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authorFabricio Voznika <fvoznika@google.com>2019-05-09 15:34:44 -0700
committerShentubot <shentubot@google.com>2019-05-09 15:35:49 -0700
commit1bee43be13549b01e18d87df194ac219845de5cf (patch)
tree4b93064a7ec8b7de2cd515a692f11f0fc311b483 /pkg/sentry/fs/inode_operations.go
parent0f4be95a336bd5dbf214bc40eb5d1bbb5fce36a4 (diff)
Implement fallocate(2)
Closes #225 PiperOrigin-RevId: 247508791 Change-Id: I04f47cf2770b30043e5a272aba4ba6e11d0476cc
Diffstat (limited to 'pkg/sentry/fs/inode_operations.go')
-rw-r--r--pkg/sentry/fs/inode_operations.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/sentry/fs/inode_operations.go b/pkg/sentry/fs/inode_operations.go
index ac287e1e4..abafe4791 100644
--- a/pkg/sentry/fs/inode_operations.go
+++ b/pkg/sentry/fs/inode_operations.go
@@ -223,6 +223,10 @@ type InodeOperations interface {
// Implementations need not check that length >= 0.
Truncate(ctx context.Context, inode *Inode, size int64) error
+ // Allocate allows the caller to reserve disk space for the inode.
+ // It's equivalent to fallocate(2) with 'mode=0'.
+ Allocate(ctx context.Context, inode *Inode, offset int64, length int64) error
+
// WriteOut writes cached Inode state to a backing filesystem in a
// synchronous manner.
//