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-rw-r--r--fs/aio.c47
1 files changed, 21 insertions, 26 deletions
diff --git a/fs/aio.c b/fs/aio.c
index c1e581dd32f5..01e0fb9ae45a 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -42,6 +42,7 @@
#include <linux/ramfs.h>
#include <linux/percpu-refcount.h>
#include <linux/mount.h>
+#include <linux/pseudo_fs.h>
#include <asm/kmap_types.h>
#include <linux/uaccess.h>
@@ -249,15 +250,12 @@ static struct file *aio_private_file(struct kioctx *ctx, loff_t nr_pages)
return file;
}
-static struct dentry *aio_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int aio_init_fs_context(struct fs_context *fc)
{
- struct dentry *root = mount_pseudo(fs_type, "aio:", NULL, NULL,
- AIO_RING_MAGIC);
-
- if (!IS_ERR(root))
- root->d_sb->s_iflags |= SB_I_NOEXEC;
- return root;
+ if (!init_pseudo(fc, AIO_RING_MAGIC))
+ return -ENOMEM;
+ fc->s_iflags |= SB_I_NOEXEC;
+ return 0;
}
/* aio_setup
@@ -268,7 +266,7 @@ static int __init aio_setup(void)
{
static struct file_system_type aio_fs = {
.name = "aio",
- .mount = aio_mount,
+ .init_fs_context = aio_init_fs_context,
.kill_sb = kill_anon_super,
};
aio_mnt = kern_mount(&aio_fs);
@@ -425,7 +423,7 @@ static int aio_migratepage(struct address_space *mapping, struct page *new,
BUG_ON(PageWriteback(old));
get_page(new);
- rc = migrate_page_move_mapping(mapping, new, old, mode, 1);
+ rc = migrate_page_move_mapping(mapping, new, old, 1);
if (rc != MIGRATEPAGE_SUCCESS) {
put_page(new);
goto out_unlock;
@@ -1479,8 +1477,9 @@ static int aio_prep_rw(struct kiocb *req, const struct iocb *iocb)
return 0;
}
-static int aio_setup_rw(int rw, const struct iocb *iocb, struct iovec **iovec,
- bool vectored, bool compat, struct iov_iter *iter)
+static ssize_t aio_setup_rw(int rw, const struct iocb *iocb,
+ struct iovec **iovec, bool vectored, bool compat,
+ struct iov_iter *iter)
{
void __user *buf = (void __user *)(uintptr_t)iocb->aio_buf;
size_t len = iocb->aio_nbytes;
@@ -1537,7 +1536,7 @@ static int aio_read(struct kiocb *req, const struct iocb *iocb,
return -EINVAL;
ret = aio_setup_rw(READ, iocb, &iovec, vectored, compat, &iter);
- if (ret)
+ if (ret < 0)
return ret;
ret = rw_verify_area(READ, file, &req->ki_pos, iov_iter_count(&iter));
if (!ret)
@@ -1565,7 +1564,7 @@ static int aio_write(struct kiocb *req, const struct iocb *iocb,
return -EINVAL;
ret = aio_setup_rw(WRITE, iocb, &iovec, vectored, compat, &iter);
- if (ret)
+ if (ret < 0)
return ret;
ret = rw_verify_area(WRITE, file, &req->ki_pos, iov_iter_count(&iter));
if (!ret) {
@@ -2093,7 +2092,6 @@ SYSCALL_DEFINE6(io_pgetevents,
const struct __aio_sigset __user *, usig)
{
struct __aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 ts;
bool interrupted;
int ret;
@@ -2104,14 +2102,14 @@ SYSCALL_DEFINE6(io_pgetevents,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
@@ -2129,7 +2127,6 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
const struct __aio_sigset __user *, usig)
{
struct __aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 ts;
bool interrupted;
int ret;
@@ -2141,14 +2138,14 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
return -EFAULT;
- ret = set_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
@@ -2197,7 +2194,6 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
const struct __compat_aio_sigset __user *, usig)
{
struct __compat_aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 t;
bool interrupted;
int ret;
@@ -2208,14 +2204,14 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_compat_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
@@ -2233,7 +2229,6 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
const struct __compat_aio_sigset __user *, usig)
{
struct __compat_aio_sigset ksig = { NULL, };
- sigset_t ksigmask, sigsaved;
struct timespec64 t;
bool interrupted;
int ret;
@@ -2244,14 +2239,14 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_compat_user_sigmask(ksig.sigmask, &ksigmask, &sigsaved, ksig.sigsetsize);
+ ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
if (ret)
return ret;
ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
interrupted = signal_pending(current);
- restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+ restore_saved_sigmask_unless(interrupted);
if (interrupted && !ret)
ret = -ERESTARTNOHAND;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-05-29 10:32:13 +0200