2015-09-02 20:53 GMT+02:00 J. Bruce Fields <bfields@xxxxxxxxxxxx>: >> @@ -453,7 +453,8 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask) >> * this, letting us set arbitrary permissions for filesystem access without >> * changing the "normal" UIDs which are used for other things. >> * >> - * When checking for MAY_APPEND, MAY_WRITE must also be set in @mask. >> + * When checking for MAY_APPEND, MAY_CREATE_FILE, MAY_CREATE_DIR, >> + * MAY_WRITE must also be set in @mask. > > Why? So that file systems that don't support MAY_APPEND can ignore the flag and will then automatically check for MAY_WRITE instead. > (Also: written as a simple list like that, it's a ambiguous how to > parse that comment: I think you mean that MAY_WRITE must be set whenever > MAY_APPEND, MAY_CREATE_FILE, or MAY_CREATE_DIR are set.) Yes, that's better. Thanks, Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
