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hfsplus: 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 10:05:12 +02:00 committed by Al Viro
parent 58bc5bbb87
commit 7fbc6df0e7
1 changed files with 11 additions and 5 deletions
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16
fs/hfsplus/super.c
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@ -152,7 +152,7 @@ static void hfsplus_clear_inode(struct inode *inode)
} }
} }
static void hfsplus_write_super(struct super_block *sb) static int hfsplus_sync_fs(struct super_block *sb, int wait)
{ {
struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr; struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
@ -160,9 +160,6 @@ static void hfsplus_write_super(struct super_block *sb)
lock_super(sb); lock_super(sb);
sb->s_dirt = 0; sb->s_dirt = 0;
if (sb->s_flags & MS_RDONLY)
/* warn? */
goto out;
vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks); vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks);
vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc); vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc);
@ -194,8 +191,16 @@ static void hfsplus_write_super(struct super_block *sb)
} }
HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP; HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP;
} }
out:
unlock_super(sb); unlock_super(sb);
return 0;
}
static void hfsplus_write_super(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
hfsplus_sync_fs(sb, 1);
else
sb->s_dirt = 0;
} }
static void hfsplus_put_super(struct super_block *sb) static void hfsplus_put_super(struct super_block *sb)
@ -290,6 +295,7 @@ static const struct super_operations hfsplus_sops = {
.clear_inode = hfsplus_clear_inode, .clear_inode = hfsplus_clear_inode,
.put_super = hfsplus_put_super, .put_super = hfsplus_put_super,
.write_super = hfsplus_write_super, .write_super = hfsplus_write_super,
.sync_fs = hfsplus_sync_fs,
.statfs = hfsplus_statfs, .statfs = hfsplus_statfs,
.remount_fs = hfsplus_remount, .remount_fs = hfsplus_remount,
.show_options = hfsplus_show_options, .show_options = hfsplus_show_options,