Messages in this thread | | | Subject | Re: [PATCH 11/20] fs/jfs: return f_fsid for statfs(2), v3 | From | Dave Kleikamp <> | Date | Tue, 27 Jan 2009 10:06:29 -0600 |
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On Tue, 2009-01-27 at 07:26 -0600, Dave Kleikamp wrote: > Andrew, > Please take this version of the jfs patch, rather than the one you > currently have in the -mm tree (fs-jfs-return-f_fsid-for-statfs2.patch).
... or would you rather I handle it though the jfs tree and you drop it?
Shaggy
> On Wed, 2009-01-21 at 00:05 +0800, Coly Li wrote: > > This patch makes jfs return f_fsid info for statfs(2). By Andreas' suggestion, this patch populates > > a persistent f_fsid between boots/mounts with help of on-disk uuid record. > > > > Signed-off-by: Coly Li <coly.li@suse.de> > > Acked-By: Dave Kleikamp <shaggy@austin.ibm.com> > > --- > > fs/jfs/super.c | 6 +++++- > > 1 files changed, 5 insertions(+), 1 deletions(-) > > > > diff --git a/fs/jfs/super.c b/fs/jfs/super.c > > index b37d1f7..6ce1aac 100644 > > --- a/fs/jfs/super.c > > +++ b/fs/jfs/super.c > > @@ -29,6 +29,7 @@ > > #include <linux/posix_acl.h> > > #include <linux/buffer_head.h> > > #include <linux/exportfs.h> > > +#include <linux/crc32.h> > > #include <asm/uaccess.h> > > #include <linux/seq_file.h> > > > > @@ -168,7 +169,10 @@ static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf) > > buf->f_files = maxinodes; > > buf->f_ffree = maxinodes - (atomic_read(&imap->im_numinos) - > > atomic_read(&imap->im_numfree)); > > - > > + buf->f_fsid.val[0] = (u32)crc32_le(0, sbi->uuid, sizeof(sbi->uuid)/2); > > + buf->f_fsid.val[1] = (u32)crc32_le(0, sbi->uuid + sizeof(sbi->uuid)/2, > > + sizeof(sbi->uuid)/2); > > + > > buf->f_namelen = JFS_NAME_MAX; > > return 0; > > } > > -- David Kleikamp IBM Linux Technology Center
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