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vfs: redo locking

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Matheus
2024-08-26 21:47:23 -03:00
parent da150523ba
commit 42bda0bf92
32 changed files with 271 additions and 169 deletions
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kernel-src/sys/syscalls/utime.c
+8 -2
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@@ -32,6 +32,7 @@ syscallret_t syscall_utimensat(context_t *, int fd, char *upath, timespec_t uts[
}
node = file->vnode;
VOP_LOCK(node);
VOP_HOLD(node);
fd_release(file);
} else {
@@ -62,8 +63,10 @@ syscallret_t syscall_utimensat(context_t *, int fd, char *upath, timespec_t uts[
vattr_t attr;
ret.errno = VOP_GETATTR(node, &attr, &_cpu()->thread->proc->cred);
if (ret.errno)
if (ret.errno) {
VOP_UNLOCK(node);
goto cleanup;
}
attr.atime = ts[0];
attr.mtime = ts[1];
@@ -73,12 +76,15 @@ syscallret_t syscall_utimensat(context_t *, int fd, char *upath, timespec_t uts[
if (uts == NULL)
ret.errno = VOP_ACCESS(node, V_ACCESS_WRITE, &_cpu()->thread->proc->cred);
if (ret.errno)
if (ret.errno) {
VOP_UNLOCK(node);
goto cleanup;
}
}
ret.errno = VOP_SETATTR(node, &attr, V_ATTR_ATIME | V_ATTR_MTIME, &_cpu()->thread->proc->cred);
ret.ret = ret.errno ? -1 : 0;
VOP_UNLOCK(node);
cleanup:
if (node)