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authorAl Viro <viro@zeniv.linux.org.uk>2024-05-31 20:12:01 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2024-08-13 04:00:43 +0200
commit1da91ea87aefe2c25b68c9f96947a9271ba6325d (patch)
treee0d317b1ee86d7b03238e98f25f1f23f233b2511 /arch
parentLinux 6.11-rc1 (diff)
downloadlinux-1da91ea87aefe2c25b68c9f96947a9271ba6325d.tar.xz
linux-1da91ea87aefe2c25b68c9f96947a9271ba6325d.zip
introduce fd_file(), convert all accessors to it.
For any changes of struct fd representation we need to turn existing accesses to fields into calls of wrappers. Accesses to struct fd::flags are very few (3 in linux/file.h, 1 in net/socket.c, 3 in fs/overlayfs/file.c and 3 more in explicit initializers). Those can be dealt with in the commit converting to new layout; accesses to struct fd::file are too many for that. This commit converts (almost) all of f.file to fd_file(f). It's not entirely mechanical ('file' is used as a member name more than just in struct fd) and it does not even attempt to distinguish the uses in pointer context from those in boolean context; the latter will be eventually turned into a separate helper (fd_empty()). NOTE: mass conversion to fd_empty(), tempting as it might be, is a bad idea; better do that piecewise in commit that convert from fdget...() to CLASS(...). [conflicts in fs/fhandle.c, kernel/bpf/syscall.c, mm/memcontrol.c caught by git; fs/stat.c one got caught by git grep] [fs/xattr.c conflict] Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/osf_sys.c4
-rw-r--r--arch/arm/kernel/sys_oabi-compat.c10
-rw-r--r--arch/powerpc/kvm/book3s_64_vio.c4
-rw-r--r--arch/powerpc/kvm/powerpc.c12
-rw-r--r--arch/powerpc/platforms/cell/spu_syscalls.c8
-rw-r--r--arch/x86/kernel/cpu/sgx/main.c4
-rw-r--r--arch/x86/kvm/svm/sev.c16
7 files changed, 29 insertions, 29 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index e5f881bc8288..56fea57f9642 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -160,10 +160,10 @@ SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
.count = count
};
- if (!arg.file)
+ if (!fd_file(arg))
return -EBADF;
- error = iterate_dir(arg.file, &buf.ctx);
+ error = iterate_dir(fd_file(arg), &buf.ctx);
if (error >= 0)
error = buf.error;
if (count != buf.count)
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
index d00f4040a9f5..f5781ff54a5c 100644
--- a/arch/arm/kernel/sys_oabi-compat.c
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -239,19 +239,19 @@ asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd,
struct flock64 flock;
long err = -EBADF;
- if (!f.file)
+ if (!fd_file(f))
goto out;
switch (cmd) {
case F_GETLK64:
case F_OFD_GETLK:
- err = security_file_fcntl(f.file, cmd, arg);
+ err = security_file_fcntl(fd_file(f), cmd, arg);
if (err)
break;
err = get_oabi_flock(&flock, argp);
if (err)
break;
- err = fcntl_getlk64(f.file, cmd, &flock);
+ err = fcntl_getlk64(fd_file(f), cmd, &flock);
if (!err)
err = put_oabi_flock(&flock, argp);
break;
@@ -259,13 +259,13 @@ asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd,
case F_SETLKW64:
case F_OFD_SETLK:
case F_OFD_SETLKW:
- err = security_file_fcntl(f.file, cmd, arg);
+ err = security_file_fcntl(fd_file(f), cmd, arg);
if (err)
break;
err = get_oabi_flock(&flock, argp);
if (err)
break;
- err = fcntl_setlk64(fd, f.file, cmd, &flock);
+ err = fcntl_setlk64(fd, fd_file(f), cmd, &flock);
break;
default:
err = sys_fcntl64(fd, cmd, arg);
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 3ff3de9a52ac..34c0adb9fdbf 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -118,12 +118,12 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
struct fd f;
f = fdget(tablefd);
- if (!f.file)
+ if (!fd_file(f))
return -EBADF;
rcu_read_lock();
list_for_each_entry_rcu(stt, &kvm->arch.spapr_tce_tables, list) {
- if (stt == f.file->private_data) {
+ if (stt == fd_file(f)->private_data) {
found = true;
break;
}
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 5e6c7b527677..f14329989e9a 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -1938,11 +1938,11 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = -EBADF;
f = fdget(cap->args[0]);
- if (!f.file)
+ if (!fd_file(f))
break;
r = -EPERM;
- dev = kvm_device_from_filp(f.file);
+ dev = kvm_device_from_filp(fd_file(f));
if (dev)
r = kvmppc_mpic_connect_vcpu(dev, vcpu, cap->args[1]);
@@ -1957,11 +1957,11 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = -EBADF;
f = fdget(cap->args[0]);
- if (!f.file)
+ if (!fd_file(f))
break;
r = -EPERM;
- dev = kvm_device_from_filp(f.file);
+ dev = kvm_device_from_filp(fd_file(f));
if (dev) {
if (xics_on_xive())
r = kvmppc_xive_connect_vcpu(dev, vcpu, cap->args[1]);
@@ -1980,7 +1980,7 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = -EBADF;
f = fdget(cap->args[0]);
- if (!f.file)
+ if (!fd_file(f))
break;
r = -ENXIO;
@@ -1990,7 +1990,7 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
}
r = -EPERM;
- dev = kvm_device_from_filp(f.file);
+ dev = kvm_device_from_filp(fd_file(f));
if (dev)
r = kvmppc_xive_native_connect_vcpu(dev, vcpu,
cap->args[1]);
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 87ad7d563cfa..cd7d42fc12a6 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -66,8 +66,8 @@ SYSCALL_DEFINE4(spu_create, const char __user *, name, unsigned int, flags,
if (flags & SPU_CREATE_AFFINITY_SPU) {
struct fd neighbor = fdget(neighbor_fd);
ret = -EBADF;
- if (neighbor.file) {
- ret = calls->create_thread(name, flags, mode, neighbor.file);
+ if (fd_file(neighbor)) {
+ ret = calls->create_thread(name, flags, mode, fd_file(neighbor));
fdput(neighbor);
}
} else
@@ -89,8 +89,8 @@ SYSCALL_DEFINE3(spu_run,int, fd, __u32 __user *, unpc, __u32 __user *, ustatus)
ret = -EBADF;
arg = fdget(fd);
- if (arg.file) {
- ret = calls->spu_run(arg.file, unpc, ustatus);
+ if (fd_file(arg)) {
+ ret = calls->spu_run(fd_file(arg), unpc, ustatus);
fdput(arg);
}
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index 27892e57c4ef..d01deb386395 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -895,10 +895,10 @@ int sgx_set_attribute(unsigned long *allowed_attributes,
{
struct fd f = fdget(attribute_fd);
- if (!f.file)
+ if (!fd_file(f))
return -EINVAL;
- if (f.file->f_op != &sgx_provision_fops) {
+ if (fd_file(f)->f_op != &sgx_provision_fops) {
fdput(f);
return -EINVAL;
}
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index a16c873b3232..0e38b5223263 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -534,10 +534,10 @@ static int __sev_issue_cmd(int fd, int id, void *data, int *error)
int ret;
f = fdget(fd);
- if (!f.file)
+ if (!fd_file(f))
return -EBADF;
- ret = sev_issue_cmd_external_user(f.file, id, data, error);
+ ret = sev_issue_cmd_external_user(fd_file(f), id, data, error);
fdput(f);
return ret;
@@ -2078,15 +2078,15 @@ int sev_vm_move_enc_context_from(struct kvm *kvm, unsigned int source_fd)
bool charged = false;
int ret;
- if (!f.file)
+ if (!fd_file(f))
return -EBADF;
- if (!file_is_kvm(f.file)) {
+ if (!file_is_kvm(fd_file(f))) {
ret = -EBADF;
goto out_fput;
}
- source_kvm = f.file->private_data;
+ source_kvm = fd_file(f)->private_data;
ret = sev_lock_two_vms(kvm, source_kvm);
if (ret)
goto out_fput;
@@ -2801,15 +2801,15 @@ int sev_vm_copy_enc_context_from(struct kvm *kvm, unsigned int source_fd)
struct kvm_sev_info *source_sev, *mirror_sev;
int ret;
- if (!f.file)
+ if (!fd_file(f))
return -EBADF;
- if (!file_is_kvm(f.file)) {
+ if (!file_is_kvm(fd_file(f))) {
ret = -EBADF;
goto e_source_fput;
}
- source_kvm = f.file->private_data;
+ source_kvm = fd_file(f)->private_data;
ret = sev_lock_two_vms(kvm, source_kvm);
if (ret)
goto e_source_fput;