diff options
Diffstat (limited to 'internal/fusefrontend/compat_linux.go')
-rw-r--r-- | internal/fusefrontend/compat_linux.go | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/internal/fusefrontend/compat_linux.go b/internal/fusefrontend/compat_linux.go deleted file mode 100644 index 9a8684f..0000000 --- a/internal/fusefrontend/compat_linux.go +++ /dev/null @@ -1,35 +0,0 @@ -package fusefrontend - -import ( - "sync" - "syscall" -) - -import "github.com/rfjakob/gocryptfs/internal/tlog" - -var preallocWarn sync.Once - -// prealloc - preallocate space without changing the file size. This prevents -// us from running out of space in the middle of an operation. -func prealloc(fd int, off int64, len int64) (err error) { - for { - err = syscall.Fallocate(fd, FALLOC_FL_KEEP_SIZE, off, len) - if err == syscall.EINTR { - // fallocate, like many syscalls, can return EINTR. This is not an - // error and just signifies that the operation was interrupted by a - // signal and we should try again. - continue - } - if err == syscall.EOPNOTSUPP { - // ZFS does not support fallocate which caused gocryptfs to abort - // every write operation: https://github.com/rfjakob/gocryptfs/issues/22 - preallocWarn.Do(func() { - tlog.Warn.Printf("Warning: The underlying filesystem " + - "does not support fallocate(2). gocryptfs will continue working " + - "but is no longer resistant against out-of-space errors.\n") - }) - return nil - } - return err - } -} |