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-rw-r--r--fs/efs/Kconfig14
-rw-r--r--fs/efs/dir.c94
-rw-r--r--fs/efs/efs.h8
-rw-r--r--fs/efs/file.c14
-rw-r--r--fs/efs/inode.c51
-rw-r--r--fs/efs/namei.c55
-rw-r--r--fs/efs/super.c133
-rw-r--r--fs/efs/symlink.c7
8 files changed, 174 insertions, 202 deletions
diff --git a/fs/efs/Kconfig b/fs/efs/Kconfig
new file mode 100644
index 00000000000..d020e3c30fe
--- /dev/null
+++ b/fs/efs/Kconfig
@@ -0,0 +1,14 @@
+config EFS_FS
+ tristate "EFS file system support (read only)"
+ depends on BLOCK
+ help
+ EFS is an older file system used for non-ISO9660 CD-ROMs and hard
+ disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
+ uses the XFS file system for hard disk partitions however).
+
+ This implementation only offers read-only access. If you don't know
+ what all this is about, it's safe to say N. For more information
+ about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
+
+ To compile the EFS file system support as a module, choose M here: the
+ module will be called efs.
diff --git a/fs/efs/dir.c b/fs/efs/dir.c
index 49308a29798..ce63b24f7c3 100644
--- a/fs/efs/dir.c
+++ b/fs/efs/dir.c
@@ -5,109 +5,99 @@
*/
#include <linux/buffer_head.h>
-#include <linux/smp_lock.h>
#include "efs.h"
-static int efs_readdir(struct file *, void *, filldir_t);
+static int efs_readdir(struct file *, struct dir_context *);
const struct file_operations efs_dir_operations = {
+ .llseek = generic_file_llseek,
.read = generic_read_dir,
- .readdir = efs_readdir,
+ .iterate = efs_readdir,
};
const struct inode_operations efs_dir_inode_operations = {
.lookup = efs_lookup,
};
-static int efs_readdir(struct file *filp, void *dirent, filldir_t filldir) {
- struct inode *inode = filp->f_path.dentry->d_inode;
- struct buffer_head *bh;
-
- struct efs_dir *dirblock;
- struct efs_dentry *dirslot;
- efs_ino_t inodenum;
+static int efs_readdir(struct file *file, struct dir_context *ctx)
+{
+ struct inode *inode = file_inode(file);
efs_block_t block;
- int slot, namelen;
- char *nameptr;
+ int slot;
if (inode->i_size & (EFS_DIRBSIZE-1))
- printk(KERN_WARNING "EFS: WARNING: readdir(): directory size not a multiple of EFS_DIRBSIZE\n");
-
- lock_kernel();
+ pr_warn("%s(): directory size not a multiple of EFS_DIRBSIZE\n",
+ __func__);
/* work out where this entry can be found */
- block = filp->f_pos >> EFS_DIRBSIZE_BITS;
+ block = ctx->pos >> EFS_DIRBSIZE_BITS;
/* each block contains at most 256 slots */
- slot = filp->f_pos & 0xff;
+ slot = ctx->pos & 0xff;
/* look at all blocks */
while (block < inode->i_blocks) {
+ struct efs_dir *dirblock;
+ struct buffer_head *bh;
+
/* read the dir block */
bh = sb_bread(inode->i_sb, efs_bmap(inode, block));
if (!bh) {
- printk(KERN_ERR "EFS: readdir(): failed to read dir block %d\n", block);
+ pr_err("%s(): failed to read dir block %d\n",
+ __func__, block);
break;
}
dirblock = (struct efs_dir *) bh->b_data;
if (be16_to_cpu(dirblock->magic) != EFS_DIRBLK_MAGIC) {
- printk(KERN_ERR "EFS: readdir(): invalid directory block\n");
+ pr_err("%s(): invalid directory block\n", __func__);
brelse(bh);
break;
}
- while (slot < dirblock->slots) {
- if (dirblock->space[slot] == 0) {
- slot++;
+ for (; slot < dirblock->slots; slot++) {
+ struct efs_dentry *dirslot;
+ efs_ino_t inodenum;
+ const char *nameptr;
+ int namelen;
+
+ if (dirblock->space[slot] == 0)
continue;
- }
dirslot = (struct efs_dentry *) (((char *) bh->b_data) + EFS_SLOTAT(dirblock, slot));
inodenum = be32_to_cpu(dirslot->inode);
namelen = dirslot->namelen;
nameptr = dirslot->name;
+ pr_debug("%s(): block %d slot %d/%d: inode %u, name \"%s\", namelen %u\n",
+ __func__, block, slot, dirblock->slots-1,
+ inodenum, nameptr, namelen);
+ if (!namelen)
+ continue;
+ /* found the next entry */
+ ctx->pos = (block << EFS_DIRBSIZE_BITS) | slot;
-#ifdef DEBUG
- printk(KERN_DEBUG "EFS: readdir(): block %d slot %d/%d: inode %u, name \"%s\", namelen %u\n", block, slot, dirblock->slots-1, inodenum, nameptr, namelen);
-#endif
- if (namelen > 0) {
- /* found the next entry */
- filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
-
- /* copy filename and data in dirslot */
- filldir(dirent, nameptr, namelen, filp->f_pos, inodenum, DT_UNKNOWN);
-
- /* sanity check */
- if (nameptr - (char *) dirblock + namelen > EFS_DIRBSIZE) {
- printk(KERN_WARNING "EFS: directory entry %d exceeds directory block\n", slot);
- slot++;
- continue;
- }
-
- /* store position of next slot */
- if (++slot == dirblock->slots) {
- slot = 0;
- block++;
- }
+ /* sanity check */
+ if (nameptr - (char *) dirblock + namelen > EFS_DIRBSIZE) {
+ pr_warn("directory entry %d exceeds directory block\n",
+ slot);
+ continue;
+ }
+
+ /* copy filename and data in dirslot */
+ if (!dir_emit(ctx, nameptr, namelen, inodenum, DT_UNKNOWN)) {
brelse(bh);
- filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
- goto out;
+ return 0;
}
- slot++;
}
brelse(bh);
slot = 0;
block++;
}
-
- filp->f_pos = (block << EFS_DIRBSIZE_BITS) | slot;
-out:
- unlock_kernel();
+ ctx->pos = (block << EFS_DIRBSIZE_BITS) | slot;
return 0;
}
diff --git a/fs/efs/efs.h b/fs/efs/efs.h
index d8305b582ab..5bbf9612140 100644
--- a/fs/efs/efs.h
+++ b/fs/efs/efs.h
@@ -7,6 +7,12 @@
#ifndef _EFS_EFS_H_
#define _EFS_EFS_H_
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <asm/uaccess.h>
@@ -129,7 +135,7 @@ extern struct inode *efs_iget(struct super_block *, unsigned long);
extern efs_block_t efs_map_block(struct inode *, efs_block_t);
extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int);
-extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *);
+extern struct dentry *efs_lookup(struct inode *, struct dentry *, unsigned int);
extern struct dentry *efs_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type);
extern struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid,
diff --git a/fs/efs/file.c b/fs/efs/file.c
index 1ccb364ffa6..a37dcee4686 100644
--- a/fs/efs/file.c
+++ b/fs/efs/file.c
@@ -22,10 +22,8 @@ int efs_get_block(struct inode *inode, sector_t iblock,
/*
* i have no idea why this happens as often as it does
*/
- printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
- block,
- inode->i_blocks,
- inode->i_size);
+ pr_warn("%s(): block %d >= %ld (filesize %ld)\n",
+ __func__, block, inode->i_blocks, inode->i_size);
#endif
return 0;
}
@@ -38,7 +36,7 @@ int efs_get_block(struct inode *inode, sector_t iblock,
int efs_bmap(struct inode *inode, efs_block_t block) {
if (block < 0) {
- printk(KERN_WARNING "EFS: bmap(): block < 0\n");
+ pr_warn("%s(): block < 0\n", __func__);
return 0;
}
@@ -48,10 +46,8 @@ int efs_bmap(struct inode *inode, efs_block_t block) {
/*
* i have no idea why this happens as often as it does
*/
- printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
- block,
- inode->i_blocks,
- inode->i_size);
+ pr_warn("%s(): block %d >= %ld (filesize %ld)\n",
+ __func__, block, inode->i_blocks, inode->i_size);
#endif
return 0;
}
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
index a8e7797b947..079d20306ee 100644
--- a/fs/efs/inode.c
+++ b/fs/efs/inode.c
@@ -23,7 +23,6 @@ static sector_t _efs_bmap(struct address_space *mapping, sector_t block)
}
static const struct address_space_operations efs_aops = {
.readpage = efs_readpage,
- .sync_page = block_sync_page,
.bmap = _efs_bmap
};
@@ -58,7 +57,7 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino)
struct inode *inode;
inode = iget_locked(super, ino);
- if (IS_ERR(inode))
+ if (!inode)
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
return inode;
@@ -90,16 +89,16 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino)
bh = sb_bread(inode->i_sb, block);
if (!bh) {
- printk(KERN_WARNING "EFS: bread() failed at block %d\n", block);
+ pr_warn("%s() failed at block %d\n", __func__, block);
goto read_inode_error;
}
efs_inode = (struct efs_dinode *) (bh->b_data + offset);
inode->i_mode = be16_to_cpu(efs_inode->di_mode);
- inode->i_nlink = be16_to_cpu(efs_inode->di_nlink);
- inode->i_uid = (uid_t)be16_to_cpu(efs_inode->di_uid);
- inode->i_gid = (gid_t)be16_to_cpu(efs_inode->di_gid);
+ set_nlink(inode, be16_to_cpu(efs_inode->di_nlink));
+ i_uid_write(inode, (uid_t)be16_to_cpu(efs_inode->di_uid));
+ i_gid_write(inode, (gid_t)be16_to_cpu(efs_inode->di_gid));
inode->i_size = be32_to_cpu(efs_inode->di_size);
inode->i_atime.tv_sec = be32_to_cpu(efs_inode->di_atime);
inode->i_mtime.tv_sec = be32_to_cpu(efs_inode->di_mtime);
@@ -131,19 +130,16 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino)
for(i = 0; i < EFS_DIRECTEXTENTS; i++) {
extent_copy(&(efs_inode->di_u.di_extents[i]), &(in->extents[i]));
if (i < in->numextents && in->extents[i].cooked.ex_magic != 0) {
- printk(KERN_WARNING "EFS: extent %d has bad magic number in inode %lu\n", i, inode->i_ino);
+ pr_warn("extent %d has bad magic number in inode %lu\n",
+ i, inode->i_ino);
brelse(bh);
goto read_inode_error;
}
}
brelse(bh);
-
-#ifdef DEBUG
- printk(KERN_DEBUG "EFS: efs_iget(): inode %lu, extents %d, mode %o\n",
- inode->i_ino, in->numextents, inode->i_mode);
-#endif
-
+ pr_debug("efs_iget(): inode %lu, extents %d, mode %o\n",
+ inode->i_ino, in->numextents, inode->i_mode);
switch (inode->i_mode & S_IFMT) {
case S_IFDIR:
inode->i_op = &efs_dir_inode_operations;
@@ -163,7 +159,7 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino)
init_special_inode(inode, inode->i_mode, device);
break;
default:
- printk(KERN_WARNING "EFS: unsupported inode mode %o\n", inode->i_mode);
+ pr_warn("unsupported inode mode %o\n", inode->i_mode);
goto read_inode_error;
break;
}
@@ -172,7 +168,7 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino)
return inode;
read_inode_error:
- printk(KERN_WARNING "EFS: failed to read inode %lu\n", inode->i_ino);
+ pr_warn("failed to read inode %lu\n", inode->i_ino);
iget_failed(inode);
return ERR_PTR(-EIO);
}
@@ -217,7 +213,7 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
/* if we only have one extent then nothing can be found */
if (in->numextents == 1) {
- printk(KERN_ERR "EFS: map_block() failed to map (1 extent)\n");
+ pr_err("%s() failed to map (1 extent)\n", __func__);
return 0;
}
@@ -235,13 +231,12 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
}
}
- printk(KERN_ERR "EFS: map_block() failed to map block %u (dir)\n", block);
+ pr_err("%s() failed to map block %u (dir)\n", __func__, block);
return 0;
}
-#ifdef DEBUG
- printk(KERN_DEBUG "EFS: map_block(): indirect search for logical block %u\n", block);
-#endif
+ pr_debug("%s(): indirect search for logical block %u\n",
+ __func__, block);
direxts = in->extents[0].cooked.ex_offset;
indexts = in->numextents;
@@ -263,7 +258,8 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
if (dirext == direxts) {
/* should never happen */
- printk(KERN_ERR "EFS: couldn't find direct extent for indirect extent %d (block %u)\n", cur, block);
+ pr_err("couldn't find direct extent for indirect extent %d (block %u)\n",
+ cur, block);
if (bh) brelse(bh);
return 0;
}
@@ -280,12 +276,12 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
bh = sb_bread(inode->i_sb, iblock);
if (!bh) {
- printk(KERN_ERR "EFS: bread() failed at block %d\n", iblock);
+ pr_err("%s() failed at block %d\n",
+ __func__, iblock);
return 0;
}
-#ifdef DEBUG
- printk(KERN_DEBUG "EFS: map_block(): read indirect extent block %d\n", iblock);
-#endif
+ pr_debug("%s(): read indirect extent block %d\n",
+ __func__, iblock);
first = 0;
lastblock = iblock;
}
@@ -295,7 +291,8 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
extent_copy(&(exts[ioffset]), &ext);
if (ext.cooked.ex_magic != 0) {
- printk(KERN_ERR "EFS: extent %d has bad magic number in block %d\n", cur, iblock);
+ pr_err("extent %d has bad magic number in block %d\n",
+ cur, iblock);
if (bh) brelse(bh);
return 0;
}
@@ -307,7 +304,7 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
}
}
if (bh) brelse(bh);
- printk(KERN_ERR "EFS: map_block() failed to map block %u (indir)\n", block);
+ pr_err("%s() failed to map block %u (indir)\n", __func__, block);
return 0;
}
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index 3a404e7fad5..356c044e2cd 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -8,7 +8,6 @@
#include <linux/buffer_head.h>
#include <linux/string.h>
-#include <linux/smp_lock.h>
#include <linux/exportfs.h>
#include "efs.h"
@@ -24,20 +23,22 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
efs_block_t block;
if (inode->i_size & (EFS_DIRBSIZE-1))
- printk(KERN_WARNING "EFS: WARNING: find_entry(): directory size not a multiple of EFS_DIRBSIZE\n");
+ pr_warn("%s(): directory size not a multiple of EFS_DIRBSIZE\n",
+ __func__);
for(block = 0; block < inode->i_blocks; block++) {
bh = sb_bread(inode->i_sb, efs_bmap(inode, block));
if (!bh) {
- printk(KERN_ERR "EFS: find_entry(): failed to read dir block %d\n", block);
+ pr_err("%s(): failed to read dir block %d\n",
+ __func__, block);
return 0;
}
dirblock = (struct efs_dir *) bh->b_data;
if (be16_to_cpu(dirblock->magic) != EFS_DIRBLK_MAGIC) {
- printk(KERN_ERR "EFS: find_entry(): invalid directory block\n");
+ pr_err("%s(): invalid directory block\n", __func__);
brelse(bh);
return(0);
}
@@ -59,23 +60,16 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
return(0);
}
-struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) {
+struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+{
efs_ino_t inodenum;
- struct inode * inode = NULL;
+ struct inode *inode = NULL;
- lock_kernel();
inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len);
- if (inodenum) {
+ if (inodenum)
inode = efs_iget(dir->i_sb, inodenum);
- if (IS_ERR(inode)) {
- unlock_kernel();
- return ERR_CAST(inode);
- }
- }
- unlock_kernel();
- d_add(dentry, inode);
- return NULL;
+ return d_splice_alias(inode, dentry);
}
static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino,
@@ -113,35 +107,12 @@ struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid,
struct dentry *efs_get_parent(struct dentry *child)
{
- struct dentry *parent;
- struct inode *inode;
+ struct dentry *parent = ERR_PTR(-ENOENT);
efs_ino_t ino;
- long error;
-
- lock_kernel();
- error = -ENOENT;
ino = efs_find_entry(child->d_inode, "..", 2);
- if (!ino)
- goto fail;
+ if (ino)
+ parent = d_obtain_alias(efs_iget(child->d_inode->i_sb, ino));
- inode = efs_iget(child->d_inode->i_sb, ino);
- if (IS_ERR(inode)) {
- error = PTR_ERR(inode);
- goto fail;
- }
-
- error = -ENOMEM;
- parent = d_alloc_anon(inode);
- if (!parent)
- goto fail_iput;
-
- unlock_kernel();
return parent;
-
- fail_iput:
- iput(inode);
- fail:
- unlock_kernel();
- return ERR_PTR(error);
}
diff --git a/fs/efs/super.c b/fs/efs/super.c
index d733531b55e..7fca462ea4e 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -20,19 +20,27 @@
static int efs_statfs(struct dentry *dentry, struct kstatfs *buf);
static int efs_fill_super(struct super_block *s, void *d, int silent);
-static int efs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *efs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, efs_fill_super, mnt);
+ return mount_bdev(fs_type, flags, dev_name, data, efs_fill_super);
+}
+
+static void efs_kill_sb(struct super_block *s)
+{
+ struct efs_sb_info *sbi = SUPER_INFO(s);
+ kill_block_super(s);
+ kfree(sbi);
}
static struct file_system_type efs_fs_type = {
.owner = THIS_MODULE,
.name = "efs",
- .get_sb = efs_get_sb,
- .kill_sb = kill_block_super,
+ .mount = efs_mount,
+ .kill_sb = efs_kill_sb,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("efs");
static struct pt_types sgi_pt_types[] = {
{0x00, "SGI vh"},
@@ -65,19 +73,25 @@ static struct inode *efs_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
-static void efs_destroy_inode(struct inode *inode)
+static void efs_i_callback(struct rcu_head *head)
{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
kmem_cache_free(efs_inode_cachep, INODE_INFO(inode));
}
-static void init_once(struct kmem_cache *cachep, void *foo)
+static void efs_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, efs_i_callback);
+}
+
+static void init_once(void *foo)
{
struct efs_inode_info *ei = (struct efs_inode_info *) foo;
inode_init_once(&ei->vfs_inode);
}
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
efs_inode_cachep = kmem_cache_create("efs_inode_cache",
sizeof(struct efs_inode_info),
@@ -90,17 +104,17 @@ static int init_inodecache(void)
static void destroy_inodecache(void)
{
+ /*
+ * Make sure all delayed rcu free inodes are flushed before we
+ * destroy cache.
+ */
+ rcu_barrier();
kmem_cache_destroy(efs_inode_cachep);
}
-static void efs_put_super(struct super_block *s)
-{
- kfree(s->s_fs_info);
- s->s_fs_info = NULL;
-}
-
static int efs_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
*flags |= MS_RDONLY;
return 0;
}
@@ -108,7 +122,6 @@ static int efs_remount(struct super_block *sb, int *flags, char *data)
static const struct super_operations efs_superblock_operations = {
.alloc_inode = efs_alloc_inode,
.destroy_inode = efs_destroy_inode,
- .put_super = efs_put_super,
.statfs = efs_statfs,
.remount_fs = efs_remount,
};
@@ -121,7 +134,7 @@ static const struct export_operations efs_export_ops = {
static int __init init_efs_fs(void) {
int err;
- printk("EFS: "EFS_VERSION" - http://aeschi.ch.eu.org/efs/\n");
+ pr_info(EFS_VERSION" - http://aeschi.ch.eu.org/efs/\n");
err = init_inodecache();
if (err)
goto out1;
@@ -166,12 +179,12 @@ static efs_block_t efs_validate_vh(struct volume_header *vh) {
csum += be32_to_cpu(cs);
}
if (csum) {
- printk(KERN_INFO "EFS: SGI disklabel: checksum bad, label corrupted\n");
+ pr_warn("SGI disklabel: checksum bad, label corrupted\n");
return 0;
}
#ifdef DEBUG
- printk(KERN_DEBUG "EFS: bf: \"%16s\"\n", vh->vh_bootfile);
+ pr_debug("bf: \"%16s\"\n", vh->vh_bootfile);
for(i = 0; i < NVDIR; i++) {
int j;
@@ -183,9 +196,8 @@ static efs_block_t efs_validate_vh(struct volume_header *vh) {
name[j] = (char) 0;
if (name[0]) {
- printk(KERN_DEBUG "EFS: vh: %8s block: 0x%08x size: 0x%08x\n",
- name,
- (int) be32_to_cpu(vh->vh_vd[i].vd_lbn),
+ pr_debug("vh: %8s block: 0x%08x size: 0x%08x\n",
+ name, (int) be32_to_cpu(vh->vh_vd[i].vd_lbn),
(int) be32_to_cpu(vh->vh_vd[i].vd_nbytes));
}
}
@@ -198,12 +210,11 @@ static efs_block_t efs_validate_vh(struct volume_header *vh) {
}
#ifdef DEBUG
if (be32_to_cpu(vh->vh_pt[i].pt_nblks)) {
- printk(KERN_DEBUG "EFS: pt %2d: start: %08d size: %08d type: 0x%02x (%s)\n",
- i,
- (int) be32_to_cpu(vh->vh_pt[i].pt_firstlbn),
- (int) be32_to_cpu(vh->vh_pt[i].pt_nblks),
- pt_type,
- (pt_entry->pt_name) ? pt_entry->pt_name : "unknown");
+ pr_debug("pt %2d: start: %08d size: %08d type: 0x%02x (%s)\n",
+ i, (int)be32_to_cpu(vh->vh_pt[i].pt_firstlbn),
+ (int)be32_to_cpu(vh->vh_pt[i].pt_nblks),
+ pt_type, (pt_entry->pt_name) ?
+ pt_entry->pt_name : "unknown");
}
#endif
if (IS_EFS(pt_type)) {
@@ -213,11 +224,10 @@ static efs_block_t efs_validate_vh(struct volume_header *vh) {
}
if (slice == -1) {
- printk(KERN_NOTICE "EFS: partition table contained no EFS partitions\n");
+ pr_notice("partition table contained no EFS partitions\n");
#ifdef DEBUG
} else {
- printk(KERN_INFO "EFS: using slice %d (type %s, offset 0x%x)\n",
- slice,
+ pr_info("using slice %d (type %s, offset 0x%x)\n", slice,
(pt_entry->pt_name) ? pt_entry->pt_name : "unknown",
sblock);
#endif
@@ -247,7 +257,6 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
struct efs_sb_info *sb;
struct buffer_head *bh;
struct inode *root;
- int ret = -EINVAL;
sb = kzalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
if (!sb)
@@ -256,17 +265,17 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
s->s_magic = EFS_SUPER_MAGIC;
if (!sb_set_blocksize(s, EFS_BLOCKSIZE)) {
- printk(KERN_ERR "EFS: device does not support %d byte blocks\n",
+ pr_err("device does not support %d byte blocks\n",
EFS_BLOCKSIZE);
- goto out_no_fs_ul;
+ return -EINVAL;
}
/* read the vh (volume header) block */
bh = sb_bread(s, 0);
if (!bh) {
- printk(KERN_ERR "EFS: cannot read volume header\n");
- goto out_no_fs_ul;
+ pr_err("cannot read volume header\n");
+ return -EINVAL;
}
/*
@@ -278,27 +287,28 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
brelse(bh);
if (sb->fs_start == -1) {
- goto out_no_fs_ul;
+ return -EINVAL;
}
bh = sb_bread(s, sb->fs_start + EFS_SUPER);
if (!bh) {
- printk(KERN_ERR "EFS: cannot read superblock\n");
- goto out_no_fs_ul;
+ pr_err("cannot read superblock\n");
+ return -EINVAL;
}
if (efs_validate_super(sb, (struct efs_super *) bh->b_data)) {
#ifdef DEBUG
- printk(KERN_WARNING "EFS: invalid superblock at block %u\n", sb->fs_start + EFS_SUPER);
+ pr_warn("invalid superblock at block %u\n",
+ sb->fs_start + EFS_SUPER);
#endif
brelse(bh);
- goto out_no_fs_ul;
+ return -EINVAL;
}
brelse(bh);
if (!(s->s_flags & MS_RDONLY)) {
#ifdef DEBUG
- printk(KERN_INFO "EFS: forcing read-only mode\n");
+ pr_info("forcing read-only mode\n");
#endif
s->s_flags |= MS_RDONLY;
}
@@ -306,43 +316,36 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
s->s_export_op = &efs_export_ops;
root = efs_iget(s, EFS_ROOTINODE);
if (IS_ERR(root)) {
- printk(KERN_ERR "EFS: get root inode failed\n");
- ret = PTR_ERR(root);
- goto out_no_fs;
+ pr_err("get root inode failed\n");
+ return PTR_ERR(root);
}
- s->s_root = d_alloc_root(root);
+ s->s_root = d_make_root(root);
if (!(s->s_root)) {
- printk(KERN_ERR "EFS: get root dentry failed\n");
- iput(root);
- ret = -ENOMEM;
- goto out_no_fs;
+ pr_err("get root dentry failed\n");
+ return -ENOMEM;
}
return 0;
-
-out_no_fs_ul:
-out_no_fs:
- s->s_fs_info = NULL;
- kfree(sb);
- return ret;
}
static int efs_statfs(struct dentry *dentry, struct kstatfs *buf) {
- struct efs_sb_info *sb = SUPER_INFO(dentry->d_sb);
+ struct super_block *sb = dentry->d_sb;
+ struct efs_sb_info *sbi = SUPER_INFO(sb);
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
buf->f_type = EFS_SUPER_MAGIC; /* efs magic number */
buf->f_bsize = EFS_BLOCKSIZE; /* blocksize */
- buf->f_blocks = sb->total_groups * /* total data blocks */
- (sb->group_size - sb->inode_blocks);
- buf->f_bfree = sb->data_free; /* free data blocks */
- buf->f_bavail = sb->data_free; /* free blocks for non-root */
- buf->f_files = sb->total_groups * /* total inodes */
- sb->inode_blocks *
+ buf->f_blocks = sbi->total_groups * /* total data blocks */
+ (sbi->group_size - sbi->inode_blocks);
+ buf->f_bfree = sbi->data_free; /* free data blocks */
+ buf->f_bavail = sbi->data_free; /* free blocks for non-root */
+ buf->f_files = sbi->total_groups * /* total inodes */
+ sbi->inode_blocks *
(EFS_BLOCKSIZE / sizeof(struct efs_dinode));
- buf->f_ffree = sb->inode_free; /* free inodes */
- buf->f_fsid.val[0] = (sb->fs_magic >> 16) & 0xffff; /* fs ID */
- buf->f_fsid.val[1] = sb->fs_magic & 0xffff; /* fs ID */
+ buf->f_ffree = sbi->inode_free; /* free inodes */
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = EFS_MAXNAMELEN; /* max filename length */
return 0;
diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c
index 41911ec83aa..75117d0dac2 100644
--- a/fs/efs/symlink.c
+++ b/fs/efs/symlink.c
@@ -9,7 +9,6 @@
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
-#include <linux/smp_lock.h>
#include "efs.h"
static int efs_symlink_readpage(struct file *file, struct page *page)
@@ -22,9 +21,8 @@ static int efs_symlink_readpage(struct file *file, struct page *page)
err = -ENAMETOOLONG;
if (size > 2 * EFS_BLOCKSIZE)
- goto fail_notlocked;
+ goto fail;
- lock_kernel();
/* read first 512 bytes of link target */
err = -EIO;
bh = sb_bread(inode->i_sb, efs_bmap(inode, 0));
@@ -40,14 +38,11 @@ static int efs_symlink_readpage(struct file *file, struct page *page)
brelse(bh);
}
link[size] = '\0';
- unlock_kernel();
SetPageUptodate(page);
kunmap(page);
unlock_page(page);
return 0;
fail:
- unlock_kernel();
-fail_notlocked:
SetPageError(page);
kunmap(page);
unlock_page(page);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 20:43:50 +0000