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authorAmon Ott <a.ott@m-privacy.de>2011-10-20 16:04:07 -0400
committerSage Weil <sage@newdream.net>2011-10-25 19:10:17 -0400
commit3310f7541f0c991b51324a7712db51fb8f912601 (patch)
treed9a003be8ae51c41facdb80125e853b7f143e5e6 /fs/ceph/super.h
parent38d6453ca39ecce442628a93e1bb46d70d547512 (diff)
ceph: fix 32-bit ino numbers
Fix 32-bit ino generation to not always be 1. Signed-off-by: Amon Ott <a.ott@m-privacy.de>
Diffstat (limited to 'fs/ceph/super.h')
-rw-r--r--fs/ceph/super.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 5c72430b8f71..b01442aaf278 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -346,9 +346,10 @@ static inline struct ceph_vino ceph_vino(struct inode *inode)
346 * x86_64+ino32 64 32 346 * x86_64+ino32 64 32
347 * x86_64 64 64 347 * x86_64 64 64
348 */ 348 */
349static inline u32 ceph_ino_to_ino32(ino_t ino) 349static inline u32 ceph_ino_to_ino32(__u64 vino)
350{ 350{
351 ino ^= ino >> (sizeof(ino) * 8 - 32); 351 u32 ino = vino & 0xffffffff;
352 ino ^= vino >> 32;
352 if (!ino) 353 if (!ino)
353 ino = 1; 354 ino = 1;
354 return ino; 355 return ino;
@@ -359,11 +360,11 @@ static inline u32 ceph_ino_to_ino32(ino_t ino)
359 */ 360 */
360static inline ino_t ceph_vino_to_ino(struct ceph_vino vino) 361static inline ino_t ceph_vino_to_ino(struct ceph_vino vino)
361{ 362{
362 ino_t ino = (ino_t)vino.ino; /* ^ (vino.snap << 20); */
363#if BITS_PER_LONG == 32 363#if BITS_PER_LONG == 32
364 ino = ceph_ino_to_ino32(ino); 364 return ceph_ino_to_ino32(vino.ino);
365#else
366 return (ino_t)vino.ino;
365#endif 367#endif
366 return ino;
367} 368}
368 369
369/* 370/*