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ceph: fix 32-bit ino numbers

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Fix 32-bit ino generation to not always be 1.

Signed-off-by: Amon Ott <a.ott@m-privacy.de>
This commit is contained in:
Amon Ott 2011-10-20 13:04:07 -07:00 committed by Sage Weil
parent 38d6453ca3
commit 3310f7541f
1 changed files with 6 additions and 5 deletions
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11
fs/ceph/super.h
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@ -346,9 +346,10 @@ static inline struct ceph_vino ceph_vino(struct inode *inode)
* x86_64+ino32 64 32
* x86_64 64 64
*/
static inline u32 ceph_ino_to_ino32(ino_t ino)
static inline u32 ceph_ino_to_ino32(__u64 vino)
{
ino ^= ino >> (sizeof(ino) * 8 - 32);
u32 ino = vino & 0xffffffff;
ino ^= vino >> 32;
if (!ino)
ino = 1;
return ino;
@ -359,11 +360,11 @@ static inline u32 ceph_ino_to_ino32(ino_t ino)
*/
static inline ino_t ceph_vino_to_ino(struct ceph_vino vino)
{
ino_t ino = (ino_t)vino.ino; /* ^ (vino.snap << 20); */
#if BITS_PER_LONG == 32
ino = ceph_ino_to_ino32(ino);
return ceph_ino_to_ino32(vino.ino);
#else
return (ino_t)vino.ino;
#endif
return ino;
}
/*