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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/execve.c
+7 -3
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@@ -178,8 +178,10 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
goto error;
ret.errno = VOP_ACCESS(node, V_ACCESS_EXECUTE, &_cpu()->thread->proc->cred);
if (ret.errno)
VOP_UNLOCK(node);
if (ret.errno) {
goto error;
}
size_t readcount;
ret.errno = vfs_read(node, shebang, SHEBANG_SIZE - 1, 0, &readcount, 0);
@@ -229,8 +231,6 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
goto error;
}
// TODO permission and type checks and all
vmm_switchcontext(vmmctx);
auxv64list_t auxv64;
@@ -246,6 +246,8 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
if (ret.errno)
goto error;
VOP_UNLOCK(interpnode);
auxv64list_t interpauxv;
char *interpinterp = NULL;
ret.errno = elf_load(interpnode, INTERP_BASE, &entry, &interpinterp, &interpauxv);
@@ -263,7 +265,9 @@ static syscallret_t execve(context_t *context, char *upath, char *uargv[], char
}
vattr_t vattr;
VOP_LOCK(node);
ret.errno = VOP_GETATTR(node, &vattr, NULL);
VOP_UNLOCK(node);
if (ret.errno)
goto error;