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| author | Chris Mason <chris.mason@oracle.com> | 2009-06-10 15:51:32 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-06-10 17:29:52 +0200 |
| commit | c289811cc096c57ff35550ee8132793a4f9b5b59 (patch) | |
| tree | 47599d47419911c8365e0350e286dece1d5e48dd /fs/btrfs/volumes.h | |
| parent | Btrfs: add mount -o ssd_spread to spread allocations out (diff) | |
| download | linux-c289811cc096c57ff35550ee8132793a4f9b5b59.tar.xz linux-c289811cc096c57ff35550ee8132793a4f9b5b59.zip | |
Btrfs: autodetect SSD devices
During mount, btrfs will check the queue nonrot flag
for all the devices found in the FS. If they are all
non-rotating, SSD mode is enabled by default.
If the FS was mounted with -o nossd, the non-rotating
flag is ignored.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 5c3ff6d02fd7..3c1f7310421e 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -107,6 +107,11 @@ struct btrfs_fs_devices { int seeding; int opened; + + /* set when we find or add a device that doesn't have the + * nonrot flag set + */ + int rotating; }; struct btrfs_bio_stripe { |