[syserror] Update several syserror errors to linuxerr equivalents.

Update/remove most syserror errors to linuxerr equivalents. For list
of removed errors, see //pkg/syserror/syserror.go.

PiperOrigin-RevId: 382574582

4 files changed, 8 insertions, 7 deletions

diff --git a/pkg/sentry/kernel/pipe/node.go b/pkg/sentry/kernel/pipe/node.go
index 2321d26dc..08786d704 100644
--- a/pkg/sentry/kernel/pipe/node.go
+++ b/pkg/sentry/kernel/pipe/node.go
@@ -113,7 +113,7 @@ func (i *inodeOperations) GetFile(ctx context.Context, d *fs.Dirent, flags fs.Fi
 			// read side isn't open yet.
 			if flags.NonBlocking {
 				w.DecRef(ctx)
-				return nil, syserror.ENXIO
+				return nil, linuxerr.ENXIO
 			}
 
 			if !waitFor(&i.mu, &i.rWakeup, ctx) {
@@ -136,5 +136,5 @@ func (i *inodeOperations) GetFile(ctx context.Context, d *fs.Dirent, flags fs.Fi
 }
 
 func (*inodeOperations) Allocate(_ context.Context, _ *fs.Inode, _, _ int64) error {
-	return syserror.EPIPE
+	return linuxerr.EPIPE
 }
diff --git a/pkg/sentry/kernel/pipe/pipe.go b/pkg/sentry/kernel/pipe/pipe.go
index 4d68a6e4a..85e3ce9f4 100644
--- a/pkg/sentry/kernel/pipe/pipe.go
+++ b/pkg/sentry/kernel/pipe/pipe.go
@@ -440,7 +440,7 @@ func (p *Pipe) SetFifoSize(size int64) (int64, error) {
 	p.mu.Lock()
 	defer p.mu.Unlock()
 	if size < p.size {
-		return 0, syserror.EBUSY
+		return 0, linuxerr.EBUSY
 	}
 	p.max = size
 	return size, nil
diff --git a/pkg/sentry/kernel/pipe/pipe_util.go b/pkg/sentry/kernel/pipe/pipe_util.go
index 3fa5d1d2f..84f9f6234 100644
--- a/pkg/sentry/kernel/pipe/pipe_util.go
+++ b/pkg/sentry/kernel/pipe/pipe_util.go
@@ -22,6 +22,7 @@ import (
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/amutex"
 	"gvisor.dev/gvisor/pkg/context"
+	"gvisor.dev/gvisor/pkg/errors/linuxerr"
 	"gvisor.dev/gvisor/pkg/marshal/primitive"
 	"gvisor.dev/gvisor/pkg/safemem"
 	"gvisor.dev/gvisor/pkg/sentry/arch"
@@ -86,7 +87,7 @@ func (p *Pipe) Write(ctx context.Context, src usermem.IOSequence) (int64, error)
 	if n > 0 {
 		p.Notify(waiter.ReadableEvents)
 	}
-	if err == unix.EPIPE {
+	if linuxerr.Equals(linuxerr.EPIPE, err) {
 		// If we are returning EPIPE send SIGPIPE to the task.
 		if sendSig := linux.SignalNoInfoFuncFromContext(ctx); sendSig != nil {
 			sendSig(linux.SIGPIPE)
diff --git a/pkg/sentry/kernel/pipe/vfs.go b/pkg/sentry/kernel/pipe/vfs.go
index 623375417..077d5fd7f 100644
--- a/pkg/sentry/kernel/pipe/vfs.go
+++ b/pkg/sentry/kernel/pipe/vfs.go
@@ -80,7 +80,7 @@ func (vp *VFSPipe) ReaderWriterPair(ctx context.Context, mnt *vfs.Mount, vfsd *v
 
 // Allocate implements vfs.FileDescriptionImpl.Allocate.
 func (*VFSPipe) Allocate(context.Context, uint64, uint64, uint64) error {
-	return syserror.ESPIPE
+	return linuxerr.ESPIPE
 }
 
 // Open opens the pipe represented by vp.
@@ -132,7 +132,7 @@ func (vp *VFSPipe) Open(ctx context.Context, mnt *vfs.Mount, vfsd *vfs.Dentry, s
 			// side isn't open yet.
 			if statusFlags&linux.O_NONBLOCK != 0 {
 				fd.DecRef(ctx)
-				return nil, syserror.ENXIO
+				return nil, linuxerr.ENXIO
 			}
 			// Wait for a reader to open the other end.
 			if !waitFor(&vp.mu, &vp.rWakeup, ctx) {
@@ -225,7 +225,7 @@ func (fd *VFSPipeFD) Readiness(mask waiter.EventMask) waiter.EventMask {
 
 // Allocate implements vfs.FileDescriptionImpl.Allocate.
 func (fd *VFSPipeFD) Allocate(ctx context.Context, mode, offset, length uint64) error {
-	return syserror.ESPIPE
+	return linuxerr.ESPIPE
 }
 
 // EventRegister implements waiter.Waitable.EventRegister.