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devfs: mmap and munmap, return ENODEV rather than ENOSYS on unimplemented

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Matheus
2023-05-06 17:54:24 -03:00
parent 87313086a4
commit 0ab91b26be
1 changed files with 25 additions and 7 deletions
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kernel-src/fs/devfs.c
+25 -7
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@@ -127,6 +127,22 @@ int devfs_poll(vnode_t *node, int events) {
return devnode->devops->poll(devnode->attr.rdevminor, events); return devnode->devops->poll(devnode->attr.rdevminor, events);
} }
int devfs_mmap(vnode_t *node, void *addr, uintmax_t offset, int flags, cred_t *cred) {
devnode_t *devnode = (devnode_t *)node;
if (devnode->master)
devnode = devnode->master;
return devnode->devops->mmap(devnode->attr.rdevminor, addr, offset, flags);
}
int devfs_munmap(vnode_t *node, void *addr, uintmax_t offset, int flags, cred_t *cred) {
devnode_t *devnode = (devnode_t *)node;
if (devnode->master)
devnode = devnode->master;
return devnode->devops->munmap(devnode->attr.rdevminor, addr, offset, flags);
}
int devfs_access(vnode_t *node, mode_t mode, cred_t *cred) { int devfs_access(vnode_t *node, mode_t mode, cred_t *cred) {
// TODO permission checks // TODO permission checks
return 0; return 0;
@@ -181,8 +197,8 @@ int devfs_create(vnode_t *parent, char *name, vattr_t *attr, int type, vnode_t *
return 0; return 0;
} }
static int devfs_enosys() { static int devfs_enodev() {
return ENOSYS; return ENODEV;
} }
static vfsops_t vfsops = { static vfsops_t vfsops = {
@@ -201,11 +217,13 @@ static vops_t vnops = {
.read = devfs_read, .read = devfs_read,
.write = devfs_write, .write = devfs_write,
.access = devfs_access, .access = devfs_access,
.unlink = devfs_enosys, .unlink = devfs_enodev,
.link = devfs_enosys, .link = devfs_enodev,
.symlink = devfs_enosys, .symlink = devfs_enodev,
.readlink = devfs_enosys, .readlink = devfs_enodev,
.inactive = devfs_enosys .inactive = devfs_enodev,
.mmap = devfs_mmap,
.munmap = devfs_munmap
}; };
static void ctor(scache_t *cache, void *obj) { static void ctor(scache_t *cache, void *obj) {