back_pages(&dii->i_btnode_cache, &gii->i_btnode_cache);
-
- up_write(&NILFS_MDT(dat)->mi_sem);
-}
-
-void nilfs_clear_gcdat_inode(struct the_nilfs *nilfs)
-{
- struct inode *gcdat = nilfs->ns_gc_dat;
- struct nilfs_inode_info *gii = NILFS_I(gcdat);
-
- gcdat->i_state = I_FREEING | I_CLEAR;
- gii->i_flags = 0;
-
- nilfs_palloc_clear_cache(gcdat);
- truncate_inode_pages(gcdat->i_mapping, 0);
- truncate_inode_pages(&gii->i_btnode_cache, 0);
-}
fs/nilfs2/gcinode.c
View filediff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index bed3a78..33ad25d 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -28,13 +28,6 @@
* gcinodes), and this file provides lookup function of the dummy
* inodes and their buffer read function.
*
- * Since NILFS2 keeps up multiple checkpoints/snapshots across GC, it
- * has to treat blocks that belong to a same file but have different
- * checkpoint numbers. To avoid interference among generations, dummy
- * inodes are managed separately from actual inodes, and their lookup
- * function (nilfs_gc_iget) is designed to be specified with a
- * checkpoint number argument as well as an inode number.
- *
* Buffers and pages held by the dummy inodes will be released each
* time after they are copied to a new log. Dirty blocks made on the
* current generation and the blocks to be moved by GC never overlap
@@ -175,125 +168,46 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh)
}
nilfs_btnode_mark_dirty(bh);
} else {
- nilfs_mdt_mark_buffer_dirty(bh);
+ nilfs_mark_buffer_dirty(bh);
}
return 0;
}
-/*
- * nilfs_init_gccache() - allocate and initialize gc_inode hash table
- * @nilfs - the_nilfs
- *
- * Return Value: On success, 0.
- * On error, a negative error code is returned.
- */
-int nilfs_init_gccache(struct the_nilfs *nilfs)
+int nilfs_init_gcinode(struct inode *inode)
{
- int loop;
-
- BUG_ON(nilfs->ns_gc_inodes_h);
-
- INIT_LIST_HEAD(&nilfs->ns_gc_inodes);
-
- nilfs->ns_gc_inodes_h =
- kmalloc(sizeof(struct hlist_head) * NILFS_GCINODE_HASH_SIZE,
- GFP_NOFS);
- if (nilfs->ns_gc_inodes_h == NULL)
- return -ENOMEM;
-
- for (loop = 0; loop < NILFS_GCINODE_HASH_SIZE; loop++)
- INIT_HLIST_HEAD(&nilfs->ns_gc_inodes_h[loop]);
- return 0;
-}
-
-/*
- * nilfs_destroy_gccache() - free gc_inode hash table
- * @nilfs - the nilfs
- */
-void nilfs_destroy_gccache(struct the_nilfs *nilfs)
-{
- if (nilfs->ns_gc_inodes_h) {
- nilfs_remove_all_gcinode(nilfs);
- kfree(nilfs->ns_gc_inodes_h);
- nilfs->ns_gc_inodes_h = NULL;
- }
-}
-
-static struct inode *alloc_gcinode(struct the_nilfs *nilfs, ino_t ino,
- __u64 cno)
-{
- struct inode *inode;
- struct nilfs_inode_info *ii;
-
- inode = nilfs_mdt_new_common(nilfs, NULL, ino, GFP_NOFS, 0);
- if (!inode)
- return NULL;
+ struct nilfs_inode_info *ii = NILFS_I(inode);
+ struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs;
- inode->i_op = NULL;
- inode->i_fop = NULL;
+ inode->i_mode = S_IFREG;
+ mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
inode->i_mapping->a_ops = &def_gcinode_aops;
+ inode->i_mapping->backing_dev_info = inode->i_sb->s_bdi;
- ii = NILFS_I(inode);
- ii->i_cno = cno;
ii->i_flags = 0;
- ii->i_state = 1 << NILFS_I_GCINODE;
- ii->i_bh = NULL;
nilfs_bmap_init_gc(ii->i_bmap);
- return inode;
-}
-
-static unsigned long ihash(ino_t ino, __u64 cno)
-{
- return hash_long((unsigned long)((ino << 2) + cno),
- NILFS_GCINODE_HASH_BITS);
-}
-
-/*
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fs/nilfs2/ifile.c
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fs/nilfs2/ifile.h
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fs/nilfs2/inode.c
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fs/nilfs2/ioctl.c
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fs/nilfs2/mdt.c
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fs/nilfs2/mdt.h
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fs/nilfs2/namei.c
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fs/nilfs2/nilfs.h
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fs/nilfs2/page.c
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fs/nilfs2/page.h
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fs/nilfs2/recovery.c
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fs/nilfs2/sb.h
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fs/nilfs2/segbuf.c
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fs/nilfs2/segment.c
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fs/nilfs2/segment.h
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fs/nilfs2/sufile.c
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fs/nilfs2/sufile.h
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fs/nilfs2/super.c
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fs/nilfs2/the_nilfs.c
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fs/nilfs2/the_nilfs.h
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include/linux/exportfs.h
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include/linux/nilfs2_fs.h
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