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-rw-r--r--fs/debugfs/inode.c21
-rw-r--r--fs/debugfs/internal.h13
-rw-r--r--fs/kernfs/dir.c5
-rw-r--r--fs/kernfs/mount.c1
-rw-r--r--fs/nfs/localio.c48
-rw-r--r--fs/sysfs/group.c10
6 files changed, 41 insertions, 57 deletions
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 5f15f855b4b9..4b263c328ed2 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -35,7 +35,7 @@
static struct vfsmount *debugfs_mount;
static int debugfs_mount_count;
static bool debugfs_registered;
-static unsigned int debugfs_allow __ro_after_init = DEFAULT_DEBUGFS_ALLOW_BITS;
+static bool debugfs_enabled __ro_after_init = IS_ENABLED(CONFIG_DEBUG_FS_ALLOW_ALL);
/*
* Don't allow access attributes to be changed whilst the kernel is locked down
@@ -287,9 +287,6 @@ static int debugfs_get_tree(struct fs_context *fc)
{
int err;
- if (!(debugfs_allow & DEBUGFS_ALLOW_API))
- return -EPERM;
-
err = get_tree_single(fc, debugfs_fill_super);
if (err)
return err;
@@ -368,7 +365,7 @@ static struct dentry *debugfs_start_creating(const char *name,
struct dentry *dentry;
int error;
- if (!(debugfs_allow & DEBUGFS_ALLOW_API))
+ if (!debugfs_enabled)
return ERR_PTR(-EPERM);
if (!debugfs_initialized())
@@ -883,21 +880,25 @@ static int __init debugfs_kernel(char *str)
{
if (str) {
if (!strcmp(str, "on"))
- debugfs_allow = DEBUGFS_ALLOW_API | DEBUGFS_ALLOW_MOUNT;
- else if (!strcmp(str, "no-mount"))
- debugfs_allow = DEBUGFS_ALLOW_API;
+ debugfs_enabled = true;
else if (!strcmp(str, "off"))
- debugfs_allow = 0;
+ debugfs_enabled = false;
+ else if (!strcmp(str, "no-mount")) {
+ pr_notice("debugfs=no-mount is a deprecated alias "
+ "for debugfs=off\n");
+ debugfs_enabled = false;
+ }
}
return 0;
}
early_param("debugfs", debugfs_kernel);
+
static int __init debugfs_init(void)
{
int retval;
- if (!(debugfs_allow & DEBUGFS_ALLOW_MOUNT))
+ if (!debugfs_enabled)
return -EPERM;
retval = sysfs_create_mount_point(kernel_kobj, "debug");
diff --git a/fs/debugfs/internal.h b/fs/debugfs/internal.h
index 427987f81571..c95699b27a56 100644
--- a/fs/debugfs/internal.h
+++ b/fs/debugfs/internal.h
@@ -55,17 +55,4 @@ enum {
HAS_IOCTL = 16
};
-#define DEBUGFS_ALLOW_API BIT(0)
-#define DEBUGFS_ALLOW_MOUNT BIT(1)
-
-#ifdef CONFIG_DEBUG_FS_ALLOW_ALL
-#define DEFAULT_DEBUGFS_ALLOW_BITS (DEBUGFS_ALLOW_MOUNT | DEBUGFS_ALLOW_API)
-#endif
-#ifdef CONFIG_DEBUG_FS_DISALLOW_MOUNT
-#define DEFAULT_DEBUGFS_ALLOW_BITS (DEBUGFS_ALLOW_API)
-#endif
-#ifdef CONFIG_DEBUG_FS_ALLOW_NONE
-#define DEFAULT_DEBUGFS_ALLOW_BITS (0)
-#endif
-
#endif /* _DEBUGFS_INTERNAL_H_ */
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index a670ba3e565e..5c0efd6b239f 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -675,11 +675,14 @@ static struct kernfs_node *__kernfs_new_node(struct kernfs_root *root,
if (parent) {
ret = security_kernfs_init_security(parent, kn);
if (ret)
- goto err_out3;
+ goto err_out4;
}
return kn;
+ err_out4:
+ simple_xattrs_free(&kn->iattr->xattrs, NULL);
+ kmem_cache_free(kernfs_iattrs_cache, kn->iattr);
err_out3:
spin_lock(&root->kernfs_idr_lock);
idr_remove(&root->ino_idr, (u32)kernfs_ino(kn));
diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
index 76eaf64b9d9e..3ac52e141766 100644
--- a/fs/kernfs/mount.c
+++ b/fs/kernfs/mount.c
@@ -298,6 +298,7 @@ static int kernfs_fill_super(struct super_block *sb, struct kernfs_fs_context *k
if (info->root->flags & KERNFS_ROOT_SUPPORT_EXPORTOP)
sb->s_export_op = &kernfs_export_ops;
sb->s_time_gran = 1;
+ sb->s_maxbytes = MAX_LFS_FILESIZE;
/* sysfs dentries and inodes don't require IO to create */
sb->s_shrink->seeks = 0;
diff --git a/fs/nfs/localio.c b/fs/nfs/localio.c
index 49ed90c6b9f2..f33bfa7b58e6 100644
--- a/fs/nfs/localio.c
+++ b/fs/nfs/localio.c
@@ -615,8 +615,11 @@ static void nfs_local_read_aio_complete(struct kiocb *kiocb, long ret)
nfs_local_pgio_aio_complete(iocb); /* Calls nfs_local_read_aio_complete_work */
}
-static void do_nfs_local_call_read(struct nfs_local_kiocb *iocb, struct file *filp)
+static void nfs_local_call_read(struct work_struct *work)
{
+ struct nfs_local_kiocb *iocb =
+ container_of(work, struct nfs_local_kiocb, work);
+ struct file *filp = iocb->kiocb.ki_filp;
bool force_done = false;
ssize_t status;
int n_iters;
@@ -633,7 +636,9 @@ static void do_nfs_local_call_read(struct nfs_local_kiocb *iocb, struct file *fi
} else
iocb->kiocb.ki_flags &= ~IOCB_DIRECT;
- status = filp->f_op->read_iter(&iocb->kiocb, &iocb->iters[i]);
+ scoped_with_creds(filp->f_cred)
+ status = filp->f_op->read_iter(&iocb->kiocb, &iocb->iters[i]);
+
if (status != -EIOCBQUEUED) {
if (unlikely(status >= 0 && status < iocb->iters[i].count))
force_done = true; /* Partial read */
@@ -645,16 +650,6 @@ static void do_nfs_local_call_read(struct nfs_local_kiocb *iocb, struct file *fi
}
}
-static void nfs_local_call_read(struct work_struct *work)
-{
- struct nfs_local_kiocb *iocb =
- container_of(work, struct nfs_local_kiocb, work);
- struct file *filp = iocb->kiocb.ki_filp;
-
- scoped_with_creds(filp->f_cred)
- do_nfs_local_call_read(iocb, filp);
-}
-
static int
nfs_local_do_read(struct nfs_local_kiocb *iocb,
const struct rpc_call_ops *call_ops)
@@ -822,13 +817,18 @@ static void nfs_local_write_aio_complete(struct kiocb *kiocb, long ret)
nfs_local_pgio_aio_complete(iocb); /* Calls nfs_local_write_aio_complete_work */
}
-static ssize_t do_nfs_local_call_write(struct nfs_local_kiocb *iocb,
- struct file *filp)
+static void nfs_local_call_write(struct work_struct *work)
{
+ struct nfs_local_kiocb *iocb =
+ container_of(work, struct nfs_local_kiocb, work);
+ struct file *filp = iocb->kiocb.ki_filp;
+ unsigned long old_flags = current->flags;
bool force_done = false;
ssize_t status;
int n_iters;
+ current->flags |= PF_LOCAL_THROTTLE | PF_MEMALLOC_NOIO;
+
file_start_write(filp);
n_iters = atomic_read(&iocb->n_iters);
for (int i = 0; i < n_iters ; i++) {
@@ -842,7 +842,9 @@ static ssize_t do_nfs_local_call_write(struct nfs_local_kiocb *iocb,
} else
iocb->kiocb.ki_flags &= ~IOCB_DIRECT;
- status = filp->f_op->write_iter(&iocb->kiocb, &iocb->iters[i]);
+ scoped_with_creds(filp->f_cred)
+ status = filp->f_op->write_iter(&iocb->kiocb, &iocb->iters[i]);
+
if (status != -EIOCBQUEUED) {
if (unlikely(status >= 0 && status < iocb->iters[i].count))
force_done = true; /* Partial write */
@@ -854,22 +856,6 @@ static ssize_t do_nfs_local_call_write(struct nfs_local_kiocb *iocb,
}
file_end_write(filp);
- return status;
-}
-
-static void nfs_local_call_write(struct work_struct *work)
-{
- struct nfs_local_kiocb *iocb =
- container_of(work, struct nfs_local_kiocb, work);
- struct file *filp = iocb->kiocb.ki_filp;
- unsigned long old_flags = current->flags;
- ssize_t status;
-
- current->flags |= PF_LOCAL_THROTTLE | PF_MEMALLOC_NOIO;
-
- scoped_with_creds(filp->f_cred)
- status = do_nfs_local_call_write(iocb, filp);
-
current->flags = old_flags;
}
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index e142bac4f9f8..e1e639f515a0 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -36,6 +36,9 @@ static umode_t __first_visible(const struct attribute_group *grp, struct kobject
if (grp->attrs && grp->attrs[0] && grp->is_visible)
return grp->is_visible(kobj, grp->attrs[0], 0);
+ if (grp->attrs && grp->attrs[0] && grp->is_visible_const)
+ return grp->is_visible_const(kobj, grp->attrs[0], 0);
+
if (grp->bin_attrs && grp->bin_attrs[0] && grp->is_bin_visible)
return grp->is_bin_visible(kobj, grp->bin_attrs[0], 0);
@@ -61,8 +64,11 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
*/
if (update)
kernfs_remove_by_name(parent, (*attr)->name);
- if (grp->is_visible) {
- mode = grp->is_visible(kobj, *attr, i);
+ if (grp->is_visible || grp->is_visible_const) {
+ if (grp->is_visible)
+ mode = grp->is_visible(kobj, *attr, i);
+ else
+ mode = grp->is_visible_const(kobj, *attr, i);
mode &= ~SYSFS_GROUP_INVISIBLE;
if (!mode)
continue;
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-06 14:27:04 +0000