2005-04-16 16:20:36 -06:00
|
|
|
/*
|
|
|
|
* Super block/filesystem wide operations
|
|
|
|
*
|
|
|
|
* Copyright (C) 1996 Peter J. Braam <braam@maths.ox.ac.uk> and
|
|
|
|
* Michael Callahan <callahan@maths.ox.ac.uk>
|
|
|
|
*
|
|
|
|
* Rewritten for Linux 2.1. Peter Braam <braam@cs.cmu.edu>
|
|
|
|
* Copyright (C) Carnegie Mellon University
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/mm.h>
|
|
|
|
#include <linux/string.h>
|
|
|
|
#include <linux/stat.h>
|
|
|
|
#include <linux/errno.h>
|
|
|
|
#include <linux/unistd.h>
|
2010-10-25 00:03:46 -06:00
|
|
|
#include <linux/mutex.h>
|
2010-10-25 00:03:44 -06:00
|
|
|
#include <linux/spinlock.h>
|
2005-04-16 16:20:36 -06:00
|
|
|
#include <linux/file.h>
|
|
|
|
#include <linux/vfs.h>
|
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 02:04:11 -06:00
|
|
|
#include <linux/slab.h>
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
#include <asm/system.h>
|
|
|
|
#include <asm/uaccess.h>
|
|
|
|
|
|
|
|
#include <linux/fs.h>
|
|
|
|
#include <linux/vmalloc.h>
|
|
|
|
|
|
|
|
#include <linux/coda.h>
|
|
|
|
#include <linux/coda_psdev.h>
|
2011-01-12 14:36:09 -07:00
|
|
|
#include "coda_linux.h"
|
|
|
|
#include "coda_cache.h"
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2006-03-24 04:15:53 -07:00
|
|
|
#include "coda_int.h"
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
/* VFS super_block ops */
|
2010-06-07 12:34:48 -06:00
|
|
|
static void coda_evict_inode(struct inode *);
|
2005-04-16 16:20:36 -06:00
|
|
|
static void coda_put_super(struct super_block *);
|
2006-06-23 03:02:58 -06:00
|
|
|
static int coda_statfs(struct dentry *dentry, struct kstatfs *buf);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2006-12-06 21:33:20 -07:00
|
|
|
static struct kmem_cache * coda_inode_cachep;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
static struct inode *coda_alloc_inode(struct super_block *sb)
|
|
|
|
{
|
|
|
|
struct coda_inode_info *ei;
|
2010-12-09 15:25:09 -07:00
|
|
|
ei = kmem_cache_alloc(coda_inode_cachep, GFP_KERNEL);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (!ei)
|
|
|
|
return NULL;
|
|
|
|
memset(&ei->c_fid, 0, sizeof(struct CodaFid));
|
|
|
|
ei->c_flags = 0;
|
|
|
|
ei->c_uid = 0;
|
|
|
|
ei->c_cached_perm = 0;
|
2010-10-25 00:03:44 -06:00
|
|
|
spin_lock_init(&ei->c_lock);
|
2005-04-16 16:20:36 -06:00
|
|
|
return &ei->vfs_inode;
|
|
|
|
}
|
|
|
|
|
2011-01-06 23:49:49 -07:00
|
|
|
static void coda_i_callback(struct rcu_head *head)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2011-01-06 23:49:49 -07:00
|
|
|
struct inode *inode = container_of(head, struct inode, i_rcu);
|
2005-04-16 16:20:36 -06:00
|
|
|
kmem_cache_free(coda_inode_cachep, ITOC(inode));
|
|
|
|
}
|
|
|
|
|
2011-01-06 23:49:49 -07:00
|
|
|
static void coda_destroy_inode(struct inode *inode)
|
|
|
|
{
|
|
|
|
call_rcu(&inode->i_rcu, coda_i_callback);
|
|
|
|
}
|
|
|
|
|
2008-07-25 20:45:34 -06:00
|
|
|
static void init_once(void *foo)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
|
|
|
struct coda_inode_info *ei = (struct coda_inode_info *) foo;
|
|
|
|
|
2007-05-16 23:10:57 -06:00
|
|
|
inode_init_once(&ei->vfs_inode);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
2007-07-19 19:11:58 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
int coda_init_inodecache(void)
|
|
|
|
{
|
|
|
|
coda_inode_cachep = kmem_cache_create("coda_inode_cache",
|
|
|
|
sizeof(struct coda_inode_info),
|
[PATCH] cpuset memory spread: slab cache filesystems
Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD
memory spreading.
If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's
in a cpuset with the 'memory_spread_slab' option enabled goes to allocate
from such a slab cache, the allocations are spread evenly over all the
memory nodes (task->mems_allowed) allowed to that task, instead of favoring
allocation on the node local to the current cpu.
The following inode and similar caches are marked SLAB_MEM_SPREAD:
file cache
==== =====
fs/adfs/super.c adfs_inode_cache
fs/affs/super.c affs_inode_cache
fs/befs/linuxvfs.c befs_inode_cache
fs/bfs/inode.c bfs_inode_cache
fs/block_dev.c bdev_cache
fs/cifs/cifsfs.c cifs_inode_cache
fs/coda/inode.c coda_inode_cache
fs/dquot.c dquot
fs/efs/super.c efs_inode_cache
fs/ext2/super.c ext2_inode_cache
fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr
fs/ext3/super.c ext3_inode_cache
fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr
fs/fat/cache.c fat_cache
fs/fat/inode.c fat_inode_cache
fs/freevxfs/vxfs_super.c vxfs_inode
fs/hpfs/super.c hpfs_inode_cache
fs/isofs/inode.c isofs_inode_cache
fs/jffs/inode-v23.c jffs_fm
fs/jffs2/super.c jffs2_i
fs/jfs/super.c jfs_ip
fs/minix/inode.c minix_inode_cache
fs/ncpfs/inode.c ncp_inode_cache
fs/nfs/direct.c nfs_direct_cache
fs/nfs/inode.c nfs_inode_cache
fs/ntfs/super.c ntfs_big_inode_cache_name
fs/ntfs/super.c ntfs_inode_cache
fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache
fs/ocfs2/super.c ocfs2_inode_cache
fs/proc/inode.c proc_inode_cache
fs/qnx4/inode.c qnx4_inode_cache
fs/reiserfs/super.c reiser_inode_cache
fs/romfs/inode.c romfs_inode_cache
fs/smbfs/inode.c smb_inode_cache
fs/sysv/inode.c sysv_inode_cache
fs/udf/super.c udf_inode_cache
fs/ufs/super.c ufs_inode_cache
net/socket.c sock_inode_cache
net/sunrpc/rpc_pipe.c rpc_inode_cache
The choice of which slab caches to so mark was quite simple. I marked
those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache,
inode_cache, and buffer_head, which were marked in a previous patch. Even
though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same
potentially large file system i/o related slab caches as we need for memory
spreading.
Given that the rule now becomes "wherever you would have used a
SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use
the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain.
Future file system writers will just copy one of the existing file system
slab cache setups and tend to get it right without thinking.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 04:16:05 -07:00
|
|
|
0, SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
|
2007-07-19 19:11:58 -06:00
|
|
|
init_once);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (coda_inode_cachep == NULL)
|
|
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void coda_destroy_inodecache(void)
|
|
|
|
{
|
2006-09-27 02:49:40 -06:00
|
|
|
kmem_cache_destroy(coda_inode_cachep);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static int coda_remount(struct super_block *sb, int *flags, char *data)
|
|
|
|
{
|
2007-07-19 02:48:44 -06:00
|
|
|
*flags |= MS_NOATIME;
|
2005-04-16 16:20:36 -06:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* exported operations */
|
2007-02-12 01:55:41 -07:00
|
|
|
static const struct super_operations coda_super_operations =
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
|
|
|
.alloc_inode = coda_alloc_inode,
|
|
|
|
.destroy_inode = coda_destroy_inode,
|
2010-06-07 12:34:48 -06:00
|
|
|
.evict_inode = coda_evict_inode,
|
2005-04-16 16:20:36 -06:00
|
|
|
.put_super = coda_put_super,
|
|
|
|
.statfs = coda_statfs,
|
|
|
|
.remount_fs = coda_remount,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int get_device_index(struct coda_mount_data *data)
|
|
|
|
{
|
|
|
|
struct file *file;
|
|
|
|
struct inode *inode;
|
|
|
|
int idx;
|
|
|
|
|
|
|
|
if(data == NULL) {
|
|
|
|
printk("coda_read_super: Bad mount data\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(data->version != CODA_MOUNT_VERSION) {
|
|
|
|
printk("coda_read_super: Bad mount version\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
file = fget(data->fd);
|
|
|
|
inode = NULL;
|
|
|
|
if(file)
|
2006-12-08 03:36:56 -07:00
|
|
|
inode = file->f_path.dentry->d_inode;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
if(!inode || !S_ISCHR(inode->i_mode) ||
|
|
|
|
imajor(inode) != CODA_PSDEV_MAJOR) {
|
|
|
|
if(file)
|
|
|
|
fput(file);
|
|
|
|
|
|
|
|
printk("coda_read_super: Bad file\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
idx = iminor(inode);
|
|
|
|
fput(file);
|
|
|
|
|
|
|
|
if(idx < 0 || idx >= MAX_CODADEVS) {
|
|
|
|
printk("coda_read_super: Bad minor number\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return idx;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int coda_fill_super(struct super_block *sb, void *data, int silent)
|
|
|
|
{
|
2007-07-19 02:48:50 -06:00
|
|
|
struct inode *root = NULL;
|
2010-10-25 00:03:46 -06:00
|
|
|
struct venus_comm *vc;
|
2005-04-16 16:20:36 -06:00
|
|
|
struct CodaFid fid;
|
2007-07-19 02:48:50 -06:00
|
|
|
int error;
|
2005-04-16 16:20:36 -06:00
|
|
|
int idx;
|
|
|
|
|
|
|
|
idx = get_device_index((struct coda_mount_data *) data);
|
|
|
|
|
|
|
|
/* Ignore errors in data, for backward compatibility */
|
|
|
|
if(idx == -1)
|
|
|
|
idx = 0;
|
|
|
|
|
|
|
|
printk(KERN_INFO "coda_read_super: device index: %i\n", idx);
|
|
|
|
|
|
|
|
vc = &coda_comms[idx];
|
2010-10-25 00:03:46 -06:00
|
|
|
mutex_lock(&vc->vc_mutex);
|
2010-10-25 00:03:45 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
if (!vc->vc_inuse) {
|
|
|
|
printk("coda_read_super: No pseudo device\n");
|
2010-10-25 00:03:45 -06:00
|
|
|
error = -EINVAL;
|
|
|
|
goto unlock_out;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2010-10-25 00:03:45 -06:00
|
|
|
if (vc->vc_sb) {
|
2005-04-16 16:20:36 -06:00
|
|
|
printk("coda_read_super: Device already mounted\n");
|
2010-10-25 00:03:45 -06:00
|
|
|
error = -EBUSY;
|
|
|
|
goto unlock_out;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2010-04-22 04:12:40 -06:00
|
|
|
error = bdi_setup_and_register(&vc->bdi, "coda", BDI_CAP_MAP_COPY);
|
|
|
|
if (error)
|
2010-10-25 00:03:45 -06:00
|
|
|
goto unlock_out;
|
2010-04-22 04:12:40 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
vc->vc_sb = sb;
|
2010-10-25 00:03:46 -06:00
|
|
|
mutex_unlock(&vc->vc_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2007-07-19 02:48:50 -06:00
|
|
|
sb->s_fs_info = vc;
|
2007-07-19 02:48:44 -06:00
|
|
|
sb->s_flags |= MS_NOATIME;
|
|
|
|
sb->s_blocksize = 4096; /* XXXXX what do we put here?? */
|
|
|
|
sb->s_blocksize_bits = 12;
|
|
|
|
sb->s_magic = CODA_SUPER_MAGIC;
|
|
|
|
sb->s_op = &coda_super_operations;
|
2011-01-12 14:25:02 -07:00
|
|
|
sb->s_d_op = &coda_dentry_operations;
|
2010-04-22 04:12:40 -06:00
|
|
|
sb->s_bdi = &vc->bdi;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
/* get root fid from Venus: this needs the root inode */
|
|
|
|
error = venus_rootfid(sb, &fid);
|
|
|
|
if ( error ) {
|
|
|
|
printk("coda_read_super: coda_get_rootfid failed with %d\n",
|
|
|
|
error);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
printk("coda_read_super: rootfid is %s\n", coda_f2s(&fid));
|
|
|
|
|
|
|
|
/* make root inode */
|
|
|
|
error = coda_cnode_make(&root, &fid, sb);
|
|
|
|
if ( error || !root ) {
|
|
|
|
printk("Failure of coda_cnode_make for root: error %d\n", error);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
printk("coda_read_super: rootinode is %ld dev %s\n",
|
|
|
|
root->i_ino, root->i_sb->s_id);
|
|
|
|
sb->s_root = d_alloc_root(root);
|
2010-10-25 00:03:45 -06:00
|
|
|
if (!sb->s_root) {
|
|
|
|
error = -EINVAL;
|
2005-04-16 16:20:36 -06:00
|
|
|
goto error;
|
2010-10-25 00:03:45 -06:00
|
|
|
}
|
2010-08-15 14:51:10 -06:00
|
|
|
return 0;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2010-10-25 00:03:45 -06:00
|
|
|
error:
|
2005-04-16 16:20:36 -06:00
|
|
|
if (root)
|
2007-07-19 02:48:50 -06:00
|
|
|
iput(root);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2010-10-25 00:03:46 -06:00
|
|
|
mutex_lock(&vc->vc_mutex);
|
2010-10-25 00:03:45 -06:00
|
|
|
bdi_destroy(&vc->bdi);
|
|
|
|
vc->vc_sb = NULL;
|
|
|
|
sb->s_fs_info = NULL;
|
|
|
|
unlock_out:
|
2010-10-25 00:03:46 -06:00
|
|
|
mutex_unlock(&vc->vc_mutex);
|
2010-10-25 00:03:45 -06:00
|
|
|
return error;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static void coda_put_super(struct super_block *sb)
|
|
|
|
{
|
2010-10-25 00:03:46 -06:00
|
|
|
struct venus_comm *vcp = coda_vcp(sb);
|
|
|
|
mutex_lock(&vcp->vc_mutex);
|
|
|
|
bdi_destroy(&vcp->bdi);
|
|
|
|
vcp->vc_sb = NULL;
|
2007-07-19 02:48:50 -06:00
|
|
|
sb->s_fs_info = NULL;
|
2010-10-25 00:03:46 -06:00
|
|
|
mutex_unlock(&vcp->vc_mutex);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
printk("Coda: Bye bye.\n");
|
|
|
|
}
|
|
|
|
|
2010-06-07 12:34:48 -06:00
|
|
|
static void coda_evict_inode(struct inode *inode)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2010-06-07 12:34:48 -06:00
|
|
|
truncate_inode_pages(&inode->i_data, 0);
|
|
|
|
end_writeback(inode);
|
2005-04-16 16:20:36 -06:00
|
|
|
coda_cache_clear_inode(inode);
|
|
|
|
}
|
|
|
|
|
|
|
|
int coda_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
|
|
|
|
{
|
|
|
|
int err = coda_revalidate_inode(dentry);
|
|
|
|
if (!err)
|
|
|
|
generic_fillattr(dentry->d_inode, stat);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
int coda_setattr(struct dentry *de, struct iattr *iattr)
|
|
|
|
{
|
|
|
|
struct inode *inode = de->d_inode;
|
|
|
|
struct coda_vattr vattr;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
memset(&vattr, 0, sizeof(vattr));
|
|
|
|
|
|
|
|
inode->i_ctime = CURRENT_TIME_SEC;
|
|
|
|
coda_iattr_to_vattr(iattr, &vattr);
|
|
|
|
vattr.va_type = C_VNON; /* cannot set type */
|
|
|
|
|
|
|
|
/* Venus is responsible for truncating the container-file!!! */
|
|
|
|
error = venus_setattr(inode->i_sb, coda_i2f(inode), &vattr);
|
|
|
|
|
2010-10-25 00:03:45 -06:00
|
|
|
if (!error) {
|
2005-04-16 16:20:36 -06:00
|
|
|
coda_vattr_to_iattr(inode, &vattr);
|
|
|
|
coda_cache_clear_inode(inode);
|
|
|
|
}
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2007-02-12 01:55:38 -07:00
|
|
|
const struct inode_operations coda_file_inode_operations = {
|
2005-04-16 16:20:36 -06:00
|
|
|
.permission = coda_permission,
|
|
|
|
.getattr = coda_getattr,
|
|
|
|
.setattr = coda_setattr,
|
|
|
|
};
|
|
|
|
|
2006-06-23 03:02:58 -06:00
|
|
|
static int coda_statfs(struct dentry *dentry, struct kstatfs *buf)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
2006-06-23 03:02:58 -06:00
|
|
|
error = venus_statfs(dentry, buf);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
if (error) {
|
|
|
|
/* fake something like AFS does */
|
|
|
|
buf->f_blocks = 9000000;
|
|
|
|
buf->f_bfree = 9000000;
|
|
|
|
buf->f_bavail = 9000000;
|
|
|
|
buf->f_files = 9000000;
|
|
|
|
buf->f_ffree = 9000000;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* and fill in the rest */
|
|
|
|
buf->f_type = CODA_SUPER_MAGIC;
|
2007-07-19 02:48:44 -06:00
|
|
|
buf->f_bsize = 4096;
|
2005-04-16 16:20:36 -06:00
|
|
|
buf->f_namelen = CODA_MAXNAMLEN;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* init_coda: used by filesystems.c to register coda */
|
|
|
|
|
2010-07-25 01:46:36 -06:00
|
|
|
static struct dentry *coda_mount(struct file_system_type *fs_type,
|
|
|
|
int flags, const char *dev_name, void *data)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2010-07-25 01:46:36 -06:00
|
|
|
return mount_nodev(fs_type, flags, data, coda_fill_super);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
struct file_system_type coda_fs_type = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.name = "coda",
|
2010-07-25 01:46:36 -06:00
|
|
|
.mount = coda_mount,
|
2005-04-16 16:20:36 -06:00
|
|
|
.kill_sb = kill_anon_super,
|
|
|
|
.fs_flags = FS_BINARY_MOUNTDATA,
|
|
|
|
};
|
|
|
|
|