This commit enables the itree feature flag for the mke2fs and tune2fs. The 'itree' feature adds an auxiliary tree that should help with indexing directories. The tree resides on the file system along with the original HTree (althought it is placed outside of the directory file). It is a B+tree that contains directory entries sorted in inode order and it is used to implement the getdents/readdir system calls. The inodes are then returned in the optimal order, which improves the performance of directory traversal. Signed-off-by: Radek Pazdera <rpazdera@xxxxxxxxxx> --- misc/mke2fs.c | 3 ++- misc/tune2fs.c | 6 ++++-- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/misc/mke2fs.c b/misc/mke2fs.c index 7ff759d..672bcde 100644 --- a/misc/mke2fs.c +++ b/misc/mke2fs.c @@ -914,7 +914,8 @@ static __u32 ok_features[3] = { #ifdef CONFIG_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA| #endif - EXT4_FEATURE_RO_COMPAT_METADATA_CSUM + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM| + EXT4_FEATURE_RO_COMPAT_ITREE }; diff --git a/misc/tune2fs.c b/misc/tune2fs.c index 332aafd..a638d55 100644 --- a/misc/tune2fs.c +++ b/misc/tune2fs.c @@ -148,7 +148,8 @@ static __u32 ok_features[3] = { #ifdef CONFIG_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA | #endif - EXT4_FEATURE_RO_COMPAT_METADATA_CSUM + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM| + EXT4_FEATURE_RO_COMPAT_ITREE }; static __u32 clear_ok_features[3] = { @@ -169,7 +170,8 @@ static __u32 clear_ok_features[3] = { #ifdef CONFIG_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA | #endif - EXT4_FEATURE_RO_COMPAT_METADATA_CSUM + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM| + EXT4_FEATURE_RO_COMPAT_ITREE }; /* -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html