[PATCH] xfsdump: save & restore 32-bit projids
Eric Sandeen
sandeen at redhat.com
Sun Aug 26 19:20:07 CDT 2012
Current xfsdump/xfsrestore only recognize the lower 16 bits of the projid.
With this patch, the full 32 bits are dumped & restored.
Reported-by: Boris Ranto <branto at redhat.com>
Cc: Arkadiusz Miśkiewicz <arekm at maven.pl>
Signed-off-by: Eric Sandeen <sandeen at redhat.com>
---
This also adds a definition for bs_forkoff, but I don't think
that is something which should get saved & restored, correct?
TBH I've done very little hacking on xfsdump. I think this
requires a new version, but not sure. This seems to work but
may need sanity checks & fixups. And, of course, an xfstest.
Thanks,
-Eric
diff --git a/common/arch_xlate.c b/common/arch_xlate.c
index c156313..e42abd5 100644
--- a/common/arch_xlate.c
+++ b/common/arch_xlate.c
@@ -376,7 +376,8 @@ xlate_bstat(bstat_t *bs1, bstat_t *bs2, int dir)
IXLATE(bs1, bs2, bs_extsize);
IXLATE(bs1, bs2, bs_extents);
IXLATE(bs1, bs2, bs_gen);
- IXLATE(bs1, bs2, bs_projid);
+ IXLATE(bs1, bs2, bs_projid_lo);
+ IXLATE(bs1, bs2, bs_projid_hi);
IXLATE(bs1, bs2, bs_dmevmask);
IXLATE(bs1, bs2, bs_dmstate);
diff --git a/common/content_inode.h b/common/content_inode.h
index a25b66e..8f0390c 100644
--- a/common/content_inode.h
+++ b/common/content_inode.h
@@ -173,8 +173,10 @@ struct bstat { /* bytes accum */
int32_t bs_extsize; /* extent size 4 50 */
int32_t bs_extents; /* number of extents 4 54 */
u_int32_t bs_gen; /* generation count 4 58 */
- u_int16_t bs_projid; /* project id 2 5a */
- char bs_pad[ 14 ]; /* for expansion e 68 */
+ u_int16_t bs_projid_lo; /* low 16 of project id 2 5a */
+ u_int16_t bs_forkoff; /* inode fork offset 2 5c */
+ u_int16_t bs_projid_hi; /* hi 16 of project id 2 5e */
+ char bs_pad[ 10 ]; /* for expansion e 68 */
u_int32_t bs_dmevmask; /* DMI event mask 4 6c */
u_int16_t bs_dmstate; /* DMI state info 2 6e */
char bs_pad1[ 18 ]; /* for expansion 12 80 */
@@ -184,6 +186,18 @@ struct bstat { /* bytes accum */
typedef struct bstat bstat_t;
+/*
+ * Project quota id helpers (previously projid was 16bit only
+ * and using two 16bit values to hold new 32bit projid was choosen
+ * to retain compatibility with "old" filesystems).
+ */
+static inline __uint32_t
+bstat_projid(struct bstat *bs)
+{
+ return (__uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
+}
+
+
/* extended inode flags that can only be set after all data
* has been restored to a file.
*/
diff --git a/common/global.c b/common/global.c
index 8e49d8b..1793ff4 100644
--- a/common/global.c
+++ b/common/global.c
@@ -281,6 +281,7 @@ global_version_check( u_int32_t version )
case GLOBAL_HDR_VERSION_1:
case GLOBAL_HDR_VERSION_2:
case GLOBAL_HDR_VERSION_3:
+ case GLOBAL_HDR_VERSION_4:
return BOOL_TRUE;
default:
return BOOL_FALSE;
diff --git a/common/global.h b/common/global.h
index 6556a68..5138ed8 100644
--- a/common/global.h
+++ b/common/global.h
@@ -28,13 +28,15 @@
#define GLOBAL_HDR_VERSION_1 1
#define GLOBAL_HDR_VERSION_2 2
#define GLOBAL_HDR_VERSION_3 3
- /* version 3 uses the full 32-bit inode generation number in direnthdr_t.
+#define GLOBAL_HDR_VERSION_4 4
+ /* version 4 adds 32-bit projid (projid_hi)
+ * version 3 uses the full 32-bit inode generation number in direnthdr_t.
* version 2 adds encoding of holes and a change to on-tape inventory format.
* version 1 adds extended file attribute dumping.
* version 0 xfsrestore can't handle media produced
* by version 1 xfsdump.
*/
-#define GLOBAL_HDR_VERSION GLOBAL_HDR_VERSION_3
+#define GLOBAL_HDR_VERSION GLOBAL_HDR_VERSION_4
#define GLOBAL_HDR_STRING_SZ 0x100
#define GLOBAL_HDR_TIME_SZ 4
diff --git a/dump/content.c b/dump/content.c
index 481297a..ec5e954 100644
--- a/dump/content.c
+++ b/dump/content.c
@@ -4927,7 +4927,8 @@ copy_xfs_bstat(bstat_t *dst, xfs_bstat_t *src)
dst->bs_extsize = src->bs_extsize;
dst->bs_extents = src->bs_extents;
dst->bs_gen = src->bs_gen;
- dst->bs_projid = src->bs_projid;
+ dst->bs_projid_lo = src->bs_projid_lo;
+ dst->bs_projid_hi = src->bs_projid_hi;
dst->bs_dmevmask = src->bs_dmevmask;
dst->bs_dmstate = src->bs_dmstate;
}
diff --git a/restore/content.c b/restore/content.c
index 3110cdf..edd00ed 100644
--- a/restore/content.c
+++ b/restore/content.c
@@ -7451,7 +7451,7 @@ restore_reg( drive_t *drivep,
memset((void *)&fsxattr, 0, sizeof( fsxattr ));
fsxattr.fsx_xflags = bstatp->bs_xflags & ~POST_DATA_XFLAGS;
fsxattr.fsx_extsize = (u_int32_t) bstatp->bs_extsize;
- fsxattr.fsx_projid = bstatp->bs_projid;
+ fsxattr.fsx_projid = bstat_projid(bstatp);
rval = ioctl( *fdp, XFS_IOC_FSSETXATTR, (void *)&fsxattr);
if ( rval < 0 ) {
@@ -7702,7 +7702,7 @@ restore_complete_reg(stream_context_t *strcxtp)
memset((void *)&fsxattr, 0, sizeof( fsxattr ));
fsxattr.fsx_xflags = bstatp->bs_xflags;
fsxattr.fsx_extsize = (u_int32_t)bstatp->bs_extsize;
- fsxattr.fsx_projid = bstatp->bs_projid;
+ fsxattr.fsx_projid = bstat_projid(bstatp);
rval = ioctl( fd, XFS_IOC_FSSETXATTR, (void *)&fsxattr );
if ( rval < 0 ) {
diff --git a/restore/dirattr.c b/restore/dirattr.c
index 68d1b49..8a1fb06 100644
--- a/restore/dirattr.c
+++ b/restore/dirattr.c
@@ -434,7 +434,7 @@ dirattr_add( filehdr_t *fhdrp )
dirattr.d_ctime = ( time32_t )fhdrp->fh_stat.bs_ctime.tv_sec;
dirattr.d_xflags = fhdrp->fh_stat.bs_xflags;
dirattr.d_extsize = ( u_int32_t )fhdrp->fh_stat.bs_extsize;
- dirattr.d_projid = fhdrp->fh_stat.bs_projid;
+ dirattr.d_projid = bstat_projid(&(fhdrp->fh_stat));
dirattr.d_dmevmask = fhdrp->fh_stat.bs_dmevmask;
dirattr.d_dmstate = ( u_int32_t )fhdrp->fh_stat.bs_dmstate;
#ifdef DIRATTRCHK
@@ -812,7 +812,7 @@ dirattr_update( dah_t dah, filehdr_t *fhdrp )
dirattr.d_ctime = ( time32_t )fhdrp->fh_stat.bs_ctime.tv_sec;
dirattr.d_xflags = fhdrp->fh_stat.bs_xflags;
dirattr.d_extsize = ( u_int32_t )fhdrp->fh_stat.bs_extsize;
- dirattr.d_projid = fhdrp->fh_stat.bs_projid;
+ dirattr.d_projid = bstat_projid(&(fhdrp->fh_stat));
dirattr.d_dmevmask = fhdrp->fh_stat.bs_dmevmask;
dirattr.d_dmstate = ( u_int32_t )fhdrp->fh_stat.bs_dmstate;
dirattr.d_extattroff = DIRATTR_EXTATTROFFNULL;
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