#include <linux/config.h>
#include <linux/module.h>
+#include <linux/bitops.h>
#include <stdarg.h>
-#include <asm/bitops.h>
#include <asm/uaccess.h>
#include <asm/system.h>
va_list args;
uspi = UFS_SB(sb)->s_uspi;
- usb1 = ubh_get_usb_first(USPI_UBH);
+ usb1 = ubh_get_usb_first(uspi);
if (!(sb->s_flags & MS_RDONLY)) {
usb1->fs_clean = UFS_FSBAD;
va_list args;
uspi = UFS_SB(sb)->s_uspi;
- usb1 = ubh_get_usb_first(USPI_UBH);
+ usb1 = ubh_get_usb_first(uspi);
if (!(sb->s_flags & MS_RDONLY)) {
usb1->fs_clean = UFS_FSBAD;
/*
* Read on-disk structures associated with cylinder groups
*/
-int ufs_read_cylinder_structures (struct super_block * sb) {
+static int ufs_read_cylinder_structures (struct super_block *sb)
+{
struct ufs_sb_info * sbi = UFS_SB(sb);
struct ufs_sb_private_info * uspi;
struct ufs_super_block *usb;
base = space = kmalloc(size, GFP_KERNEL);
if (!base)
goto failed;
+ sbi->s_csp = (struct ufs_csum *)space;
for (i = 0; i < blks; i += uspi->s_fpb) {
size = uspi->s_bsize;
if (i + uspi->s_fpb > blks)
size = (blks - i) * uspi->s_fsize;
- if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
+ if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
ubh = ubh_bread(sb,
fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_csaddr) + i, size);
- if (!ubh)
- goto failed;
- ubh_ubhcpymem (space, ubh, size);
- sbi->s_csp[ufs_fragstoblks(i)]=(struct ufs_csum *)space;
- }
- else {
+ else
ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
- if (!ubh)
- goto failed;
- ubh_ubhcpymem(space, ubh, size);
- sbi->s_csp[ufs_fragstoblks(i)]=(struct ufs_csum *)space;
- }
+
+ if (!ubh)
+ goto failed;
+
+ ubh_ubhcpymem (space, ubh, size);
+
space += size;
ubh_brelse (ubh);
ubh = NULL;
return 1;
failed:
- if (base) kfree (base);
+ kfree (base);
if (sbi->s_ucg) {
for (i = 0; i < uspi->s_ncg; i++)
- if (sbi->s_ucg[i]) brelse (sbi->s_ucg[i]);
+ if (sbi->s_ucg[i])
+ brelse (sbi->s_ucg[i]);
kfree (sbi->s_ucg);
for (i = 0; i < UFS_MAX_GROUP_LOADED; i++)
- if (sbi->s_ucpi[i]) kfree (sbi->s_ucpi[i]);
+ kfree (sbi->s_ucpi[i]);
}
UFSD(("EXIT (FAILED)\n"))
return 0;
* Put on-disk structures associated with cylinder groups and
* write them back to disk
*/
-void ufs_put_cylinder_structures (struct super_block * sb) {
+static void ufs_put_cylinder_structures (struct super_block *sb)
+{
struct ufs_sb_info * sbi = UFS_SB(sb);
struct ufs_sb_private_info * uspi;
struct ufs_buffer_head * ubh;
size = uspi->s_cssize;
blks = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
- base = space = (char*) sbi->s_csp[0];
+ base = space = (char*) sbi->s_csp;
for (i = 0; i < blks; i += uspi->s_fpb) {
size = uspi->s_bsize;
if (i + uspi->s_fpb > blks)
struct inode *inode;
unsigned block_size, super_block_size;
unsigned flags;
+ unsigned super_block_offset;
uspi = NULL;
ubh = NULL;
if (!silent)
printk("You didn't specify the type of your ufs filesystem\n\n"
"mount -t ufs -o ufstype="
- "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|netxstep-cd|openstep ...\n\n"
+ "sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n"
">>>WARNING<<< Wrong ufstype may corrupt your filesystem, "
"default is ufstype=old\n");
ufs_set_opt (sbi->s_mount_opt, UFSTYPE_OLD);
if (!uspi)
goto failed;
+ super_block_offset=UFS_SBLOCK;
+
/* Keep 2Gig file limit. Some UFS variants need to override
this but as I don't know which I'll let those in the know loosen
the rules */
-
switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) {
case UFS_MOUNT_UFSTYPE_44BSD:
UFSD(("ufstype=44bsd\n"))
flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
break;
case UFS_MOUNT_UFSTYPE_UFS2:
- UFSD(("ufstype=ufs2\n"))
+ UFSD(("ufstype=ufs2\n"));
+ super_block_offset=SBLOCK_UFS2;
uspi->s_fsize = block_size = 512;
uspi->s_fmask = ~(512 - 1);
uspi->s_fshift = 9;
/*
* read ufs super block from device
*/
- if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
- ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + SBLOCK_UFS2/block_size, super_block_size);
- }
- else {
- ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + UFS_SBLOCK/block_size, super_block_size);
- }
+
+ ubh = ubh_bread_uspi(uspi, sb, uspi->s_sbbase + super_block_offset/block_size, super_block_size);
+
if (!ubh)
goto failed;
- usb1 = ubh_get_usb_first(USPI_UBH);
- usb2 = ubh_get_usb_second(USPI_UBH);
- usb3 = ubh_get_usb_third(USPI_UBH);
+ usb1 = ubh_get_usb_first(uspi);
+ usb2 = ubh_get_usb_second(uspi);
+ usb3 = ubh_get_usb_third(uspi);
usb = (struct ufs_super_block *)
((struct ufs_buffer_head *)uspi)->bh[0]->b_data ;
/*
* Check ufs magic number
*/
- switch ((uspi->fs_magic = __constant_le32_to_cpu(usb3->fs_magic))) {
+ sbi->s_bytesex = BYTESEX_LE;
+ switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) {
case UFS_MAGIC:
case UFS2_MAGIC:
case UFS_MAGIC_LFN:
case UFS_MAGIC_FEA:
case UFS_MAGIC_4GB:
- sbi->s_bytesex = BYTESEX_LE;
goto magic_found;
}
- switch ((uspi->fs_magic = __constant_be32_to_cpu(usb3->fs_magic))) {
+ sbi->s_bytesex = BYTESEX_BE;
+ switch ((uspi->fs_magic = fs32_to_cpu(sb, usb3->fs_magic))) {
case UFS_MAGIC:
case UFS2_MAGIC:
case UFS_MAGIC_LFN:
case UFS_MAGIC_FEA:
case UFS_MAGIC_4GB:
- sbi->s_bytesex = BYTESEX_BE;
goto magic_found;
}
dalloc_failed:
iput(inode);
failed:
- if (ubh) ubh_brelse_uspi (uspi);
- if (uspi) kfree (uspi);
- if (sbi) kfree(sbi);
+ if (ubh)
+ ubh_brelse_uspi (uspi);
+ kfree (uspi);
+ kfree(sbi);
sb->s_fs_info = NULL;
UFSD(("EXIT (FAILED)\n"))
return -EINVAL;
return -ENOMEM;
}
-void ufs_write_super (struct super_block * sb) {
+static void ufs_write_super (struct super_block *sb) {
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_super_block_third * usb3;
UFSD(("ENTER\n"))
flags = UFS_SB(sb)->s_flags;
uspi = UFS_SB(sb)->s_uspi;
- usb1 = ubh_get_usb_first(USPI_UBH);
- usb3 = ubh_get_usb_third(USPI_UBH);
+ usb1 = ubh_get_usb_first(uspi);
+ usb3 = ubh_get_usb_third(uspi);
if (!(sb->s_flags & MS_RDONLY)) {
usb1->fs_time = cpu_to_fs32(sb, get_seconds());
unlock_kernel();
}
-void ufs_put_super (struct super_block * sb)
+static void ufs_put_super (struct super_block *sb)
{
struct ufs_sb_info * sbi = UFS_SB(sb);
}
-int ufs_remount (struct super_block * sb, int * mount_flags, char * data)
+static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
{
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
- usb1 = ubh_get_usb_first(USPI_UBH);
- usb3 = ubh_get_usb_third(USPI_UBH);
+ usb1 = ubh_get_usb_first(uspi);
+ usb3 = ubh_get_usb_third(uspi);
/*
* Allow the "check" option to be passed as a remount option.
return 0;
}
-int ufs_statfs (struct super_block * sb, struct kstatfs * buf)
+static int ufs_statfs (struct super_block *sb, struct kstatfs *buf)
{
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
lock_kernel();
uspi = UFS_SB(sb)->s_uspi;
- usb1 = ubh_get_usb_first (USPI_UBH);
+ usb1 = ubh_get_usb_first (uspi);
usb = (struct ufs_super_block *)
((struct ufs_buffer_head *)uspi)->bh[0]->b_data ;
flags = UFS_SB(sb)->s_flags;
if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
buf->f_type = UFS2_MAGIC;
- buf->f_blocks = usb->fs_u11.fs_u2.fs_dsize;
+ buf->f_blocks = fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_dsize);
buf->f_bfree = ufs_blkstofrags(fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_cstotal.cs_nbfree)) +
fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_cstotal.cs_nffree);
buf->f_ffree = fs64_to_cpu(sb,
{
ufs_inode_cachep = kmem_cache_create("ufs_inode_cache",
sizeof(struct ufs_inode_info),
- 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
+ 0, (SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
init_once, NULL);
if (ufs_inode_cachep == NULL)
return -ENOMEM;
printk(KERN_INFO "ufs_inode_cache: not all structures were freed\n");
}
+#ifdef CONFIG_QUOTA
+static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t);
+static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t);
+#endif
+
static struct super_operations ufs_super_ops = {
.alloc_inode = ufs_alloc_inode,
.destroy_inode = ufs_destroy_inode,
.write_super = ufs_write_super,
.statfs = ufs_statfs,
.remount_fs = ufs_remount,
+#ifdef CONFIG_QUOTA
+ .quota_read = ufs_quota_read,
+ .quota_write = ufs_quota_write,
+#endif
};
+#ifdef CONFIG_QUOTA
+
+/* Read data from quotafile - avoid pagecache and such because we cannot afford
+ * acquiring the locks... As quota files are never truncated and quota code
+ * itself serializes the operations (and noone else should touch the files)
+ * we don't have to be afraid of races */
+static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data,
+ size_t len, loff_t off)
+{
+ struct inode *inode = sb_dqopt(sb)->files[type];
+ sector_t blk = off >> sb->s_blocksize_bits;
+ int err = 0;
+ int offset = off & (sb->s_blocksize - 1);
+ int tocopy;
+ size_t toread;
+ struct buffer_head *bh;
+ loff_t i_size = i_size_read(inode);
+
+ if (off > i_size)
+ return 0;
+ if (off+len > i_size)
+ len = i_size-off;
+ toread = len;
+ while (toread > 0) {
+ tocopy = sb->s_blocksize - offset < toread ?
+ sb->s_blocksize - offset : toread;
+
+ bh = ufs_bread(inode, blk, 0, &err);
+ if (err)
+ return err;
+ if (!bh) /* A hole? */
+ memset(data, 0, tocopy);
+ else {
+ memcpy(data, bh->b_data+offset, tocopy);
+ brelse(bh);
+ }
+ offset = 0;
+ toread -= tocopy;
+ data += tocopy;
+ blk++;
+ }
+ return len;
+}
+
+/* Write to quotafile */
+static ssize_t ufs_quota_write(struct super_block *sb, int type,
+ const char *data, size_t len, loff_t off)
+{
+ struct inode *inode = sb_dqopt(sb)->files[type];
+ sector_t blk = off >> sb->s_blocksize_bits;
+ int err = 0;
+ int offset = off & (sb->s_blocksize - 1);
+ int tocopy;
+ size_t towrite = len;
+ struct buffer_head *bh;
+
+ mutex_lock(&inode->i_mutex);
+ while (towrite > 0) {
+ tocopy = sb->s_blocksize - offset < towrite ?
+ sb->s_blocksize - offset : towrite;
+
+ bh = ufs_bread(inode, blk, 1, &err);
+ if (!bh)
+ goto out;
+ lock_buffer(bh);
+ memcpy(bh->b_data+offset, data, tocopy);
+ flush_dcache_page(bh->b_page);
+ set_buffer_uptodate(bh);
+ mark_buffer_dirty(bh);
+ unlock_buffer(bh);
+ brelse(bh);
+ offset = 0;
+ towrite -= tocopy;
+ data += tocopy;
+ blk++;
+ }
+out:
+ if (len == towrite) {
+ mutex_unlock(&inode->i_mutex);
+ return err;
+ }
+ if (inode->i_size < off+len-towrite)
+ i_size_write(inode, off+len-towrite);
+ inode->i_version++;
+ inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
+ mark_inode_dirty(inode);
+ mutex_unlock(&inode->i_mutex);
+ return len - towrite;
+}
+
+#endif
+
static struct super_block *ufs_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
git://git.onelab.eu / linux-2.6.git / blobdiff