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| author | Jamie Liu <jamieliu@google.com> | 2020-08-25 16:38:07 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-25 16:40:02 -0700 |
| commit | 247dcd62d436943ad0bf8455c2be22bc36da6637 (patch) | |
| tree | 8b59371a081ccc1a658cc074ee786ffc1ca0b0ef /pkg/sentry/fsimpl/tmpfs/filesystem.go | |
| parent | cb573c8e0bf042ea111dc83c72f25d135623032f (diff) | |
Return non-zero size for tmpfs statfs(2).
This does not implement accepting or enforcing any size limit, which will be
more complex and has performance implications; it just returns a fixed non-zero
size.
Updates #1936
PiperOrigin-RevId: 328428588
Diffstat (limited to 'pkg/sentry/fsimpl/tmpfs/filesystem.go')
| -rw-r--r-- | pkg/sentry/fsimpl/tmpfs/filesystem.go | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/filesystem.go b/pkg/sentry/fsimpl/tmpfs/filesystem.go index 7924a0911..eddfeab76 100644 --- a/pkg/sentry/fsimpl/tmpfs/filesystem.go +++ b/pkg/sentry/fsimpl/tmpfs/filesystem.go @@ -25,7 +25,6 @@ import ( "gvisor.dev/gvisor/pkg/sentry/socket/unix/transport" "gvisor.dev/gvisor/pkg/sentry/vfs" "gvisor.dev/gvisor/pkg/syserror" - "gvisor.dev/gvisor/pkg/usermem" ) // Sync implements vfs.FilesystemImpl.Sync. @@ -706,16 +705,7 @@ func (fs *filesystem) StatFSAt(ctx context.Context, rp *vfs.ResolvingPath) (linu if _, err := resolveLocked(ctx, rp); err != nil { return linux.Statfs{}, err } - statfs := linux.Statfs{ - Type: linux.TMPFS_MAGIC, - BlockSize: usermem.PageSize, - FragmentSize: usermem.PageSize, - NameLength: linux.NAME_MAX, - // TODO(b/29637826): Allow configuring a tmpfs size and enforce it. - Blocks: 0, - BlocksFree: 0, - } - return statfs, nil + return globalStatfs, nil } // SymlinkAt implements vfs.FilesystemImpl.SymlinkAt. |