ExperimentalExperimentalAppendAppend-only file
ExperimentalAutoAutomount/referral quasi-directory
ExperimentalCaseCasefolded file
ExperimentalDAXDirect Access, avoiding the page cache
ExperimentalDeadremoved, but still open directory
ExperimentalDirsyncDirectory modifications are synchronous
ExperimentalEncryptedEncrypted file (using fs/crypto/)
ExperimentalIMAInode has an associated IMA struct
ExperimentalImmutableImmutable file
ExperimentalKernelFile is in use by the kernel (eg. fs/cachefiles)
ExperimentalNoDo not update access times
ExperimentalNoDo not update file c/mtime
ExperimentalNoInode is not counted to quota
ExperimentalNono suid or xattr security attributes
ExperimentalPrivateInode is fs-internal
ExperimentalSwapDo not truncate: swapon got its bmaps
ExperimentalSyncWrites are synced at once
ExperimentalVerityVerity file (using fs/verity/)
Inode flags
See
S_*ininclude/linux/fs.h(around L2325)