diff options
author | Eric Sandeen <sandeen@redhat.com> | 2009-11-19 14:25:42 -0500 |
---|---|---|
committer | Theodore Ts'o <tytso@mit.edu> | 2009-11-19 14:25:42 -0500 |
commit | 5328e635315734d42080de9a5a1ee87bf4cae0a4 (patch) | |
tree | 4952c04c9b1faec9a3c82a3743805efad05ed96e /fs/ext4/ext4.h | |
parent | 2bba702d4f88d7b010ec37e2527b552588404ae7 (diff) |
ext4: make trim/discard optional (and off by default)
It is anticipated that when sb_issue_discard starts doing
real work on trim-capable devices, we may see issues. Make
this mount-time optional, and default it to off until we know
that things are working out OK.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r-- | fs/ext4/ext4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 8825515eeddd..05ce38b981cb 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h | |||
@@ -750,6 +750,7 @@ struct ext4_inode_info { | |||
750 | #define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */ | 750 | #define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */ |
751 | #define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */ | 751 | #define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */ |
752 | #define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */ | 752 | #define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */ |
753 | #define EXT4_MOUNT_DISCARD 0x40000000 /* Issue DISCARD requests */ | ||
753 | 754 | ||
754 | #define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt | 755 | #define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt |
755 | #define set_opt(o, opt) o |= EXT4_MOUNT_##opt | 756 | #define set_opt(o, opt) o |= EXT4_MOUNT_##opt |