[syserror] Convert remaining syserror definitions to linuxerr.

Convert remaining public errors (e.g. EINTR) from syserror to linuxerr.

PiperOrigin-RevId: 390471763

3 files changed, 13 insertions, 15 deletions

diff --git a/pkg/sentry/fsimpl/kernfs/fd_impl_util.go b/pkg/sentry/fsimpl/kernfs/fd_impl_util.go
index 8b008dc10..7db1473c4 100644
--- a/pkg/sentry/fsimpl/kernfs/fd_impl_util.go
+++ b/pkg/sentry/fsimpl/kernfs/fd_impl_util.go
@@ -24,7 +24,6 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/memmap"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
 	"gvisor.dev/gvisor/pkg/sync"
-	"gvisor.dev/gvisor/pkg/syserror"
 	"gvisor.dev/gvisor/pkg/usermem"
 )
 
@@ -99,7 +98,7 @@ func NewGenericDirectoryFD(m *vfs.Mount, d *Dentry, children *OrderedChildren, l
 func (fd *GenericDirectoryFD) Init(children *OrderedChildren, locks *vfs.FileLocks, opts *vfs.OpenOptions, fdOpts GenericDirectoryFDOptions) error {
 	if vfs.AccessTypesForOpenFlags(opts)&vfs.MayWrite != 0 {
 		// Can't open directories for writing.
-		return syserror.EISDIR
+		return linuxerr.EISDIR
 	}
 	fd.LockFD.Init(locks)
 	fd.seekEnd = fdOpts.SeekEnd
diff --git a/pkg/sentry/fsimpl/kernfs/filesystem.go b/pkg/sentry/fsimpl/kernfs/filesystem.go
index a97473f7d..363ebc466 100644
--- a/pkg/sentry/fsimpl/kernfs/filesystem.go
+++ b/pkg/sentry/fsimpl/kernfs/filesystem.go
@@ -26,7 +26,6 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
 	"gvisor.dev/gvisor/pkg/sentry/socket/unix/transport"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/syserror"
 )
 
 // stepExistingLocked resolves rp.Component() in parent directory vfsd.
@@ -224,7 +223,7 @@ func checkCreateLocked(ctx context.Context, creds *auth.Credentials, name string
 		return linuxerr.EEXIST
 	}
 	if parent.VFSDentry().IsDead() {
-		return syserror.ENOENT
+		return linuxerr.ENOENT
 	}
 	if err := parent.inode.CheckPermissions(ctx, creds, vfs.MayWrite); err != nil {
 		return err
@@ -241,7 +240,7 @@ func checkDeleteLocked(ctx context.Context, rp *vfs.ResolvingPath, d *Dentry) er
 		return linuxerr.EBUSY
 	}
 	if parent.vfsd.IsDead() {
-		return syserror.ENOENT
+		return linuxerr.ENOENT
 	}
 	if err := parent.inode.CheckPermissions(ctx, rp.Credentials(), vfs.MayWrite|vfs.MayExec); err != nil {
 		return err
@@ -362,7 +361,7 @@ func (fs *Filesystem) LinkAt(ctx context.Context, rp *vfs.ResolvingPath, vd vfs.
 		return err
 	}
 	if rp.MustBeDir() {
-		return syserror.ENOENT
+		return linuxerr.ENOENT
 	}
 	if rp.Mount() != vd.Mount() {
 		return linuxerr.EXDEV
@@ -443,7 +442,7 @@ func (fs *Filesystem) MknodAt(ctx context.Context, rp *vfs.ResolvingPath, opts v
 		return err
 	}
 	if rp.MustBeDir() {
-		return syserror.ENOENT
+		return linuxerr.ENOENT
 	}
 	if err := rp.Mount().CheckBeginWrite(); err != nil {
 		return err
@@ -509,7 +508,7 @@ func (fs *Filesystem) OpenAt(ctx context.Context, rp *vfs.ResolvingPath, opts vf
 	defer unlock()
 	if rp.Done() {
 		if rp.MustBeDir() {
-			return nil, syserror.EISDIR
+			return nil, linuxerr.EISDIR
 		}
 		if mustCreate {
 			return nil, linuxerr.EEXIST
@@ -536,11 +535,11 @@ afterTrailingSymlink:
 	}
 	// Reject attempts to open directories with O_CREAT.
 	if rp.MustBeDir() {
-		return nil, syserror.EISDIR
+		return nil, linuxerr.EISDIR
 	}
 	pc := rp.Component()
 	if pc == "." || pc == ".." {
-		return nil, syserror.EISDIR
+		return nil, linuxerr.EISDIR
 	}
 	if len(pc) > linux.NAME_MAX {
 		return nil, linuxerr.ENAMETOOLONG
@@ -861,7 +860,7 @@ func (fs *Filesystem) SymlinkAt(ctx context.Context, rp *vfs.ResolvingPath, targ
 		return err
 	}
 	if rp.MustBeDir() {
-		return syserror.ENOENT
+		return linuxerr.ENOENT
 	}
 	if err := rp.Mount().CheckBeginWrite(); err != nil {
 		return err
@@ -895,7 +894,7 @@ func (fs *Filesystem) UnlinkAt(ctx context.Context, rp *vfs.ResolvingPath) error
 		return err
 	}
 	if d.isDir() {
-		return syserror.EISDIR
+		return linuxerr.EISDIR
 	}
 	virtfs := rp.VirtualFilesystem()
 	parentDentry := d.parent
diff --git a/pkg/sentry/fsimpl/kernfs/kernfs.go b/pkg/sentry/fsimpl/kernfs/kernfs.go
index 90c8b75d1..544698694 100644
--- a/pkg/sentry/fsimpl/kernfs/kernfs.go
+++ b/pkg/sentry/fsimpl/kernfs/kernfs.go
@@ -61,12 +61,12 @@ import (
 
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/context"
+	"gvisor.dev/gvisor/pkg/errors/linuxerr"
 	"gvisor.dev/gvisor/pkg/fspath"
 	"gvisor.dev/gvisor/pkg/refsvfs2"
 	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
 	"gvisor.dev/gvisor/pkg/sentry/vfs"
 	"gvisor.dev/gvisor/pkg/sync"
-	"gvisor.dev/gvisor/pkg/syserror"
 )
 
 // Filesystem mostly implements vfs.FilesystemImpl for a generic in-memory
@@ -568,7 +568,7 @@ func (d *Dentry) WalkDentryTree(ctx context.Context, vfsObj *vfs.VirtualFilesyst
 
 		switch {
 		case target == nil:
-			return nil, syserror.ENOENT
+			return nil, linuxerr.ENOENT
 		case pc == ".":
 			// No-op, consume component and continue.
 		case pc == "..":
@@ -593,7 +593,7 @@ func (d *Dentry) WalkDentryTree(ctx context.Context, vfsObj *vfs.VirtualFilesyst
 	}
 
 	if target == nil {
-		return nil, syserror.ENOENT
+		return nil, linuxerr.ENOENT
 	}
 
 	target.IncRef()