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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/renameat.c
+6 -1
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@@ -60,16 +60,21 @@ syscallret_t syscall_renameat(context_t *context, int olddirfd, char *uoldpath,
if (oldcomponent == NULL && newcomponent == NULL)
goto cleanup;
// TODO possibly deadlocks
ret.errno = vfs_lookup(&sourcedirnode, olddirnode, oldpath, oldcomponent, VFS_LOOKUP_NOLINK | VFS_LOOKUP_PARENT);
if (ret.errno)
goto cleanup;
ret.errno = vfs_lookup(&targetdirnode, newdirnode, newpath, newcomponent, VFS_LOOKUP_NOLINK | VFS_LOOKUP_PARENT);
if (ret.errno)
if (ret.errno) {
VOP_UNLOCK(sourcedirnode);
goto cleanup;
}
ret.errno = VOP_RENAME(sourcedirnode, oldcomponent, targetdirnode, newcomponent, flags);
ret.ret = ret.errno ? -1 : 0;
VOP_UNLOCK(targetdirnode);
VOP_UNLOCK(sourcedirnode);
cleanup: