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btrfs-progs: convert: Convert ext inode flags to btrfs inode flags

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Before this patch, btrfs-convert never copy ext* inode flags to
corresponding btrfs inode flags.

This makes common flags like APPEND/SYNC/SYNCDIR/IMMUTABLE not copied to
btrfs inode.

This patch introduces ext2_convert_inode_flags() function to handle the
convert, so btrfs-convert can copy as many inode flags as possible.

Reported-by: Lakshmipathi.G <lakshmipathi.g@gmail.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2016-10-10 10:30:34 +08:00 committed by David Sterba
parent 5bd4016363
commit 8570a0c3a4
1 changed files with 26 additions and 0 deletions
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26
btrfs-convert.c
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@ -2201,6 +2201,31 @@ static int ext2_check_state(struct btrfs_convert_context *cctx)
return 0;
}
/* EXT2_*_FL to BTRFS_INODE_FLAG_* stringification helper */
#define COPY_ONE_EXT2_FLAG(flags, ext2_inode, name) ({ \
if (ext2_inode->i_flags & EXT2_##name##_FL) \
flags |= BTRFS_INODE_##name; \
})
/*
* Convert EXT2_*_FL to corresponding BTRFS_INODE_* flags
*
* Only a subset of EXT_*_FL is supported in btrfs.
*/
static void ext2_convert_inode_flags(struct btrfs_inode_item *dst,
struct ext2_inode *src)
{
u64 flags = 0;
COPY_ONE_EXT2_FLAG(flags, src, APPEND);
COPY_ONE_EXT2_FLAG(flags, src, SYNC);
COPY_ONE_EXT2_FLAG(flags, src, IMMUTABLE);
COPY_ONE_EXT2_FLAG(flags, src, NODUMP);
COPY_ONE_EXT2_FLAG(flags, src, NOATIME);
COPY_ONE_EXT2_FLAG(flags, src, DIRSYNC);
btrfs_set_stack_inode_flags(dst, flags);
}
/*
* copy a single inode. do all the required works, such as cloning
* inode item, creating file extents and creating directory entries.
@ -2223,6 +2248,7 @@ static int ext2_copy_single_inode(struct btrfs_trans_handle *trans,
BTRFS_INODE_NODATASUM;
btrfs_set_stack_inode_flags(&btrfs_inode, flags);
}
ext2_convert_inode_flags(&btrfs_inode, ext2_inode);
switch (ext2_inode->i_mode & S_IFMT) {
case S_IFREG: