The patch titled
fs/jfs: return f_fsid for statfs(2), v3
has been added to the -mm tree. Its filename is
fs-jfs-return-f_fsid-for-statfs2-v3.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: fs/jfs: return f_fsid for statfs(2), v3
From: Coly Li <coly.li@xxxxxxx>
Make 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@xxxxxxx>
Acked-by: Dave Kleikamp <shaggy@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/jfs/super.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff -puN fs/jfs/super.c~fs-jfs-return-f_fsid-for-statfs2-v3 fs/jfs/super.c
--- a/fs/jfs/super.c~fs-jfs-return-f_fsid-for-statfs2-v3
+++ a/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>
@@ -143,10 +144,8 @@ static void jfs_destroy_inode(struct ino
static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
- struct super_block *sb = dentry->d_sb;
- struct jfs_sb_info *sbi = JFS_SBI(sb);
+ struct jfs_sb_info *sbi = JFS_SBI(dentry->d_sb);
s64 maxinodes;
- u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
struct inomap *imap = JFS_IP(sbi->ipimap)->i_imap;
jfs_info("In jfs_statfs");
@@ -170,8 +169,9 @@ static int jfs_statfs(struct dentry *den
buf->f_files = maxinodes;
buf->f_ffree = maxinodes - (atomic_read(&imap->im_numinos) -
atomic_read(&imap->im_numfree));
- buf->f_fsid.val[0] = (u32)id;
- buf->f_fsid.val[1] = (u32)(id >> 32);
+ 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;
_
Patches currently in -mm which might be from coly.li@xxxxxxx are
fs-adfs-return-f_fsid-for-statfs2.patch
fs-affs-return-f_fsid-for-statfs2.patch
fs-befs-return-f_fsid-for-statfs2.patch
fs-cramfs-return-f_fsid-for-statfs2.patch
fs-efs-return-f_fsid-for-statfs2.patch
fs-fat-return-f_fsid-for-statfs2.patch
fs-hfs-return-f_fsid-for-statfs2.patch
fs-hfsplus-return-f_fsid-for-statfs2.patch
fs-hpfs-return-f_fsid-for-statfs2.patch
fs-isofs-return-f_fsid-for-statfs2.patch
fs-jfs-return-f_fsid-for-statfs2.patch
fs-jfs-return-f_fsid-for-statfs2-v3.patch
fs-minix-return-f_fsid-for-statfs2.patch
fs-omfs-return-f_fsid-for-statfs2.patch
fs-qnx4-return-f_fsid-for-statfs2.patch
fs-reiserfs-return-f_fsid-for-statfs2.patch
fs-reiserfs-return-f_fsid-for-statfs2-v2.patch
fs-romfs-return-f_fsid-for-statfs2.patch
fs-squashfs-return-f_fsid-for-statfs2.patch
fs-sysv-return-f_fsid-for-statfs2.patch
fs-udf-return-f_fsid-for-statfs2.patch
fs-ufs-return-f_fsid-for-statfs2.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
