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fs: more fixes

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Matheus
2025-10-23 17:42:29 -03:00
parent 6577953d53
commit 9a8c5535ad
2 changed files with 16 additions and 13 deletions
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kernel-src/fs/vfs.c
+11 -11
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@@ -334,18 +334,13 @@ int vfs_create(vnode_t *ref, char *path, vattr_t *attr, int type, vnode_t **node
err = VOP_ACCESS(parent, V_ACCESS_WRITE, getcred());
if (err) {
VOP_UNLOCK(parent);
VOP_RELEASE(parent);
goto cleanup_parent;
}
vnode_t *ret;
err = VOP_CREATE(parent, component, attr, type, &ret, getcred());
VOP_RELEASE(parent);
if (err) {
VOP_UNLOCK(parent);
goto cleanup;
}
if (err)
goto cleanup_parent;
if (node) {
*node = ret;
@@ -356,6 +351,7 @@ int vfs_create(vnode_t *ref, char *path, vattr_t *attr, int type, vnode_t **node
}
cleanup_parent:
VOP_RELEASE(parent);
VOP_UNLOCK(parent);
cleanup:
free(component);
@@ -701,7 +697,12 @@ int vfs_unlink(vnode_t *ref, char *path) {
if (err)
goto cleanup;
bool isdotdot = strcmp(path, "..") == 0;
if (strcmp(component, "..") == 0 || strcmp(component, ".") == 0) {
VOP_UNLOCK(parent);
VOP_RELEASE(parent);
err = EBUSY;
goto cleanup;
}
vnode_t *child = NULL;
err = VOP_LOOKUP(parent, component, &child, getcred());
@@ -716,12 +717,11 @@ int vfs_unlink(vnode_t *ref, char *path) {
goto cleanup_release;
err = VOP_UNLINK(parent, child, component, getcred());
cleanup_release:
// locked by VOP_LOOKUP
VOP_UNLOCK(child);
// locked by vfs_lookup, unlocked by VOP_LOOKUP if component is ".."
if (!isdotdot)
VOP_UNLOCK(parent);
VOP_UNLOCK(parent);
VOP_RELEASE(child);
VOP_RELEASE(parent);