[syserror] Update syserror to linuxerr for EACCES, EBADF, and EPERM.

Update all instances of the above errors to the faster linuxerr implementation.
With the temporary linuxerr.Equals(), no logical changes are made.

PiperOrigin-RevId: 382306655

1 files changed, 6 insertions, 6 deletions

diff --git a/pkg/sentry/fs/proc/task.go b/pkg/sentry/fs/proc/task.go
index 7ece1377a..7a7af31e4 100644
--- a/pkg/sentry/fs/proc/task.go
+++ b/pkg/sentry/fs/proc/task.go
@@ -62,7 +62,7 @@ func getTaskMM(t *kernel.Task) (*mm.MemoryManager, error) {
 func checkTaskState(t *kernel.Task) error {
 	switch t.ExitState() {
 	case kernel.TaskExitZombie:
-		return syserror.EACCES
+		return linuxerr.EACCES
 	case kernel.TaskExitDead:
 		return syserror.ESRCH
 	}
@@ -273,7 +273,7 @@ func (e *exe) executable() (file fsbridge.File, err error) {
 	e.t.WithMuLocked(func(t *kernel.Task) {
 		mm := t.MemoryManager()
 		if mm == nil {
-			err = syserror.EACCES
+			err = linuxerr.EACCES
 			return
 		}
 
@@ -291,7 +291,7 @@ func (e *exe) executable() (file fsbridge.File, err error) {
 // Readlink implements fs.InodeOperations.
 func (e *exe) Readlink(ctx context.Context, inode *fs.Inode) (string, error) {
 	if !kernel.ContextCanTrace(ctx, e.t, false) {
-		return "", syserror.EACCES
+		return "", linuxerr.EACCES
 	}
 
 	// Pull out the executable for /proc/TID/exe.
@@ -324,7 +324,7 @@ func newCwd(ctx context.Context, t *kernel.Task, msrc *fs.MountSource) *fs.Inode
 // Readlink implements fs.InodeOperations.
 func (e *cwd) Readlink(ctx context.Context, inode *fs.Inode) (string, error) {
 	if !kernel.ContextCanTrace(ctx, e.t, false) {
-		return "", syserror.EACCES
+		return "", linuxerr.EACCES
 	}
 	if err := checkTaskState(e.t); err != nil {
 		return "", err
@@ -381,7 +381,7 @@ func (n *namespaceSymlink) Readlink(ctx context.Context, inode *fs.Inode) (strin
 // Getlink implements fs.InodeOperations.Getlink.
 func (n *namespaceSymlink) Getlink(ctx context.Context, inode *fs.Inode) (*fs.Dirent, error) {
 	if !kernel.ContextCanTrace(ctx, n.t, false) {
-		return nil, syserror.EACCES
+		return nil, linuxerr.EACCES
 	}
 	if err := checkTaskState(n.t); err != nil {
 		return nil, err
@@ -449,7 +449,7 @@ func (m *memData) GetFile(ctx context.Context, dirent *fs.Dirent, flags fs.FileF
 	// Permission to read this file is governed by PTRACE_MODE_ATTACH_FSCREDS
 	// Since we dont implement setfsuid/setfsgid we can just use PTRACE_MODE_ATTACH
 	if !kernel.ContextCanTrace(ctx, m.t, true) {
-		return nil, syserror.EACCES
+		return nil, linuxerr.EACCES
 	}
 	if err := checkTaskState(m.t); err != nil {
 		return nil, err