[syserror] Remove pkg syserror.

Removes package syserror and moves still relevant code to either linuxerr
or to syserr (to be later removed).

Internal errors are converted from random types to *errors.Error types used
in linuxerr. Internal errors are in linuxerr/internal.go.

PiperOrigin-RevId: 390724202

7 files changed, 53 insertions, 60 deletions

diff --git a/pkg/sentry/syscalls/linux/vfs2/BUILD b/pkg/sentry/syscalls/linux/vfs2/BUILD
index a73f096ff..1e3bd2a50 100644
--- a/pkg/sentry/syscalls/linux/vfs2/BUILD
+++ b/pkg/sentry/syscalls/linux/vfs2/BUILD
@@ -73,7 +73,6 @@ go_library(
         "//pkg/sentry/vfs",
         "//pkg/sync",
         "//pkg/syserr",
-        "//pkg/syserror",
         "//pkg/usermem",
         "//pkg/waiter",
     ],
diff --git a/pkg/sentry/syscalls/linux/vfs2/poll.go b/pkg/sentry/syscalls/linux/vfs2/poll.go
index bdc40c5e9..204051cd0 100644
--- a/pkg/sentry/syscalls/linux/vfs2/poll.go
+++ b/pkg/sentry/syscalls/linux/vfs2/poll.go
@@ -20,15 +20,14 @@ import (
 
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/errors/linuxerr"
+	"gvisor.dev/gvisor/pkg/hostarch"
 	"gvisor.dev/gvisor/pkg/sentry/arch"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
 	ktime "gvisor.dev/gvisor/pkg/sentry/kernel/time"
 	"gvisor.dev/gvisor/pkg/sentry/limits"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/syserror"
+	"gvisor.dev/gvisor/pkg/syserr"
 	"gvisor.dev/gvisor/pkg/waiter"
-
-	"gvisor.dev/gvisor/pkg/hostarch"
 )
 
 // fileCap is the maximum allowable files for poll & select. This has no
@@ -189,7 +188,7 @@ func doPoll(t *kernel.Task, addr hostarch.Addr, nfds uint, timeout time.Duration
 		pfd[i].Events |= linux.POLLHUP | linux.POLLERR
 	}
 	remainingTimeout, n, err := pollBlock(t, pfd, timeout)
-	err = syserror.ConvertIntr(err, linuxerr.EINTR)
+	err = syserr.ConvertIntr(err, linuxerr.EINTR)
 
 	// The poll entries are copied out regardless of whether
 	// any are set or not. This aligns with the Linux behavior.
@@ -299,7 +298,7 @@ func doSelect(t *kernel.Task, nfds int, readFDs, writeFDs, exceptFDs hostarch.Ad
 
 	// Do the syscall, then count the number of bits set.
 	if _, _, err = pollBlock(t, pfd, timeout); err != nil {
-		return 0, syserror.ConvertIntr(err, linuxerr.EINTR)
+		return 0, syserr.ConvertIntr(err, linuxerr.EINTR)
 	}
 
 	// r, w, and e are currently event mask bitsets; unset bits corresponding
@@ -417,7 +416,7 @@ func poll(t *kernel.Task, pfdAddr hostarch.Addr, nfds uint, timeout time.Duratio
 			nfds:    nfds,
 			timeout: remainingTimeout,
 		})
-		return 0, syserror.ERESTART_RESTARTBLOCK
+		return 0, linuxerr.ERESTART_RESTARTBLOCK
 	}
 	return n, err
 }
@@ -464,7 +463,7 @@ func Ppoll(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
 	// Note that this means that if err is nil but copyErr is not, copyErr is
 	// ignored. This is consistent with Linux.
 	if linuxerr.Equals(linuxerr.EINTR, err) && copyErr == nil {
-		err = syserror.ERESTARTNOHAND
+		err = linuxerr.ERESTARTNOHAND
 	}
 	return n, nil, err
 }
@@ -494,7 +493,7 @@ func Select(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscal
 	copyErr := copyOutTimevalRemaining(t, startNs, timeout, timevalAddr)
 	// See comment in Ppoll.
 	if linuxerr.Equals(linuxerr.EINTR, err) && copyErr == nil {
-		err = syserror.ERESTARTNOHAND
+		err = linuxerr.ERESTARTNOHAND
 	}
 	return n, nil, err
 }
@@ -541,7 +540,7 @@ func Pselect(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
 	copyErr := copyOutTimespecRemaining(t, startNs, timeout, timespecAddr)
 	// See comment in Ppoll.
 	if linuxerr.Equals(linuxerr.EINTR, err) && copyErr == nil {
-		err = syserror.ERESTARTNOHAND
+		err = linuxerr.ERESTARTNOHAND
 	}
 	return n, nil, err
 }
diff --git a/pkg/sentry/syscalls/linux/vfs2/read_write.go b/pkg/sentry/syscalls/linux/vfs2/read_write.go
index fe8aa06da..4e7dc5080 100644
--- a/pkg/sentry/syscalls/linux/vfs2/read_write.go
+++ b/pkg/sentry/syscalls/linux/vfs2/read_write.go
@@ -25,7 +25,6 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/socket"
 	slinux "gvisor.dev/gvisor/pkg/sentry/syscalls/linux"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/syserror"
 	"gvisor.dev/gvisor/pkg/usermem"
 	"gvisor.dev/gvisor/pkg/waiter"
 )
@@ -63,7 +62,7 @@ func Read(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallC
 
 	n, err := read(t, file, dst, vfs.ReadOptions{})
 	t.IOUsage().AccountReadSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "read", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "read", file)
 }
 
 // Readv implements Linux syscall readv(2).
@@ -88,12 +87,12 @@ func Readv(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
 
 	n, err := read(t, file, dst, vfs.ReadOptions{})
 	t.IOUsage().AccountReadSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "readv", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "readv", file)
 }
 
 func read(t *kernel.Task, file *vfs.FileDescription, dst usermem.IOSequence, opts vfs.ReadOptions) (int64, error) {
 	n, err := file.Read(t, dst, opts)
-	if err != syserror.ErrWouldBlock {
+	if err != linuxerr.ErrWouldBlock {
 		return n, err
 	}
 
@@ -115,14 +114,14 @@ func read(t *kernel.Task, file *vfs.FileDescription, dst usermem.IOSequence, opt
 		// "would block".
 		n, err = file.Read(t, dst, opts)
 		total += n
-		if err != syserror.ErrWouldBlock {
+		if err != linuxerr.ErrWouldBlock {
 			break
 		}
 
 		// Wait for a notification that we should retry.
 		if err = t.BlockWithDeadline(ch, hasDeadline, deadline); err != nil {
 			if linuxerr.Equals(linuxerr.ETIMEDOUT, err) {
-				err = syserror.ErrWouldBlock
+				err = linuxerr.ErrWouldBlock
 			}
 			break
 		}
@@ -166,7 +165,7 @@ func Pread64(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
 
 	n, err := pread(t, file, dst, offset, vfs.ReadOptions{})
 	t.IOUsage().AccountReadSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "pread64", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "pread64", file)
 }
 
 // Preadv implements Linux syscall preadv(2).
@@ -197,7 +196,7 @@ func Preadv(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscal
 
 	n, err := pread(t, file, dst, offset, vfs.ReadOptions{})
 	t.IOUsage().AccountReadSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "preadv", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "preadv", file)
 }
 
 // Preadv2 implements Linux syscall preadv2(2).
@@ -243,12 +242,12 @@ func Preadv2(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
 		n, err = pread(t, file, dst, offset, opts)
 	}
 	t.IOUsage().AccountReadSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "preadv2", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "preadv2", file)
 }
 
 func pread(t *kernel.Task, file *vfs.FileDescription, dst usermem.IOSequence, offset int64, opts vfs.ReadOptions) (int64, error) {
 	n, err := file.PRead(t, dst, offset, opts)
-	if err != syserror.ErrWouldBlock {
+	if err != linuxerr.ErrWouldBlock {
 		return n, err
 	}
 
@@ -270,14 +269,14 @@ func pread(t *kernel.Task, file *vfs.FileDescription, dst usermem.IOSequence, of
 		// "would block".
 		n, err = file.PRead(t, dst, offset+total, opts)
 		total += n
-		if err != syserror.ErrWouldBlock {
+		if err != linuxerr.ErrWouldBlock {
 			break
 		}
 
 		// Wait for a notification that we should retry.
 		if err = t.BlockWithDeadline(ch, hasDeadline, deadline); err != nil {
 			if linuxerr.Equals(linuxerr.ETIMEDOUT, err) {
-				err = syserror.ErrWouldBlock
+				err = linuxerr.ErrWouldBlock
 			}
 			break
 		}
@@ -314,7 +313,7 @@ func Write(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall
 
 	n, err := write(t, file, src, vfs.WriteOptions{})
 	t.IOUsage().AccountWriteSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "write", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "write", file)
 }
 
 // Writev implements Linux syscall writev(2).
@@ -339,12 +338,12 @@ func Writev(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscal
 
 	n, err := write(t, file, src, vfs.WriteOptions{})
 	t.IOUsage().AccountWriteSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "writev", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "writev", file)
 }
 
 func write(t *kernel.Task, file *vfs.FileDescription, src usermem.IOSequence, opts vfs.WriteOptions) (int64, error) {
 	n, err := file.Write(t, src, opts)
-	if err != syserror.ErrWouldBlock {
+	if err != linuxerr.ErrWouldBlock {
 		return n, err
 	}
 
@@ -366,14 +365,14 @@ func write(t *kernel.Task, file *vfs.FileDescription, src usermem.IOSequence, op
 		// "would block".
 		n, err = file.Write(t, src, opts)
 		total += n
-		if err != syserror.ErrWouldBlock {
+		if err != linuxerr.ErrWouldBlock {
 			break
 		}
 
 		// Wait for a notification that we should retry.
 		if err = t.BlockWithDeadline(ch, hasDeadline, deadline); err != nil {
 			if linuxerr.Equals(linuxerr.ETIMEDOUT, err) {
-				err = syserror.ErrWouldBlock
+				err = linuxerr.ErrWouldBlock
 			}
 			break
 		}
@@ -416,7 +415,7 @@ func Pwrite64(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 
 	n, err := pwrite(t, file, src, offset, vfs.WriteOptions{})
 	t.IOUsage().AccountWriteSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "pwrite64", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "pwrite64", file)
 }
 
 // Pwritev implements Linux syscall pwritev(2).
@@ -447,7 +446,7 @@ func Pwritev(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
 
 	n, err := pwrite(t, file, src, offset, vfs.WriteOptions{})
 	t.IOUsage().AccountReadSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "pwritev", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "pwritev", file)
 }
 
 // Pwritev2 implements Linux syscall pwritev2(2).
@@ -493,12 +492,12 @@ func Pwritev2(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 		n, err = pwrite(t, file, src, offset, opts)
 	}
 	t.IOUsage().AccountWriteSyscall(n)
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "pwritev2", file)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "pwritev2", file)
 }
 
 func pwrite(t *kernel.Task, file *vfs.FileDescription, src usermem.IOSequence, offset int64, opts vfs.WriteOptions) (int64, error) {
 	n, err := file.PWrite(t, src, offset, opts)
-	if err != syserror.ErrWouldBlock {
+	if err != linuxerr.ErrWouldBlock {
 		return n, err
 	}
 
@@ -520,14 +519,14 @@ func pwrite(t *kernel.Task, file *vfs.FileDescription, src usermem.IOSequence, o
 		// "would block".
 		n, err = file.PWrite(t, src, offset+total, opts)
 		total += n
-		if err != syserror.ErrWouldBlock {
+		if err != linuxerr.ErrWouldBlock {
 			break
 		}
 
 		// Wait for a notification that we should retry.
 		if err = t.BlockWithDeadline(ch, hasDeadline, deadline); err != nil {
 			if linuxerr.Equals(linuxerr.ETIMEDOUT, err) {
-				err = syserror.ErrWouldBlock
+				err = linuxerr.ErrWouldBlock
 			}
 			break
 		}
diff --git a/pkg/sentry/syscalls/linux/vfs2/setstat.go b/pkg/sentry/syscalls/linux/vfs2/setstat.go
index 6688f4b5e..e608572b4 100644
--- a/pkg/sentry/syscalls/linux/vfs2/setstat.go
+++ b/pkg/sentry/syscalls/linux/vfs2/setstat.go
@@ -24,7 +24,6 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
 	"gvisor.dev/gvisor/pkg/sentry/limits"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/syserror"
 )
 
 const chmodMask = 0777 | linux.S_ISUID | linux.S_ISGID | linux.S_ISVTX
@@ -465,7 +464,7 @@ func setstatat(t *kernel.Task, dirfd int32, path fspath.Path, shouldAllowEmptyPa
 }
 
 func handleSetSizeError(t *kernel.Task, err error) error {
-	if err == syserror.ErrExceedsFileSizeLimit {
+	if err == linuxerr.ErrExceedsFileSizeLimit {
 		// Convert error to EFBIG and send a SIGXFSZ per setrlimit(2).
 		t.SendSignal(kernel.SignalInfoNoInfo(linux.SIGXFSZ, t, t))
 		return linuxerr.EFBIG
diff --git a/pkg/sentry/syscalls/linux/vfs2/socket.go b/pkg/sentry/syscalls/linux/vfs2/socket.go
index 97ff5eb55..48be5a88d 100644
--- a/pkg/sentry/syscalls/linux/vfs2/socket.go
+++ b/pkg/sentry/syscalls/linux/vfs2/socket.go
@@ -19,6 +19,7 @@ import (
 
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/errors/linuxerr"
+	"gvisor.dev/gvisor/pkg/hostarch"
 	"gvisor.dev/gvisor/pkg/marshal"
 	"gvisor.dev/gvisor/pkg/marshal/primitive"
 	"gvisor.dev/gvisor/pkg/sentry/arch"
@@ -30,10 +31,7 @@ import (
 	slinux "gvisor.dev/gvisor/pkg/sentry/syscalls/linux"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
 	"gvisor.dev/gvisor/pkg/syserr"
-	"gvisor.dev/gvisor/pkg/syserror"
 	"gvisor.dev/gvisor/pkg/usermem"
-
-	"gvisor.dev/gvisor/pkg/hostarch"
 )
 
 // maxAddrLen is the maximum socket address length we're willing to accept.
@@ -274,7 +272,7 @@ func Connect(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
 	}
 
 	blocking := (file.StatusFlags() & linux.SOCK_NONBLOCK) == 0
-	return 0, nil, syserror.ConvertIntr(s.Connect(t, a, blocking).ToError(), syserror.ERESTARTSYS)
+	return 0, nil, syserr.ConvertIntr(s.Connect(t, a, blocking).ToError(), linuxerr.ERESTARTSYS)
 }
 
 // accept is the implementation of the accept syscall. It is called by accept
@@ -305,7 +303,7 @@ func accept(t *kernel.Task, fd int32, addr hostarch.Addr, addrLen hostarch.Addr,
 	peerRequested := addrLen != 0
 	nfd, peer, peerLen, e := s.Accept(t, peerRequested, flags, blocking)
 	if e != nil {
-		return 0, syserror.ConvertIntr(e.ToError(), syserror.ERESTARTSYS)
+		return 0, syserr.ConvertIntr(e.ToError(), linuxerr.ERESTARTSYS)
 	}
 	if peerRequested {
 		// NOTE(magi): Linux does not give you an error if it can't
@@ -767,7 +765,7 @@ func recvSingleMsg(t *kernel.Task, s socket.SocketVFS2, msgPtr hostarch.Addr, fl
 	if msg.ControlLen == 0 && msg.NameLen == 0 {
 		n, mflags, _, _, cms, err := s.RecvMsg(t, dst, int(flags), haveDeadline, deadline, false, 0)
 		if err != nil {
-			return 0, syserror.ConvertIntr(err.ToError(), syserror.ERESTARTSYS)
+			return 0, syserr.ConvertIntr(err.ToError(), linuxerr.ERESTARTSYS)
 		}
 		if !cms.Unix.Empty() {
 			mflags |= linux.MSG_CTRUNC
@@ -789,7 +787,7 @@ func recvSingleMsg(t *kernel.Task, s socket.SocketVFS2, msgPtr hostarch.Addr, fl
 	}
 	n, mflags, sender, senderLen, cms, e := s.RecvMsg(t, dst, int(flags), haveDeadline, deadline, msg.NameLen != 0, msg.ControlLen)
 	if e != nil {
-		return 0, syserror.ConvertIntr(e.ToError(), syserror.ERESTARTSYS)
+		return 0, syserr.ConvertIntr(e.ToError(), linuxerr.ERESTARTSYS)
 	}
 	defer cms.Release(t)
 
@@ -878,7 +876,7 @@ func recvFrom(t *kernel.Task, fd int32, bufPtr hostarch.Addr, bufLen uint64, fla
 	n, _, sender, senderLen, cm, e := s.RecvMsg(t, dst, int(flags), haveDeadline, deadline, nameLenPtr != 0, 0)
 	cm.Release(t)
 	if e != nil {
-		return 0, syserror.ConvertIntr(e.ToError(), syserror.ERESTARTSYS)
+		return 0, syserr.ConvertIntr(e.ToError(), linuxerr.ERESTARTSYS)
 	}
 
 	// Copy the address to the caller.
@@ -1064,7 +1062,7 @@ func sendSingleMsg(t *kernel.Task, s socket.SocketVFS2, file *vfs.FileDescriptio
 
 	// Call the syscall implementation.
 	n, e := s.SendMsg(t, src, to, int(flags), haveDeadline, deadline, controlMessages)
-	err = slinux.HandleIOErrorVFS2(t, n != 0, e.ToError(), syserror.ERESTARTSYS, "sendmsg", file)
+	err = slinux.HandleIOErrorVFS2(t, n != 0, e.ToError(), linuxerr.ERESTARTSYS, "sendmsg", file)
 	// Control messages should be released on error as well as for zero-length
 	// messages, which are discarded by the receiver.
 	if n == 0 || err != nil {
@@ -1126,7 +1124,7 @@ func sendTo(t *kernel.Task, fd int32, bufPtr hostarch.Addr, bufLen uint64, flags
 
 	// Call the syscall implementation.
 	n, e := s.SendMsg(t, src, to, int(flags), haveDeadline, deadline, socket.ControlMessages{Unix: control.New(t, s, nil)})
-	return uintptr(n), slinux.HandleIOErrorVFS2(t, n != 0, e.ToError(), syserror.ERESTARTSYS, "sendto", file)
+	return uintptr(n), slinux.HandleIOErrorVFS2(t, n != 0, e.ToError(), linuxerr.ERESTARTSYS, "sendto", file)
 }
 
 // SendTo implements the linux syscall sendto(2).
diff --git a/pkg/sentry/syscalls/linux/vfs2/splice.go b/pkg/sentry/syscalls/linux/vfs2/splice.go
index d8009123f..0205f09e0 100644
--- a/pkg/sentry/syscalls/linux/vfs2/splice.go
+++ b/pkg/sentry/syscalls/linux/vfs2/splice.go
@@ -26,7 +26,6 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/kernel/pipe"
 	slinux "gvisor.dev/gvisor/pkg/sentry/syscalls/linux"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/syserror"
 	"gvisor.dev/gvisor/pkg/usermem"
 	"gvisor.dev/gvisor/pkg/waiter"
 )
@@ -151,7 +150,7 @@ func Splice(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscal
 			panic("at least one end of splice must be a pipe")
 		}
 
-		if n != 0 || err != syserror.ErrWouldBlock || nonBlock {
+		if n != 0 || err != linuxerr.ErrWouldBlock || nonBlock {
 			break
 		}
 		if err = dw.waitForBoth(t); err != nil {
@@ -173,7 +172,7 @@ func Splice(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscal
 
 	// We can only pass a single file to handleIOError, so pick inFile arbitrarily.
 	// This is used only for debugging purposes.
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "splice", outFile)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "splice", outFile)
 }
 
 // Tee implements Linux syscall tee(2).
@@ -241,7 +240,7 @@ func Tee(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallCo
 	defer dw.destroy()
 	for {
 		n, err = pipe.Tee(t, outPipeFD, inPipeFD, count)
-		if n != 0 || err != syserror.ErrWouldBlock || nonBlock {
+		if n != 0 || err != linuxerr.ErrWouldBlock || nonBlock {
 			break
 		}
 		if err = dw.waitForBoth(t); err != nil {
@@ -251,7 +250,7 @@ func Tee(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallCo
 
 	if n != 0 {
 		// If a partial write is completed, the error is dropped. Log it here.
-		if err != nil && err != io.EOF && err != syserror.ErrWouldBlock {
+		if err != nil && err != io.EOF && err != linuxerr.ErrWouldBlock {
 			log.Debugf("tee completed a partial write with error: %v", err)
 			err = nil
 		}
@@ -259,7 +258,7 @@ func Tee(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallCo
 
 	// We can only pass a single file to handleIOError, so pick inFile arbitrarily.
 	// This is used only for debugging purposes.
-	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, syserror.ERESTARTSYS, "tee", inFile)
+	return uintptr(n), nil, slinux.HandleIOErrorVFS2(t, n != 0, err, linuxerr.ERESTARTSYS, "tee", inFile)
 }
 
 // Sendfile implements linux system call sendfile(2).
@@ -360,10 +359,10 @@ func Sendfile(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 				break
 			}
 			if err == nil && t.Interrupted() {
-				err = syserror.ErrInterrupted
+				err = linuxerr.ErrInterrupted
 				break
 			}
-			if err == syserror.ErrWouldBlock && !nonBlock {
+			if err == linuxerr.ErrWouldBlock && !nonBlock {
 				err = dw.waitForBoth(t)
 			}
 			if err != nil {
@@ -389,7 +388,7 @@ func Sendfile(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 				var writeN int64
 				writeN, err = outFile.Write(t, usermem.BytesIOSequence(wbuf), vfs.WriteOptions{})
 				wbuf = wbuf[writeN:]
-				if err == syserror.ErrWouldBlock && !nonBlock {
+				if err == linuxerr.ErrWouldBlock && !nonBlock {
 					err = dw.waitForOut(t)
 				}
 				if err != nil {
@@ -420,10 +419,10 @@ func Sendfile(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 				break
 			}
 			if err == nil && t.Interrupted() {
-				err = syserror.ErrInterrupted
+				err = linuxerr.ErrInterrupted
 				break
 			}
-			if err == syserror.ErrWouldBlock && !nonBlock {
+			if err == linuxerr.ErrWouldBlock && !nonBlock {
 				err = dw.waitForBoth(t)
 			}
 			if err != nil {
@@ -441,7 +440,7 @@ func Sendfile(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 	}
 
 	if total != 0 {
-		if err != nil && err != io.EOF && err != syserror.ErrWouldBlock {
+		if err != nil && err != io.EOF && err != linuxerr.ErrWouldBlock {
 			// If a partial write is completed, the error is dropped. Log it here.
 			log.Debugf("sendfile completed a partial write with error: %v", err)
 			err = nil
@@ -450,7 +449,7 @@ func Sendfile(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc
 
 	// We can only pass a single file to handleIOError, so pick inFile arbitrarily.
 	// This is used only for debugging purposes.
-	return uintptr(total), nil, slinux.HandleIOErrorVFS2(t, total != 0, err, syserror.ERESTARTSYS, "sendfile", inFile)
+	return uintptr(total), nil, slinux.HandleIOErrorVFS2(t, total != 0, err, linuxerr.ERESTARTSYS, "sendfile", inFile)
 }
 
 // dualWaiter is used to wait on one or both vfs.FileDescriptions. It is not
diff --git a/pkg/sentry/syscalls/linux/vfs2/sync.go b/pkg/sentry/syscalls/linux/vfs2/sync.go
index 991562520..cfc693422 100644
--- a/pkg/sentry/syscalls/linux/vfs2/sync.go
+++ b/pkg/sentry/syscalls/linux/vfs2/sync.go
@@ -19,7 +19,7 @@ import (
 	"gvisor.dev/gvisor/pkg/errors/linuxerr"
 	"gvisor.dev/gvisor/pkg/sentry/arch"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
-	"gvisor.dev/gvisor/pkg/syserror"
+	"gvisor.dev/gvisor/pkg/syserr"
 )
 
 // Sync implements Linux syscall sync(2).
@@ -113,7 +113,7 @@ func SyncFileRange(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel
 
 	if flags&linux.SYNC_FILE_RANGE_WAIT_AFTER != 0 {
 		if err := file.Sync(t); err != nil {
-			return 0, nil, syserror.ConvertIntr(err, syserror.ERESTARTSYS)
+			return 0, nil, syserr.ConvertIntr(err, linuxerr.ERESTARTSYS)
 		}
 	}
 	return 0, nil, nil