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authorShehjar Tikoo <shehjart@gluster.com>2010-09-14 02:39:11 +0000
committerVijay Bellur <vijay@dev.gluster.com>2010-09-14 02:32:03 -0700
commit9ff89d858075d8f916c76a9ade84b9844da4d23e (patch)
tree535ea0f8456078a74eeeb920edc646cf58c9beee /xlators/nfs/server/src/nfs3-fh.c
parent2152dae595438b919fbcb7349d15ead139e120d8 (diff)
nfs,nfs3,mnt3: Transition fh resolution to gfid
Signed-off-by: Shehjar Tikoo <shehjart@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
Diffstat (limited to 'xlators/nfs/server/src/nfs3-fh.c')
-rw-r--r--xlators/nfs/server/src/nfs3-fh.c83
1 files changed, 45 insertions, 38 deletions
diff --git a/xlators/nfs/server/src/nfs3-fh.c b/xlators/nfs/server/src/nfs3-fh.c
index 7a7a06da058..10c00ba3287 100644
--- a/xlators/nfs/server/src/nfs3-fh.c
+++ b/xlators/nfs/server/src/nfs3-fh.c
@@ -49,15 +49,6 @@ nfs3_fh_validate (struct nfs3_fh *fh)
}
-xlator_t *
-nfs3_fh_to_xlator (xlator_list_t *cl, struct nfs3_fh *fh)
-{
- if ((!cl) || (!fh))
- return NULL;
-
- return nfs_xlid_to_xlator (cl, fh->xlatorid);
-}
-
void
nfs3_fh_init (struct nfs3_fh *fh, struct iatt *buf)
{
@@ -68,24 +59,35 @@ nfs3_fh_init (struct nfs3_fh *fh, struct iatt *buf)
fh->ident[1] = GF_NFSFH_IDENT1;
fh->hashcount = 0;
- fh->gen = buf->ia_gen;
- fh->ino = buf->ia_ino;
-
+ uuid_copy (fh->gfid, buf->ia_gfid);
}
struct nfs3_fh
-nfs3_fh_build_root_fh (xlator_list_t *cl, xlator_t *xl)
+nfs3_fh_build_indexed_root_fh (xlator_list_t *cl, xlator_t *xl)
{
struct nfs3_fh fh = {{0}, };
struct iatt buf = {0, };
if ((!cl) || (!xl))
return fh;
+ buf.ia_gfid[15] = 1;
nfs3_fh_init (&fh, &buf);
- fh.xlatorid = nfs_xlator_to_xlid (cl, xl);
- fh.ino = 1;
- fh.gen = 0;
+ fh.exportid [15] = nfs_xlator_to_xlid (cl, xl);
+
+ return fh;
+}
+
+
+struct nfs3_fh
+nfs3_fh_build_uuid_root_fh (uuid_t volumeid)
+{
+ struct nfs3_fh fh = {{0}, };
+ struct iatt buf = {0, };
+
+ nfs3_fh_init (&fh, &buf);
+ uuid_copy (fh.exportid, volumeid);
+
return fh;
}
@@ -93,10 +95,13 @@ nfs3_fh_build_root_fh (xlator_list_t *cl, xlator_t *xl)
int
nfs3_fh_is_root_fh (struct nfs3_fh *fh)
{
+ uuid_t rootgfid = {0, 1};
+
if (!fh)
return 0;
- if (fh->hashcount == 0)
+ rootgfid[15] = 1;
+ if (uuid_compare (fh->gfid, rootgfid) == 0)
return 1;
return 0;
@@ -104,10 +109,12 @@ nfs3_fh_is_root_fh (struct nfs3_fh *fh)
nfs3_hash_entry_t
-nfs3_fh_hash_entry (ino_t ino, uint64_t gen)
+nfs3_fh_hash_entry (uuid_t gfid)
{
nfs3_hash_entry_t hash = 0;
int shiftsize = 48;
+ uint64_t ino = 0;
+ uint64_t gen = 0;
nfs3_hash_entry_t inomsb = 0;
nfs3_hash_entry_t inolsb = 0;
nfs3_hash_entry_t inols23b = 0;
@@ -116,6 +123,7 @@ nfs3_fh_hash_entry (ino_t ino, uint64_t gen)
nfs3_hash_entry_t genlsb = 0;
nfs3_hash_entry_t genls23b = 0;
+ memcpy (&ino, &gfid[8], 8);
hash = ino;
while (shiftsize != 0) {
hash ^= (ino >> shiftsize);
@@ -139,6 +147,7 @@ nfs3_fh_hash_entry (ino_t ino, uint64_t gen)
inols23b = (inols23b << 8);
// gf_log ("FILEHDNALE", GF_LOG_TRACE, "inols23b %d", inols23b);
+ memcpy (&gen, &gfid[0], 8);
genmsb = (gen >> 56);
// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inomsb %d", inomsb);
@@ -163,11 +172,16 @@ nfs3_fh_hash_entry (ino_t ino, uint64_t gen)
void
nfs3_fh_to_str (struct nfs3_fh *fh, char *str)
{
+ char gfid[512];
+ char exportid[512];
+
if ((!fh) || (!str))
return;
- sprintf (str, "FH: hashcount %d, xlid %d, gen %"PRIu64", ino %"PRIu64,
- fh->hashcount, fh->xlatorid, fh->gen, fh->ino);
+ uuid_unparse (fh->gfid, gfid);
+ uuid_unparse (fh->exportid, exportid);
+ sprintf (str, "FH: hashcount %d, exportid %s, gfid %s",
+ fh->hashcount, exportid, gfid);
}
@@ -175,12 +189,16 @@ void
nfs3_log_fh (struct nfs3_fh *fh)
{
// int x = 0;
+ char gfidstr[512];
+ char exportidstr[512];
+
if (!fh)
return;
- gf_log ("nfs3-fh", GF_LOG_TRACE, "filehandle: hashcount %d, xlid %d, "
- "gen %"PRIu64", ino %"PRIu64, fh->hashcount, fh->xlatorid,
- fh->gen, fh->ino);
+ uuid_unparse (fh->gfid, gfidstr);
+ uuid_unparse (fh->exportid, exportidstr);
+ gf_log ("nfs3-fh", GF_LOG_TRACE, "filehandle: hashcount %d, exportid %d"
+ ", gfid 0x%s", fh->hashcount, exportidstr, gfidstr);
/*
for (; x < fh->hashcount; ++x)
gf_log ("FILEHANDLE", GF_LOG_TRACE, "Hash %d: %d", x,
@@ -197,12 +215,9 @@ nfs3_fh_build_parent_fh (struct nfs3_fh *child, struct iatt *newstat,
return -1;
nfs3_fh_init (newfh, newstat);
- newfh->xlatorid = child->xlatorid;
- if ((newstat->ia_ino == 1) && (newstat->ia_gen == 0)) {
- newfh->ino = 1;
- newfh->gen = 0;
+ uuid_copy (newfh->exportid, child->exportid);
+ if (newstat->ia_ino == 1)
goto done;
- }
newfh->hashcount = child->hashcount - 1;
memcpy (newfh->entryhash, child->entryhash,
@@ -215,7 +230,6 @@ done:
}
-
int
nfs3_fh_build_child_fh (struct nfs3_fh *parent, struct iatt *newstat,
struct nfs3_fh *newfh)
@@ -227,12 +241,7 @@ nfs3_fh_build_child_fh (struct nfs3_fh *parent, struct iatt *newstat,
return -1;
nfs3_fh_init (newfh, newstat);
- newfh->xlatorid = parent->xlatorid;
- if ((newstat->ia_ino == 1) && (newstat->ia_gen == 0)) {
- newfh->ino = 1;
- newfh->gen = 0;
- goto done;
- }
+ uuid_copy (newfh->exportid, parent->exportid);
newfh->hashcount = parent->hashcount + 1;
/* Only copy the hashes that are available in the parent file
@@ -249,11 +258,9 @@ nfs3_fh_build_child_fh (struct nfs3_fh *parent, struct iatt *newstat,
* array of the child entry. */
if (newfh->hashcount <= GF_NFSFH_MAXHASHES) {
entry = newfh->hashcount - 1;
- newfh->entryhash[entry] = nfs3_fh_hash_entry (parent->ino,
- parent->gen);
+ newfh->entryhash[entry] = nfs3_fh_hash_entry (parent->gfid);
}
-done:
// nfs3_log_fh (newfh);
return 0;