Hi Alexander Viro, add ->mount function introduction into Documentation/filesystems/vfs.txt and note that the vfs will replace ->get_sb to ->mount Signed-off-by: LiuQi <lingjiujianke@xxxxxxxxx> --- Documentation/filesystems/porting | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index dfbcd1b..9e20eb5 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -66,6 +66,30 @@ foo_get_sb. --- [mandatory] +Newset change of file_system_type method (new mount function ->mount) + +*NOTE* linux will replace ->get_sb to ->mount soon. +the foo_mount function that would return dentry in case of success and negative +number in case of error (-EINVAL unless you have more informative error value to +report). Call it foo_fill_super(). Now declare + +struct dentry *foo_mount(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) +{ + return mount_bdev(fs_type, flags, dev_name, data, foo_fill_super); +} + +(or similar with s/bdev/nodev/ or s/bdev/single/, depending on the kind of +filesystem). + +Replace DECLARE_FSTYPE... with explicit initializer and have ->mount set as +foo_mount. + +--- + + +[mandatory] + Locking change: ->s_vfs_rename_sem is taken only by cross-directory renames. Most likely there is no need to change anything, but if you relied on global exclusion between renames for some internal purpose - you need to -- 1.7.2 Best Regards LiuQi -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html