The removed paragraph in btrfs-man5.asciidoc says the same as the previous one. --- Documentation/btrfs-man5.asciidoc | 6 ------ Documentation/mkfs.btrfs.asciidoc | 10 +++++----- 2 files changed, 5 insertions(+), 11 deletions(-) diff --git a/Documentation/btrfs-man5.asciidoc b/Documentation/btrfs-man5.asciidoc index 6a1a04b7..87ed5496 100644 --- a/Documentation/btrfs-man5.asciidoc +++ b/Documentation/btrfs-man5.asciidoc @@ -224,12 +224,6 @@ during a period of low system activity will prevent latent interference with the performance of other operations. Also, a device may ignore the TRIM command if the range is too small, so running a batch discard has a greater probability of actually discarding the blocks. -+ -If discarding is not necessary to be done at the block freeing time, there's -`fstrim`(8) tool that lets the filesystem discard all free blocks in a batch, -possibly not much interfering with other operations. Also, the device may -ignore the TRIM command if the range is too small, so running the batch discard -can actually discard the blocks. *enospc_debug*:: *noenospc_debug*:: diff --git a/Documentation/mkfs.btrfs.asciidoc b/Documentation/mkfs.btrfs.asciidoc index 2a1c3592..ef3eb13f 100644 --- a/Documentation/mkfs.btrfs.asciidoc +++ b/Documentation/mkfs.btrfs.asciidoc @@ -27,17 +27,17 @@ mkfs.btrfs uses the entire device space for the filesystem. *-d|--data <profile>*:: Specify the profile for the data block groups. Valid values are 'raid0', -'raid1', 'raid5', 'raid6', 'raid10' or 'single' or dup (case does not matter). +'raid1', 'raid5', 'raid6', 'raid10' or 'single' or 'dup' (case does not matter). + -See 'DUP PROFILES ON A SINGLE DEVICE' for more. +See 'DUP PROFILES ON A SINGLE DEVICE' for more details. *-m|--metadata <profile>*:: Specify the profile for the metadata block groups. Valid values are 'raid0', 'raid1', 'raid5', 'raid6', 'raid10', 'single' or -'dup', (case does not matter). +'dup' (case does not matter). + -A single device filesystem will default to 'DUP', unless a SSD is detected. Then -it will default to 'single'. The detection is based on the value of +A single device filesystem will default to 'DUP', unless an SSD is detected, in which +case it will default to 'single'. The detection is based on the value of `/sys/block/DEV/queue/rotational`, where 'DEV' is the short name of the device. + Note that the rotational status can be arbitrarily set by the underlying block -- 2.23.0
