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authorMaksym Planeta <mcsim.planeta@gmail.com>2012-04-08 13:37:05 +0300
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2012-04-08 22:23:36 +0200
commit7e15f3d69a83a34ac62cbbee944a0bfbfa92724e (patch)
tree0de07d35113d536978d4d4408c0e7e51b0057af5 /tmpfs/dir.c
parentd43f1c20f6608ab5a6352a181308309c33b81c5b (diff)
Update '..' link for directory when moving it.
* tmpfs/dir.c (struct dirstat): New field. (diskfs_lookup_hard): Record whether type is SPEC_DOTDOT in dotdot field of ds. (diskfs_dirrewrite_hard): If ds->dotdot is true, set dp->dn->u.dir.dotdot insteead of (ds->prevp)->dn.
Diffstat (limited to 'tmpfs/dir.c')
-rw-r--r--tmpfs/dir.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/tmpfs/dir.c b/tmpfs/dir.c
index 4a0a60b5..c0ae9785 100644
--- a/tmpfs/dir.c
+++ b/tmpfs/dir.c
@@ -150,6 +150,7 @@ diskfs_get_directs (struct node *dp, int entry, int n,
struct dirstat
{
struct tmpfs_dirent **prevp;
+ int dotdot;
};
const size_t diskfs_dirstat_size = sizeof (struct dirstat);
@@ -178,6 +179,9 @@ diskfs_lookup_hard (struct node *dp,
if (type == REMOVE || type == RENAME)
assert (np);
+ if (ds)
+ ds->dotdot = type & SPEC_DOTDOT;
+
if (namelen == 1 && name[0] == '.')
{
if (np != 0)
@@ -279,7 +283,11 @@ error_t
diskfs_dirrewrite_hard (struct node *dp, struct node *np,
struct dirstat *ds)
{
- (*ds->prevp)->dn = np->dn;
+ if (ds->dotdot)
+ dp->dn->u.dir.dotdot = np->dn;
+ else
+ (*ds->prevp)->dn = np->dn;
+
return 0;
}