AcoSail/kernel_optimize_test
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ufs: add ->sync_fs

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Add a ->sync_fs method for data integrity syncs, and reimplement
->write_super ontop of it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2009-06-08 10:08:05 +02:00 committed by Al Viro
parent ad43ffdeea
commit 8c8006564a
1 changed files with 22 additions and 10 deletions
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32
fs/ufs/super.c
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@ -1125,7 +1125,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
}
static void ufs_write_super(struct super_block *sb)
static int ufs_sync_fs(struct super_block *sb, int wait)
{
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
@ -1134,25 +1134,36 @@ static void ufs_write_super(struct super_block *sb)
lock_super(sb);
lock_kernel();
UFSD("ENTER\n");
flags = UFS_SB(sb)->s_flags;
uspi = UFS_SB(sb)->s_uspi;
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());
if ((flags & UFS_ST_MASK) == UFS_ST_SUN
|| (flags & UFS_ST_MASK) == UFS_ST_SUNOS
|| (flags & UFS_ST_MASK) == UFS_ST_SUNx86)
ufs_set_fs_state(sb, usb1, usb3,
UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
ufs_put_cstotal(sb);
}
usb1->fs_time = cpu_to_fs32(sb, get_seconds());
if ((flags & UFS_ST_MASK) == UFS_ST_SUN ||
(flags & UFS_ST_MASK) == UFS_ST_SUNOS ||
(flags & UFS_ST_MASK) == UFS_ST_SUNx86)
ufs_set_fs_state(sb, usb1, usb3,
UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
ufs_put_cstotal(sb);
sb->s_dirt = 0;
UFSD("EXIT\n");
unlock_kernel();
unlock_super(sb);
return 0;
}
static void ufs_write_super(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
ufs_sync_fs(sb, 1);
else
sb->s_dirt = 0;
}
static void ufs_put_super(struct super_block *sb)
@ -1381,6 +1392,7 @@ static const struct super_operations ufs_super_ops = {
.delete_inode = ufs_delete_inode,
.put_super = ufs_put_super,
.write_super = ufs_write_super,
.sync_fs = ufs_sync_fs,
.statfs = ufs_statfs,
.remount_fs = ufs_remount,
.show_options = ufs_show_options,