From 996bb9fddd5b68d1dfb5e27d30ca2c7a72448596 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Wed, 3 Apr 2013 22:04:52 -0400 Subject: ext4: support simple conversion of extent-mapped inodes to use i_blocks In order to make it simpler to test the code which support i_blocks/indirect-mapped inodes, support the conversion of inodes which are less than 12 blocks and which are contained in no more than a single extent. The primary intended use of this code is to converting freshly created zero-length files and empty directories. Note that the version of chattr in e2fsprogs 1.42.7 and earlier has a check that prevents the clearing of the extent flag. A simple patch which allows "chattr -e " to work will be checked into the e2fsprogs git repository. Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'fs/ext4/ext4.h') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index d05ba3886f33..73f3e60f7078 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -403,7 +403,7 @@ struct flex_groups { #define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ #define EXT4_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */ -#define EXT4_FL_USER_MODIFIABLE 0x004B80FF /* User modifiable flags */ +#define EXT4_FL_USER_MODIFIABLE 0x004380FF /* User modifiable flags */ /* Flags that should be inherited by new inodes from their parent. */ #define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\ @@ -2608,6 +2608,7 @@ extern int ext4_find_delalloc_range(struct inode *inode, extern int ext4_find_delalloc_cluster(struct inode *inode, ext4_lblk_t lblk); extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, __u64 start, __u64 len); +extern int ext4_ind_migrate(struct inode *inode); /* move_extent.c */ -- cgit v1.2.3