f2fs: support statx (1c6d8ee4) · Commits · 戴 / test

Last kernel has already support new syscall statx() in commit ("statx: Add a system call to make enhanced file info available"), with this interface we can show more file info including file creation and some attribute flags to user. This patch tries to support this functionality. Signed-off-by:

Chao Yu <yuchao0@huawei.com> Signed-off-by:

Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/file.c

+22 −1

Original line number	Diff line number	Diff line
		@@ -633,9 +633,30 @@ int f2fs_truncate(struct inode *inode)
		}

		int f2fs_getattr(const struct path path, struct kstat stat,
		u32 request_mask, unsigned int flags)
		u32 request_mask, unsigned int query_flags)
		{
		struct inode *inode = d_inode(path->dentry);
		struct f2fs_inode_info *fi = F2FS_I(inode);
		unsigned int flags;

		flags = fi->i_flags & FS_FL_USER_VISIBLE;
		if (flags & FS_APPEND_FL)
		stat->attributes \|= STATX_ATTR_APPEND;
		if (flags & FS_COMPR_FL)
		stat->attributes \|= STATX_ATTR_COMPRESSED;
		if (f2fs_encrypted_inode(inode))
		stat->attributes \|= STATX_ATTR_ENCRYPTED;
		if (flags & FS_IMMUTABLE_FL)
		stat->attributes \|= STATX_ATTR_IMMUTABLE;
		if (flags & FS_NODUMP_FL)
		stat->attributes \|= STATX_ATTR_NODUMP;

		stat->attributes_mask \|= (STATX_ATTR_APPEND \|
		STATX_ATTR_COMPRESSED \|
		STATX_ATTR_ENCRYPTED \|
		STATX_ATTR_IMMUTABLE \|
		STATX_ATTR_NODUMP);

		generic_fillattr(inode, stat);
		stat->blocks <<= 3;
		return 0;

Admin message