Unverified Commit 9bac0c94 authored by Kroese's avatar Kroese Committed by GitHub
Browse files

feat: Detect COW on btrfs

parent 63156868

src/disk.sh

+7 −2
Original line number Diff line number Diff line
@@ -260,7 +260,7 @@ addDisk () { 
  local DISK_ADDRESS=$7

  local DISK_FMT=$8

  local DISK_FILE="$DISK_BASE.$DISK_EXT"

  local DIR FS DATA_SIZE PREV_FMT PREV_EXT CUR_SIZE

  local DIR FS FA DATA_SIZE PREV_FMT PREV_EXT CUR_SIZE



  DIR=$(dirname "$DISK_FILE")

  [ ! -d "$DIR" ] && return 0
@@ -270,7 +270,12 @@ addDisk () { 
    info "Warning: the filesystem of $DIR is OverlayFS, this usually means it was binded to an invalid path!"

  fi

  if [[ "$FS" == "btrfs"* ]]; then

    if [ -f "$DISK_FILE" ] ; then

      FA=$(lsattr "$DISK_FILE")

      [[ "$FA" == *"C"* ]] && FA=$(lsattr -d "$DIR")

    else

      FA=$(lsattr -d "$DIR")

    fi

    if [[ "$FA" != *"C"* ]]; then

      info "Warning: the filesystem of $DIR is BTRFS, and COW (copy on write) is not disabled for that folder!"

      info "This will negatively affect write performance, please empty the folder and disable COW (chattr +C <path>)."